☆ 4.6 Review

A Review of Ultrathin Piezoelectric Films

MATERIALS (2023)

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Article Engineering, Electrical & Electronic

Large in-plane and out-of-plane piezoelectricity in 2D?-LiMX2 (M=Al, Ga and In; X=S, Se and Te) monolayers

Qiaoya Lv et al.

Summary: This study investigates the properties of non-centrosymmetric 2D Li-based ternary chalcogenide monolayers using first-principles calculations. It identifies stable gamma-LiMX2 (M = Al, Ga and In; X = S, Se and Te) structures that have direct bandgaps greater than 0.1 eV and excellent in-plane piezoelectric coefficients. These structures show potential for use in lightweight and high-performance piezoelectric nanodevices.

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING (2023)

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Article Physics, Multidisciplinary

Nonrelativistic Spin-Momentum Coupling in Antiferromagnetic Twisted Bilayers

Ran He et al.

Summary: In this study, nonrelativistic spin-momentum coupling is predicted in two-dimensional materials. Twist operations in antiferromagnetic bilayers can induce spin splitting comparable to spin-orbit coupling, and generate a transverse spin current with a high charge-spin conversion ratio. These findings demonstrate the potential for achieving electrically controlled magnetism in materials without spin-orbit coupling.

PHYSICAL REVIEW LETTERS (2023)

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Article Chemistry, Physical

Excellent thermoelectric properties of monolayer MoS2-MoSe2 aperiodic superlattices

Jue Wang et al.

Summary: The phonon thermal conductivity of superlattices can be effectively modulated by changing the superlattice arrangement and inducing structural defects, which in turn enhances the thermoelectric performance. The thermoelectric properties of the superlattices increase with temperature and central region length, and the figure of merit can reach 1.38 at 500 K for the aperiodic superlattice. This suggests a new potential strategy for tuning the thermoelectric performance of devices by exploiting the arrangements of aperiodic superlattices.

APPLIED SURFACE SCIENCE (2023)

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Article Chemistry, Physical

Ferroelastic Zr2P2XY (X/Y = I, Br, Cl or F; X =?Y) monolayers with tunable in-plane electronic anisotropy and remarkable out-of-plane piezoelectricity

Yun-Qin Li et al.

Summary: Researchers report a new tetragonal Zr2P2XY monolayer with intrinsic ferroelasticity and remarkable piezoelectricity. These monolayers exhibit stability and controllable anisotropic properties in mechanics and electronics. The Zr2P2BrCl monolayer shows excellent ferroelastic performance and strong out-of-plane piezoelectricity.

APPLIED SURFACE SCIENCE (2023)

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Article Materials Science, Multidisciplinary

Exact first-principles calculation reveals universal moir? potential in twisted two-dimensional materials

Dong Liu et al.

Summary: Recently, twisted moire systems have attracted intense attention due to their potential in regulating electrons and exploring novel properties. Various theoretical models have been proposed to explain the emergence of the moire potential, but an exact first-principles method for calculating it is still lacking. In this study, we directly calculate and analyze the surface superlattice potential using first-principles calculations. Our findings reveal that the moire potential is a common phenomenon in twisted systems and is determined by the local work function. Furthermore, we demonstrate that the surface moire potential is positively proportional to the local work function in single-atom-thick materials and negatively in multi-atom-thick materials. Additionally, the amplitude of the moire potential in an unpolarized phosphorene system is much larger than that in a polarized h-BN system. These results provide important insights into moire systems and twistronics.

PHYSICAL REVIEW B (2023)

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Article Chemistry, Multidisciplinary

Nuclear Quantum Effects on the Charge-Density Wave Transition in NbX2 (X = S, Se)

Yueshao Zheng et al.

Summary: Understanding the origin of charge-density wave (CDW) instability is crucial for manipulating novel collective electronic states. This study investigates the influence of electron correlation effects and nuclear quantum effects on the CDW ordering in layered transition metal dichalcogenides (TMDs). The results show that the quantum motion of sulfur anions significantly reduces the CDW transition temperature in NbS2, resulting in distinct CDW features compared to NbSe2.

NANO LETTERS (2022)

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Article Chemistry, Physical

Coexistence of intrinsic room-temperature ferromagnetism and piezoelectricity in monolayer BiCrX3 (X = S, Se, and Te)

Guang Song et al.

Summary: By using first-principles calculations, it has been successfully predicted that BiCrX3 monolayers possess both ferromagnetism and piezoelectricity, with high Curie temperatures and significant magnetic anisotropic energies. The in-plane piezoelectric coefficients of BiCrX3 monolayers are higher than those of traditional three-dimensional piezoelectric materials, making them promising for applications in spintronics and nano-sized sensors.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2022)

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Editorial Material Multidisciplinary Sciences

Breaking symmetry for piezoelectricity

Fei Li

SCIENCE (2022)

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Article Multidisciplinary Sciences

Induced giant piezoelectricity in centrosymmetric oxides

D-S Park et al.

Summary: This study breaks the crystallographic symmetry and induces large and sustainable piezoelectric effects in centrosymmetric materials. The experiment shows the generation of extraordinarily large piezoelectric responses in cubic fluorite gadolinium-doped CeO2-x films, which are two orders of magnitude larger than the responses observed in the presently best-known lead-based piezoelectric relaxor-ferroelectric oxide. This finding provides opportunities to design environmentally friendly piezoelectric materials.

SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Optimizing Piezoelectric Nanocomposites by High-Throughput Phase-Field Simulation and Machine Learning

Weixiong Li et al.

Summary: Piezoelectric nanocomposites with oxide fillers in a polymer matrix combine the high piezoelectric response of oxides and the flexibility and biocompatibility of polymers. Through high-throughput phase-field simulation, this study systematically investigates the influence of oxide filler morphology and spatial orientation on the properties of piezoelectric nanocomposites, and establishes a predictive model for their performance.

ADVANCED SCIENCE (2022)

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Article Physics, Multidisciplinary

Thermoelectric Conversion From Interface Thermophoresis and Piezoelectric Effects

Yu-Jia Zeng et al.

Summary: This study proposes an indirect thermoelectric conversion mechanism based on a combination of thermophoresis and piezoelectric effects. The feasibility of this mechanism is demonstrated through theoretical modeling and molecular dynamics simulation. The results show that the output voltage obtained using this mechanism is significantly higher and can be tuned using temperature difference. This mechanism has potential applications in converting thermal energy into electrical energy at the nanoscale level.

FRONTIERS IN PHYSICS (2022)

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Article Physics, Applied

High thermoelectric performance induced by strong anharmonic effects in monolayer (PbX)2 (X = S, Se, Te)

Pin-Zhen Jia et al.

Summary: This paper investigates the thermoelectric performance of two-dimensional (PbX)(2) (X = S, Se, Te) monolayers using first-principles calculations and Boltzmann transport theory. The results show that applying a biaxial tensile strain significantly enhances the thermoelectric performance, mainly due to the reduced phonon thermal conductivity. The excellent ZT value of the p-type (PbX)(2) (X = S, Se, Te) monolayers suggests their potential application in the thermoelectric field, and external strain has a promising prospect in enhancing their performance.

APPLIED PHYSICS LETTERS (2022)

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Article Physics, Applied

Large out-of-plane piezoelectric response in ferromagnetic monolayer NiClI

San-Dong Guo et al.

Summary: In this study, a two-dimensional piezoelectric ferromagnetic material NiClI with large magnetic anisotropy energy and piezoelectricity was predicted, showing potential value for device applications.

APPLIED PHYSICS LETTERS (2022)

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Article Chemistry, Physical

The flexible Janus X2PAs (X = Si, Ge and Sn) monolayers with in-plane and out-of-plane piezoelectricity

Yang Wu et al.

Summary: This paper presents the demonstration of Janus X2PAs (X = Si, Ge and Sn) monolayers, which possess piezoelectricity in both in-plane and out-of-plane. The investigation shows that these monolayers are stable, flexible, and exhibit excellent piezoelectric effects. Among them, the Sn2PAs monolayer has the largest piezoelectric coefficient, making it a promising candidate for multifunctional sensing and controlling of nanodevices.

APPLIED SURFACE SCIENCE (2022)

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Article Chemistry, Physical

High performance piezotronic thermoelectric devices based on zigzag MoS2 nanoribbon

Dexing Tang et al.

Summary: This study theoretically investigates the piezotronic effect on the thermoelectric properties of MoS2 zigzag nanoribbons, showing a significant increase in thermoelectric efficiency and Seebeck coefficient. This research not only explores the impact of piezotronic effect on thermoelectric properties, but also suggests a new approach for designing high-performance thermoelectric devices.

NANO ENERGY (2022)

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Article Chemistry, Physical

Strong piezoelectric response in layered CuInP2S6 nanosheets for piezoelectric nanogenerators

Weng Fu Io et al.

Summary: Piezoelectricity in 2D materials has great potential, but most of the discovered 2D layered piezoelectric materials only possess in-plane piezoelectricity, limiting their integration with rigid substrates. CuInP2S6 is a promising 2D material with excellent properties, including out-of-plane ferroelectricity and high stability at room temperature. However, research on the piezoelectric effect and its application in 2D CuInP2S6 is still in the early stage.

NANO ENERGY (2022)

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Article Physics, Applied

Enhanced High-Temperature Thermoelectric Performance by Strain Engineering in BiOCl

Cheng-Wei Wu et al.

Summary: In this study, the thermoelectric properties of semiconductor BiOCl crystals were accurately predicted, and it was found that applying in-plane biaxial tensile strain can further enhance its performance, making it an excellent high-temperature thermoelectric material.

PHYSICAL REVIEW APPLIED (2022)

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Article Engineering, Electrical & Electronic

Mechanical characteristics of laminated film vibrator using an ultra-thin MEMS actuator

Toshihiro Takeshita et al.

Summary: This paper describes the fabrication of a laminated film vibrator using ultra-thin MEMS technology and the effect of lamination on the actuator. The lamination structure influences the mechanical characteristics and dynamic behavior of the vibrator, allowing for adjustment of its resonant frequency for different applications. The laminated film actuator has potential use as a flexible hybrid electronics haptic device for monitoring vital signs.

JOURNAL OF MICROMECHANICS AND MICROENGINEERING (2022)

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Article Chemistry, Physical

Self-powered, high sensitivity printed e-tattoo sensor for unobtrusive arterial pulse wave monitoring

Mika-Matti Laurila et al.

Summary: Developing self-powered, highly unobtrusive, low-cost, and accurate arterial pulse wave monitoring devices is important for cost-efficient monitoring of entire cardiovascular disease risk groups. This study presents a scalable fabrication process for a highly unobtrusive and ultra-thin (around 4.2 μm) e-tattoo arterial pulse wave sensor, which utilizes transparent and biocompatible polymer-based materials. The sensor demonstrates high sensitivity in measuring radial artery pulse wave due to its thin form factor and optimized ferroelectric performance.

NANO ENERGY (2022)

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Article Physics, Applied

Strong strain-dependent phonon hydrodynamic window in bilayer graphene

Bowen Zeng et al.

Summary: Phonon hydrodynamics, a collective motion of phonons, has recently attracted attention due to its extended temperature window in layered materials. This study demonstrates that the phonon hydrodynamic window in bilayer graphene can be strongly altered by strain.

APPLIED PHYSICS LETTERS (2022)

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Article Materials Science, Multidisciplinary

Strain-induced ferroelectricity and piezoelectricity in centrosymmetric binary oxides

Xiaoqing Yang et al.

Summary: First-principles calculations were used to predict the ferroelectricity in the binary rocksalt oxide family by applying biaxial strain. The origins of such ferroelectricity were discussed in terms of lattice dynamics and electronic structure properties. It was found that a remarkably large longitudinal piezoelectric effect can be induced under compressive strain. These findings have the potential to inspire the search for new simple binary oxides with ferroelectricity, leading to the development of novel devices.

PHYSICAL REVIEW B (2022)

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Article Materials Science, Multidisciplinary

Edge states of topological acoustic phonons in graphene zigzag nanoribbons

Zhong-Ke Ding et al.

Summary: This study demonstrates the importance of the acoustic sum rule (ASR) in evaluating the topological acoustic edge states in graphene and discovers new topological phonon modes. These findings are significant for the method of searching for topological phonon states and the design of phononic devices.

PHYSICAL REVIEW B (2022)

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Article Materials Science, Multidisciplinary

Quantum mechanical modeling of magnon-phonon scattering heat transport across three-dimensional ferromagnetic/nonmagnetic interfaces

Hui Pan et al.

Summary: In this paper, a new theoretical formalism is proposed for incorporating magnon-phonon scattering (MPS) into the quantum heat transport of three-dimensional ferromagnetic nanostructures. A computational scheme is developed through diagrammatic perturbation analysis, and a generalized formalism of heat flow is presented, with thermal rectification observed in numerical simulations across F/N interfaces based on CrI3 monolayer.

PHYSICAL REVIEW B (2022)

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Article Chemistry, Physical

Interface induced performance enhancement in flexible BaTiO3/PVDF-TrFE based piezoelectric nanogenerators

Kunming Shi et al.

Summary: This study presents a novel approach of interface tailoring to enhance the dispersion and output performance of piezoelectric reinforcing phase in nanocomposites, which shows great potential for applications in nanogenerators.

NANO ENERGY (2021)

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Article Chemistry, Physical

PANI/PVDF-TrFE porous aerogel bulk piezoelectric and triboelectric hybrid nanogenerator based on in-situ doping and liquid nitrogen quenching

Shengrui Yu et al.

Summary: A novel method is proposed for the mass production of high-performance 8-PVDF-based piezoelectric and triboelectric hybrid nanogenerator (PTNG) by using large-scale PVDF films or bulks with liquid nitrogen-induced phase transition and in-situ doped conductive polyaniline (PANI). This innovative approach demonstrates excellent piezoelectric properties and provides a feasible direction for the industrialization of high-performance PENGs.

NANO ENERGY (2021)

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Article Physics, Applied

Controllable anisotropic thermoelectric properties in 2D covalent organic radical frameworks

Xuan-Hao Cao et al.

Summary: By combining density functional theory with the Boltzmann transport equation, the study investigated the thermoelectric properties of graphphenyl-based materials. It was found that breaking symmetry and twisting the phenyl ring can realize anisotropic thermoelectric properties, and rotating the phenyl ring can further enhance the performance of these materials. The results indicate excellent thermoelectric performance of the materials, two orders of magnitude higher than graphene, with a wide range of suitable working temperatures.

APPLIED PHYSICS LETTERS (2021)

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Review Instruments & Instrumentation

Recent trends in piezoelectric actuators for precision motion and their applications: a review

S. Mohith et al.

Summary: This review explores the latest advancements in piezoelectric actuator technology, covering aspects such as materials/actuator development, working principles, classifications, design features, and application domains. A comparative study is conducted to evaluate the pros and cons of different actuators.

SMART MATERIALS AND STRUCTURES (2021)

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Review Chemistry, Physical

A review on piezo- and pyroelectric responses of flexible nano- and micropatterned polymer surfaces for biomedical sensing and energy harvesting applications

Roman A. Surmenev et al.

Summary: This review highlights the recent advances in using AAO membranes as templates to prepare PVDF or PVDF-TrFE piezoelectric generators, showcasing the significant improvement in energy harvesting and sensing performances on nanoand micropillars compared to flat films. The study suggests that nanoand microstructuring of biocompatible piezopolymers holds promise for applications in various devices such as biosensors, piezoelectric generators, smart drug-delivery systems, and multiferroic systems.

NANO ENERGY (2021)

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Article Chemistry, Physical

Selective patterning of out-of-plane piezoelectricity in MoTe2 via focused ion beam

Daehee Seol et al.

Summary: It has been demonstrated that focused ion beams can create out-of-plane piezoelectricity on multi-layered MoTe2, and the selectively patterned out-of-plane piezoelectricity in the desired area was quantitatively examined using atomic force microscopy. This approach is expected to expand the application fields of TMD-based devices.

NANO ENERGY (2021)

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Review Chemistry, Physical

A comprehensive review on the state-of-the-art of piezoelectric energy harvesting

Nurettin Sezer et al.

Summary: Piezoelectric energy harvesting technology converts mechanical energy into electric power and has gained significant attention in the scientific community. Advances in materials and manufacturing processes are expected to power many electronics with piezoelectric generators in the future.

NANO ENERGY (2021)

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Article Chemistry, Multidisciplinary

Conformal, Ultra-thin Skin-Contact-Actuated Hybrid Piezo/Triboelectric Wearable Sensor Based on AlN and Parylene-Encapsulated Elastomeric Blend

Massimo Mariello et al.

Summary: This work presents a novel compliant, conformal hybrid piezoelectric-triboelectric ultra-thin wearable sensor made of biocompatible materials, capable of detecting various bio-signals with high sensitivity and wide measurement range for identifying gait walking, hand gestures, and monitoring human joints motions. Furthermore, the device demonstrates energy harvesting capabilities suitable for fabrication of more complex self-powered sensing systems.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Physics, Applied

Intrinsic room-temperature ferromagnetic semiconductor InCrTe3 monolayers with large magnetic anisotropy and large piezoelectricity

Guang Song et al.

Summary: The research demonstrates that 2D InCrTe3 monolayers possess stability, magnetism, and piezoelectricity, making them suitable for spintronics and nano-sized sensors applications.

APPLIED PHYSICS LETTERS (2021)

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Article Physics, Applied

Effect of out-of-plane strain on the phonon structures and anharmonicity of twisted multilayer graphene

Yu-Jia Zeng et al.

Summary: Investigated the evolution of phonon structures in twisted bilayer and multilayer two-dimensional materials under out-of-plane strain and twisting, revealing different phonon behaviors and a potential method to enhance phonon anharmonic scattering in stacked multilayer graphene.

APPLIED PHYSICS LETTERS (2021)

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Article Engineering, Electrical & Electronic

Giant Piezoelectricity of Janus M2SeX (M = Ge, Sn; X = S, Te) Monolayers

Jian Qiu et al.

Summary: The two-dimensional Janus M2SeX monolayers exhibit large piezoelectric coefficients and high carrier mobility due to the lack of mirror symmetry and flexible mechanical properties, showing potential applications in flexible electronic devices and piezoelectric devices.

IEEE ELECTRON DEVICE LETTERS (2021)

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Article Nanoscience & Nanotechnology

Superflexible and Lead-Free Piezoelectric Nanogenerator as a Highly Sensitive Self-Powered Sensor for Human Motion Monitoring

Di Yu et al.

Summary: The study reveals the advantage of low Curie temperature in flexible piezoelectric sensors, which enables large polarization changes with small alterations of force. The high piezoelectric coefficient and low T-c of BaTi0.88Sn0.12O3 (BTS) make it a suitable material for this purpose. Self-powered sensors based on BTS-GFF/PVDF composites demonstrate outstanding performance in detecting tiny forces in the low force region.

NANO-MICRO LETTERS (2021)

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Article Chemistry, Physical

Exceptional piezoelectricity, high thermal conductivity and stiffness and promising photocatalysis in two-dimensional MoSi2N4 family confirmed by first-principles

Bohayra Mortazavi et al.

Summary: The MA(2)Z(4) nanosheets exhibit superior stability, mechanical properties, electronic properties, and thermal conductivity. In particular, WSi2N4, CrSi2N4, and MoSi2N4 demonstrate the highest piezoelectric coefficients among all known 2D materials, highlighting their potential for applications in nanoelectronics, optoelectronics, energy storage/conversion, and thermal management systems.

NANO ENERGY (2021)

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Article Chemistry, Multidisciplinary

Enhanced Piezoelectric Output Performance of the SnS2/SnS Heterostructure Thin-Film Piezoelectric Nanogenerator Realized by Atomic Layer Deposition

Viet Anh Cao et al.

Summary: This study reports the formation of SnS2/SnS heterostructure thin film using ALD to enhance the output performance of a PENG. The heterostructure significantly increased the piezoelectric response, resulting in improved output voltage and current density. Thickness-controllable large-area uniform thin-film deposition via ALD ensures reproducible output performance and adjustability of output density depending on applications.

ACS NANO (2021)

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Review Physics, Condensed Matter

A review of ultra-thin ferroelectric films

Zi-Lin Yuan et al.

Summary: This review summarizes recent research progress in ultra-thin film ferroelectric materials, discussing various key aspects such as crystal structure, ferroelectric mechanism, characterization, fabrication methods, applications, and future outlooks. It aims to offer ideas for further improvement of ferroelectric properties of ultra-thin films and promote practical applications.

JOURNAL OF PHYSICS-CONDENSED MATTER (2021)

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Review Chemistry, Multidisciplinary

Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

Susmriti Das Mahapatra et al.

Summary: Piezoelectric materials are known as smart materials for their ability to transduce mechanical pressure into electrical signals, and are extensively utilized in energy harvesting for their scalability and high-power densities. They have promising applications in wireless devices and self-powered sensors, but also face challenges.

ADVANCED SCIENCE (2021)

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Article Materials Science, Multidisciplinary

Coexistence of large out-of-plane and in-plane piezoelectricity in 2D monolayer Li-based ternary chalcogenides LiMX2

Siyuan Liu et al.

Summary: This study predicts the properties of a family of piezoelectric materials, LiMX2, using first-principles calculations. These materials exhibit both out-of-plane and in-plane piezoelectricity, with particularly high out-of-plane coefficients for LiAlSe2, LiGaTe2, and LiAlTe2. The coexistence of large out-of-plane and in-plane piezoelectricity enables potential applications in both directional and nondirectional piezoelectric devices.

RESULTS IN PHYSICS (2021)

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Article Chemistry, Physical

Generating large out-of-plane piezoelectric properties of atomically thin MoS2via defect engineering

Li-Ren Ng et al.

Summary: By utilizing density functional theory, we calculated the piezoelectric properties of asymmetrically defected MoS2, which exhibits excellent out-of-plane piezoelectric response. The piezoelectricity can be tuned by controlling the defect ratio, making it suitable for integration into two-dimensional devices.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

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Article Chemistry, Multidisciplinary

Intrinsic room-temperature piezoelectric quantum anomalous hall insulator in Janus monolayer Fe2IX (X = Cl and Br)

San-Dong Guo et al.

Summary: By first-principles calculations, a two-dimensional piezoelectric quantum anomalous hall insulator with dynamic, mechanical, and thermal stabilities at room temperature is predicted; under spin-orbit coupling, these materials exhibit quantum anomalous Hall states with sizable gaps and two chiral edge modes; the materials also show high piezoelectric response and Curie temperature, making them a potential platform for multi-functional spintronic applications.

NANOSCALE (2021)

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Article Materials Science, Multidisciplinary

Janus two-dimensional transition metal dichalcogenide oxides: First-principles investigation of WXO monolayers with X = S, Se, and Te

M. Jahangirzadeh Varjovi et al.

Summary: In this paper, the authors investigated the physical properties of three structural phases of Janus WXO monolayers using first-principles methods. They found that these monolayers exhibit thermal stability and a large piezoelectric response at high temperatures. Additionally, the formation of Janus monolayers led to the appearance of additional Raman active modes, indicating their unique properties compared to binary systems.

PHYSICAL REVIEW B (2021)

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Article Chemistry, Multidisciplinary

Piezoelectricity in Multilayer Black Phosphorus for Piezotronics and Nanogenerators

Wenda Ma et al.

ADVANCED MATERIALS (2020)

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Article Physics, Applied

Out-of-plane electromechanical coupling in transition metal dichalcogenides

Christopher J. Brennan et al.

APPLIED PHYSICS LETTERS (2020)

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Article Nanoscience & Nanotechnology

Janus structure derivatives SnP-InS, GeP-GaS and SiP-AlS monolayers with in-plane and out-of-plane piezoelectric performance

Yan-Zhen Zhao et al.

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES (2020)

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Article Physics, Applied

Large Valley Splitting in van der Waals Heterostructures with Type-III Band Alignment

Qianze Li et al.

PHYSICAL REVIEW APPLIED (2020)

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Article Physics, Applied

Elasticity, piezoelectricity, and mobility in two-dimensional BiTeI from a first-principles study

Wen-Zhi Xiao et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2020)

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Review Nanoscience & Nanotechnology

Recent Advances in Strain-Induced Piezoelectric and Piezoresistive Effect-Engineered 2D Semiconductors for Adaptive Electronics and Optoelectronics

Feng Li et al.

NANO-MICRO LETTERS (2020)

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Article Physics, Applied

Structural and piezoelectric properties of ultra-thin ScxAl1-xN films grown on GaN by molecular beam epitaxy

Joseph Casamento et al.

APPLIED PHYSICS LETTERS (2020)

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Review Chemistry, Analytical

Piezoelectric Energy Harvesting Solutions: A Review

Corina Covaci et al.

SENSORS (2020)

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Article Physics, Condensed Matter

Janus XM-GaS (M=Si, Ge, Sn; X=N, P) monolayers: Multifunctional properties for photocatalysis, piezoelectricity and second harmonic generation

Yaoyao Hu et al.

PHYSICA B-CONDENSED MATTER (2020)

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Article Chemistry, Physical

Tin disulfide piezoelectric nanogenerators for biomechanical energy harvesting and intelligent human-robot interface applications

Po-Kang Yang et al.

NANO ENERGY (2020)

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Article Chemistry, Physical

Flexible PVDF based piezoelectric nanogenerators

Lijun Lu et al.

NANO ENERGY (2020)

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Article Nanoscience & Nanotechnology

Piezoelectric Responses of Mechanically Exfoliated Two-Dimensional SnS2 Nanosheets

Yichao Wang et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Chemistry, Physical

Ultra-thin lead oxide piezoelectric layers for reduced environmental contamination using a liquid metal-based process

Mohammad B. Ghasemian et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

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Article Chemistry, Multidisciplinary

Shape- and size dependent piezoelectric properties of monolayer hexagonal boron nitride nanosheets

Yang Nan et al.

NANOSCALE ADVANCES (2020)

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Article Physics, Applied

Piezo-phototronic solar cell based on 2D monochalcogenides materials

Gyan Michael et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2019)

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Article Chemistry, Physical

Tribo-piezoelectricity in Janus transition metal dichalcogenide bilayers: A first-principles study

Haifang Cai et al.

NANO ENERGY (2019)

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Article Chemistry, Physical

2D piezotronics in atomically thin zinc oxide sheets: Interfacing gating and channel width gating

Longfei Wang et al.

NANO ENERGY (2019)

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Article Chemistry, Physical

Atomic-scale symmetry breaking for out-of-plane piezoelectricity in two-dimensional transition metal dichalcogenides

Seunghun Kang et al.

NANO ENERGY (2019)

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Review Instruments & Instrumentation

A review of energy harvesting using piezoelectric materials: state-of-the-art a decade later (2008-2018)

Mohsen Safaei et al.

SMART MATERIALS AND STRUCTURES (2019)

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Article Chemistry, Physical

Large out-of-plane piezoelectricity of oxygen functionalized MXenes for ultrathin piezoelectric cantilevers and diaphragms

Jie Tan et al.

NANO ENERGY (2019)

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Review Materials Science, Multidisciplinary

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Suvrajyoti Mishra et al.

MACROMOLECULAR MATERIALS AND ENGINEERING (2019)

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Article Chemistry, Multidisciplinary

Large Piezoelectric Strain in Sub-10 Nanometer Two-Dimensional Polyvinylidene Fluoride Nanoflakes

Naveed Hussain et al.

ACS NANO (2019)

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Article Materials Science, Multidisciplinary

Intrinsic bending flexoelectric constants in two-dimensional materials

Xiaoying Zhuang et al.

PHYSICAL REVIEW B (2019)

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Review Chemistry, Multidisciplinary

New developments in composites, copolymer technologies and processing techniques for flexible fluoropolymer piezoelectric generators for efficient energy harvesting

Nick A. Shepelin et al.

ENERGY & ENVIRONMENTAL SCIENCE (2019)

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Article Nanoscience & Nanotechnology

Tunable Out-of-Plane Piezoelectricity in Thin-Layered MoTe2 by Surface Corrugation-Mediated Flexoelectricity

Seunghun Kang et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

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Article Chemistry, Multidisciplinary

Ultrathin Piezotronic Transistors with 2 nm Channel Lengths

Longfei Wang et al.

ACS NANO (2018)

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Article Chemistry, Multidisciplinary

Multidirection Piezoelectricity in Mono- and Multilayered Hexagonal α-In2Se3

Fei Xue et al.

ACS NANO (2018)

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Article Physics, Applied

Surface oxidation: an effective way to induce piezoelectricity in 2D black phosphorus

Jiabin Li et al.

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Intercorrelated In-Plane and Out-of-Plane Ferroelectricity in Ultrathin Two-Dimensional Layered Semiconductor In2Se3

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Ultrahigh piezoelectricity in ferroelectric ceramics by design

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Printing two-dimensional gallium phosphate out of liquid metal

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Piezoelectricity of atomically thin WSe2 via laterally excited scanning probe microscopy

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A comprehensive review on piezoelectric energy harvesting technology: Materials, mechanisms, and applications

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Emergence of high piezoelectricity along with robust electron mobility in Janus structures in semiconducting Group IVB dichalcogenide monolayers

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Tunable magneto-optical effects in hole-doped group-IIIA metal-monochalcogenide monolayers

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Giant Piezoelectric Effects in Monolayer Group-V Binary Compounds with Honeycomb Phases: A First-Principles Prediction

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Data Mining for New Two- and One-Dimensional Weakly Bonded Solids and Lattice-Commensurate Heterostructures

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Out-of-Plane Electromechanical Response of Monolayer Molybdenum Disulfide Measured by Piezoresponse Force Microscopy

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Janus monolayers of transition metal dichalcogenides

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NATURE NANOTECHNOLOGY (2017)

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Advances in piezoelectric thin films for acoustic biosensors, acoustofluidics and lab-on-chip applications

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Multiscale-structuring of polyvinylidene fluoride for energy harvesting: the impact of molecular-, micro- and macro-structure

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Flexible PET/EVA-based piezoelectret generator for energy harvesting in harsh environments

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Reliable Piezoelectricity in Bilayer WSe2 for Piezoelectric Nanogenerators

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Large In-Plane and Vertical Piezoelectricity in Janus Transition Metal Dichalchogenides

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Enhanced piezoelectric effect in Janus group-III chalcogenide monolayers

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Lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 nanowires for energy harvesting

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Two new phases of monolayer group-IV monochalcogenides and their piezoelectric properties

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Self-Powered Wireless Sensor Node Enabled by an Aerosol-Deposited PZT Flexible Energy Harvester

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Directional dependent piezoelectric effect in CVD grown monolayer MoS2 for flexible piezoelectric nanogenerators

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Piezotronics and piezo-phototronics for adaptive electronics and optoelectronics

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Subatomic deformation driven by vertical piezoelectricity from CdS ultrathin films

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Ab Initio Prediction of Piezoelectricity in Two-Dimensional Materials

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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Giant piezoelectricity of monolayer group IV monochalcogenides: SnSe, SnS, GeSe, and GeS

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APPLIED PHYSICS LETTERS (2015)

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Piezoelectricity in two-dimensional group-III monochalcogenides

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The effect of substrate and external strain on electronic structures of stanene film

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Strong piezoelectricity in single-layer graphene deposited on SiO2 grating substrates

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Observation of piezoelectricity in free-standing monolayer MoS2

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Large-Area and Flexible Lead-Free Nanocomposite Generator Using Alkaline Niobate Particles and Metal Nanorod Filler

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Piezoelectric properties of graphene oxide: A first-principles computational study

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Piezoelectricity of single-atomic-layer MoS2 for energy conversion and piezotronics

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Development of high performance piezoelectric d(33) mode MEMS vibration energy harvester based on PMN-PT single crystal thick film

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Anomalous piezoelectricity in two-dimensional graphene nitride nanosheets

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High-mobility transport anisotropy and linear dichroism in few-layer black phosphorus

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The Effect of Hydrogen and Fluorine Coadsorption on the Piezoelectric Properties of Graphene

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Probing Symmetry Properties of Few-Layer MoS2 and h-BN by Optical Second-Harmonic Generation

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The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets

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High performance piezoelectric devices based on aligned arrays of nanofibers of poly(vinylidenefluoride-co-trifluoroethylene)

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Coaxing graphene to be piezoelectric

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APPLIED PHYSICS LETTERS (2012)

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Intrinsic Piezoelectricity in Two-Dimensional Materials

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Study of the ferroelectric properties of BaTiO3 films grown on an iron sublayer using atomic force microscopy

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Aluminum nitride on titanium for CMOS compatible piezoelectric transducers

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Theory of elastic and piezoelectric effects in two-dimensional hexagonal boron nitride

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Scaling of structure and electrical properties in ultrathin epitaxial ferroelectric heterostructures

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Piezoelectric characterization of individual zinc oxide nanobelt probed by piezoresponse force microscope

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