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Article
Chemistry, Multidisciplinary
Liwei Tang et al.
Summary: The photoexcited pyroelectricity in ferroelectrics allows the direct conversion of light radiation into electric signal without external power source, promoting optoelectronic device performances. A new 2D perovskite-type ferroelectric, (BBA)2(EA)2Pb3Br10, exhibits broadband light-induced pyroelectric effects in the UV-to-IR region, enabling self-powered photodetection. This novel ferroelectric material surpasses oxide ferroelectrics in terms of sensitivity, responsivity, and detectivity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Beibei Wang et al.
Summary: Two-dimensional hybrid perovskites, especially ferroelectric crystals, have great potential in optoelectronics as polarized light detectors. In this study, exceptional polarization responses to polarized light were achieved in ferroelectric crystals of (isopentylammonium)(2)CsPb2Br7. The alternate packing of organic spacers and inorganic sheets leads to its intrinsic optical dichroism, creating sinusoidal photocurrents with a polarization ratio of approximately 1.2 at 10 V bias. Notably, a large polarization ratio of approximately 7.2 can be obtained based on its bulk photovoltaic effect at zero bias (self-powered mode). This work sheds light on optimizing photoelectric behaviors in targeted optoelectronic device applications through ferroelectric bulk photovoltaic effect.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Matteo Manzi et al.
Summary: Ferroelectric ceramics have extensive applications in various fields due to their dielectric, piezoelectric, and pyroelectric properties. Recently, hybrid organic-inorganic halide perovskites have gained attention for their optical and electronic properties, including ferroelectricity, and low fabrication costs. This review discusses techniques for quantifying ferroelectric figures of merit, explores the ferroelectricity in hybrid perovskites, and provides examples of their applications in solar cells, LEDs, and X-ray detectors. The conclusions highlight the potential of low-dimensional hybrid perovskites, but acknowledge that they have yet to achieve the same ferroelectric figures of merit and thermal stability as conventional oxide perovskite ferroelectric materials.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Weixin He et al.
Summary: It is discovered that the polar axis in ferroelectric 2D Dion-Jacobson (DJ) perovskites can be tuned from the out-of-plane (OOP) to the in-plane (IP) direction by substituting the iodide with bromide in the lead halide layer.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Cheng-Dong Liu et al.
Summary: A 1D lead-free perovskite ferroelectric HDA-BiI5-based photodetector with green, self-powered, flexible, and tunable features is reported in this study. The device exhibits a spectrally selective linear polarized light response through a unique linear dichroic conversion behavior. It achieves orthogonal reverse of polarization-sensitive photocurrent and high detectivity, providing a pathway for the design of future integratable polarization-sensitive photodetectors.
ACS MATERIALS LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Fei Xue et al.
Summary: With the advancement of Internet of Things and big data, there is a growing need for high-performance memory hardware. 2D materials, with their excellent electronic properties, offer a promising solution for developing advanced memory device arrays. In recent years, there has been rapid development in 2D-material-based memory devices, which can be used for brain-inspired computing and sensing. This article provides a comprehensive overview of the latest research and discusses future research directions.
ADVANCED MATERIALS
(2022)
Article
Optics
Lifu Zhang et al.
Summary: Researchers demonstrate a persistent spin helix in an organic-inorganic hybrid ferroelectric halide perovskite. They show that the spin-polarized band structure can be switched via an intrinsic ferroelectric field. This discovery has the potential to resolve the control-relaxation dilemma in spintronic devices.
Article
Multidisciplinary Sciences
Lukas Rogee et al.
Summary: We have successfully demonstrated unexpected out-of-plane ferroelectric and piezoelectric properties in MoS2/WS2 heterobilayers, which can be utilized in ultrathin ferro- and piezoelectronic devices.
Article
Chemistry, Multidisciplinary
Wuqian Guo et al.
Summary: This article introduces a new type of semiconductor material with ferroelectric properties, which has high polarization and superior semiconductor performance, and has potential applications in self-driven polarized light detection and other fields.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Le-Ping Miao et al.
Summary: This research reports a microporous structural molecular rotor ferroelectric material with fast switching spontaneous polarization (P-s), high operational performance, and stability, which shows potential application in the next-generation non-volatile memory devices.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Chang-Chun Fan et al.
Summary: A pair of 2D chiral perovskite ferroelectrics with enhanced CPL detection performance have been reported in this study, achieved through the chirality-transfer-induced chiral&polar ferroelectric phase.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Chang-Chun Fan et al.
Summary: In this study, three 3D metal halide perovskite analogs with balanced high stability and isotropic photoresponse were constructed and characterized. These analogs exhibited high photocurrent on/off ratios and ultra-long device stability, making them promising candidates for various optoelectronic applications.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Review
Chemistry, Physical
Puneet Siwach et al.
Summary: Oxide ferroelectric materials and organic-inorganic halide perovskite materials with net electric polarization have potential applications in the field of photovoltaics, particularly in solar cells. These materials provide opportunities to improve conversion efficiency.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Chemistry, Multidisciplinary
Hsin-Ping Wang et al.
Summary: Metal halide perovskites (MHPs) have gained popularity in research due to their ease of synthesis, excellent optical and optoelectronic properties, and high efficiency in corresponding devices. Low-dimensional MHPs have attracted significant interest, with a focus on synthesis, properties, and photodetection applications. Recent advances and strategies for improving performance and stability in perovskite photodetectors are discussed with a perspective on future developments.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Han-Yue Zhang et al.
Summary: The phosphonium-based 2D HOIP ferroelectric (EATMP)PbBr4 has been discovered with high Curie temperature and electrostrictive coefficient, showing excellent potential for applications in future smart devices.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Yuzhong Hu et al.
Summary: The study demonstrates a large shear strain in the hybrid ferroelectric C6H5N(CH3)(3)CdCl3, achieving up to 21.5% strain, two orders of magnitude greater than traditional piezoelectrics. This is attributed to organic molecules preventing 180 degrees polarization switching, showing potential for lightweight and high-energy-density devices.
Article
Chemistry, Multidisciplinary
Yaqing Shen et al.
Summary: In the race to fabricate solid-state nano/microelectronic devices using 2D layered materials, memristors show higher tolerance to defects compared to transistors and memtransistors, making them easier to achieve high yield and low variability.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Anupam Giri et al.
Summary: This study presents a rapid and scalable method for synthesizing ferromagnetic thin films of ternary metal chalcogenides, with revealed magnetic anisotropy directions. It not only provides an opportunity for device fabrication without transfer for controlling charge and spin degrees of freedom in 2D ferromagnetic semiconductors, but also overcomes the challenge of synthesizing large-area 2D ternary metal chalcogenide thin films.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Yong Ai et al.
Summary: Molecular ferroelectrics are widely used due to their excellent properties, but designing and optimizing them effectively remains a significant challenge. Targeted design and optimization can be achieved through H/F substitution, providing a blueprint for discovering new functionalities.
TRENDS IN CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Le-Ping Miao et al.
Summary: A molecular rotor crystal was reported to exhibit a unique structural phase transition-induced ferroelasticity with unconventional inverse temperature symmetry breaking (ITSB). The crystal undergoes a phase transition at 263 K, driven by unequal motions of the peripheral tert-butyl rotators and anisotropic steric repulsion among the molecules, resulting in a coordinated molecular movement. This study may pave the way for designing and exploring new types of dynamic functional materials.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Xiao-Li Xu et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Nanoscience & Nanotechnology
Zhun Liu et al.
ADVANCED ELECTRONIC MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
In-Hyeok Park et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Review
Chemistry, Multidisciplinary
Lingling Mao et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Multidisciplinary
Lingling Mao et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Lingling Mao et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Qiang Pan et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Multidisciplinary Sciences
Wenjun Ding et al.
NATURE COMMUNICATIONS
(2017)
Article
Multidisciplinary Sciences
Kai Chang et al.
Article
Chemistry, Multidisciplinary
A. Belianinov et al.
Article
Chemistry, Multidisciplinary
Emma R. Dohner et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2014)
Review
Chemistry, Multidisciplinary
Wen Zhang et al.
Article
Multidisciplinary Sciences
H. Lu et al.
Article
Chemistry, Multidisciplinary
Akihiro Kojima et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2009)
