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Lead-Free Halide Perovskite Nanocrystals for Light-Emitting Diodes

MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Investigating the interfacial properties of halide perovskite/TiOx heterostructures for versatile photocatalytic reactions under sunlight

Tae Hyung Kim et al.

Summary: Solvent-free reduction of CO2 using amorphous TiOx with embedded colloidal perovskite nanocrystals (PNCs) has been achieved by carrying out hydrolysis of titanium butoxide (TBOT) on the PNC surface. The photoexcited electrons are transferred from PNCs to TBOT, enabling photocatalytic reactions using TiOx under visible-light excitation. Efficient visible-light-driven photocatalytic reactions at PNC/TiOx interfaces, with a CO production rate of 30.43 µmol g(-1) h(-1) and accelerated degradation of organic pollutants under natural sunlight, have been demonstrated.

NANOSCALE (2023)

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Article Materials Science, Multidisciplinary

Zn (II)-Doped Cesium Copper Halide Nanocrystals with High Quantum Yield and Colloidal Stability for High-Resolution X-Ray Imaging

Kang Qu et al.

Summary: By adjusting the doping concentration and morphology uniformity, researchers obtained monodisperse nanocrystals with small grain size and colloidal stability. The optimal doping concentration resulted in a photoluminescence quantum yield of 92.8%, a 28.5% improvement compared to nondoped nanocrystals. Density functional theory calculations revealed that the Zn2+ dopant occupied Cu sites and the I-rich condition suppressed the formation of I vacancy, leading to an enrichment of excited electron density at the band-edge and enhancing self-trapped exciton emission. Additionally, high luminescence performance and flexible X-ray scintillator films were prepared using Zn2+-doped Cs3Cu2I5 nanocrystals, with a spatial resolution of up to 15.7 lp mm(-1). This work provides an effective strategy for the development of environmentally friendly, low-cost, and efficient blue-emitting 0D all-inorganic metal halides, as well as demonstrates their great potential for high-performance flexible lead-free and low-toxicity X-ray detector applications.

ADVANCED OPTICAL MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Two-Dimensional Cs2AgInxBi1-xCl6 Alloyed Double Perovskite Nanoplatelets for Solution-Processed Light-Emitting Diodes

Zhenyang Liu et al.

Summary: This study demonstrates the synthesis of 2D Cs2AgInxBi1-xCl6 alloyed double perovskite nanoplatelets with controlled morphology and composition. The obtained NPLs show unique optical properties and good stability, making them suitable for solution-processing in low-cost device manufacturing. Solution-processed light-emitting diodes using Cs2AgIn0.9Bi0.1Cl6 alloyed double perovskite NPLs as the emitting component exhibit good performance.

ADVANCED MATERIALS (2023)

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Review Chemistry, Multidisciplinary

Advances in Solution-Processed OLEDs and their Prospects for Use in Displays

Joo Yoon Woo et al.

Summary: This review summarizes the challenges and progress in the development of solution-processed organic light-emitting diodes (SOLEDs) in both industry and academia. Solution processing offers advantages like material efficiency, low-cost production, and scalability. However, there are complications related to solvent resistance and suitable solution-processable materials, ultimately leading to less efficient and shorter-lived SOLEDs compared to those fabricated by thermal evaporation. This review highlights the current status of SOLED development and presents research guidelines to overcome these limitations and achieve efficient, long-lasting, and commercially-viable SOLEDs.

ADVANCED MATERIALS (2023)

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Review Chemistry, Multidisciplinary

Lead-Free Metal Halide Perovskite Nanocrystals: From Fundamentals to Applications

Thais Adriany de Souza Carvalho et al.

Summary: Lead halide perovskite nanocrystals show promising properties in terms of optical performance and solar cell efficiency. However, stability, mass production, and lead toxicity still need to be addressed. Recent studies have focused on replacing lead with less toxic cations, such as Sn, Ge, Sb, and Bi, resulting in a wide range of Pb-free perovskite and metal halide nanostructures.

CHEMISTRY-A EUROPEAN JOURNAL (2023)

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Article Chemistry, Multidisciplinary

Stable dual cations perovskite nanocrystals as absorbers for perovskite solar cells with efficiencies exceeding 24%

Zhiqing Xie et al.

Summary: FA(1 - X)Cs(X)PbI(3) (formamidinium [FA]; cesium [Cs]; lead [Pb]; and iodine [I]) perovskites are promising candidates in perovskite solar cells (PSCs) for their superior optoelectronic properties, tunable bandgap, and high thermal stability. This study successfully synthesized a dual cation perovskite precursor Cs(0.05)FA(0.95)PbI(3) via a simple one-step solution process under ambient conditions, and achieved a high efficiency of 22.10% and long-term stability in PSCs.

BULLETIN OF THE KOREAN CHEMICAL SOCIETY (2023)

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Article Chemistry, Physical

Eu3+, Tb3+ doping induced tunable luminescence of Cs2AgInCl6 double perovskite nanocrystals and its mechanism

Endian Cui et al.

Summary: Incorporating Eu3+ and Tb3+ into Cs2AgInCl6 nanocrystals can enhance their structural stability and optical properties, resulting in a more stable cubic double perovskite structure and increased optical band gap. By controlling the doping concentration of Eu3+ or Tb3+, the emitted color of the nanocrystals can be adjusted.

APPLIED SURFACE SCIENCE (2023)

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Article Engineering, Electrical & Electronic

Metal Ion-Incorporated Lead-Free Perovskites toward Broadband Photodetectors

Junhua Shen et al.

Summary: Metal halide perovskites, particularly Cs2SnI6, have garnered significant attention in optoelectronics due to their superior performance. However, the 2D form of Cs2SnI6 has limited performance compared to lead-based perovskites. To improve this, the doping or passivation of perovskites with aliovalent metal ions (nickel and zinc) is proposed. The introduction of these ions enhances photoluminescence and reduces surface trap/defect density, resulting in Cs2SnI6 perovskites with improved broadband detection, responsivity, and detectivity.

ACS APPLIED ELECTRONIC MATERIALS (2023)

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Article Nanoscience & Nanotechnology

Two-Step Crystallization for Low-Oxidation Tin-Based Perovskite Light-Emitting Diodes

Yu-Hong Cheng et al.

Summary: Metal halide perovskites have excellent optoelectronic and semiconducting properties but are often associated with environmental concerns due to the toxicity of lead. This study introduces a two-step crystallization method to improve the performance of lead-free PEA(2)SnI(4) perovskite. The resulting film exhibits narrowed emission and reduced Sn4+ content, leading to a higher external quantum efficiency in the resulting LED.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Engineering, Environmental

Water-induced crystal phase transformation of stable lead-free Cu-based perovskite nanocrystals prepared by one-pot method

Shuaidong Liu et al.

Summary: The facile one-pot method for synthesizing Cs3Cu2X5 NCs with superior optical performance shows great potential in the field of optoelectronics, despite the hinderances from complex preparation methods.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Inorganic & Nuclear

Reversible Transformation between Cs3Cu2I5 and CsCu2I3 Perovskite Derivatives and Its Anticounterfeiting Application

Xiangtong Zhang et al.

Summary: Researchers have developed a simple method for synthesizing blue-emissive and yellow-emissive copper halide perovskite derivatives, which are lead-free and exhibit excellent photoelectric properties. Triggered by ethanol or CsI, a reversible chemical transformation occurs between these derivatives, which can be used for anti-counterfeiting purposes.

INORGANIC CHEMISTRY (2022)

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Article Optics

Phase control in the synthesis of cesium copper iodide compounds for their photoluminescence and radioluminescence study

Ziheng Zhao et al.

Summary: Lead-free metal halide perovskites, particularly cesium copper iodide compounds, are being studied for their non-toxicity, excellent optical properties, environmental stability, and cost-effectiveness. By using an antisolvent assisted crystallization method, CsCu2I3 and Cs3Cu2I5 were synthesized with different emission peaks. UV-pumped LEDs were successfully created using these materials, showing potential applications in lighting and X-ray detection devices.

JOURNAL OF LUMINESCENCE (2022)

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Article Chemistry, Multidisciplinary

Moisture-Assisted near-UV Emission Enhancement of Lead-Free Cs4CuIn2Cl12 Double Perovskite Nanocrystals

Maning Liu et al.

Summary: This study presents a method for the synthesis of lead-free Cs4CuIn2Cl12 nanocrystals through moisture-assisted approach, showing advantages in PL quantum yield, morphology, and photoluminescence properties. It paves the way for further research on novel lead-free halide perovskite nanocrystals for various applications.

NANO LETTERS (2022)

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Article Chemistry, Multidisciplinary

Red-emissive nanocrystals of Cs4MnxCd1-xSb2Cl12 layered perovskites

Emanuela Sartori et al.

Summary: Layered double perovskites are promising materials for optoelectronic applications, with potential for increased photoluminescence quantum yield through post-synthesis treatment.

NANOSCALE (2022)

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Article Chemistry, Multidisciplinary

Electrical and chemical properties of vacancy-ordered lead free layered double perovskite nanoparticles

Amal Sawahreh et al.

Summary: In this study, vacancy-ordered lead-free layered double perovskite (LDP) nanoparticles were synthesized and the composition of the particles was controlled by changing the Cd/Mn ratio. The structure and composition of these nanoparticles were investigated using advanced microscopy techniques. The electronic properties of these nanoparticles were also studied using spectroscopy methods.

NANOSCALE (2022)

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Article Chemistry, Multidisciplinary

Lead-free Double Perovskite Cs2AgIn0.9Bi0.1Cl6 Quantum Dots for White Light-Emitting Diodes

Yuqing Zhang et al.

Summary: A novel lead-free double perovskite quantum dots were successfully fabricated for white light-emitting diodes with excellent optoelectronic performance and stability. The device exhibits good luminous properties and stability, making it suitable for future lighting applications.

ADVANCED SCIENCE (2022)

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Article Chemistry, Multidisciplinary

In Situ Inorganic Ligand Replenishment Enables Bandgap Stability in Mixed-Halide Perovskite Quantum Dot Solids

Ya-Kun Wang et al.

Summary: The issue of instability in mixed-halide perovskites (MHPs) has been addressed by introducing inorganic ligands, resulting in improved colloidal and photo-stability. The new materials exhibit high efficiency and narrow emission spectrum in light-emitting diodes (LEDs), with enhanced operating stability.

ADVANCED MATERIALS (2022)

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Article Chemistry, Physical

Unraveling the Phase Transition and Luminescence Tuning of Pb-Free Cs-Cu-I Perovskites Enabled by Reaction Temperature and Polar Solvent

Wenrong Cui et al.

Summary: This study synthesized Pb-free ternary Cs-Cu-I nanocrystals and microrods and found that the emission color and morphology transition can be controlled by manipulating the reaction temperature. It is worth noting that the Cs-Cu-I nanocrystals have self-assembly ability and exhibit rapid phase transition and luminescence tuning. This research is of great significance for understanding the phase transition process in Cu-based perovskites and provides a fluorescence material with fast switching characteristics for anticounterfeiting applications.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2022)

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Article Multidisciplinary Sciences

Ultra-bright, efficient and stable perovskite light-emitting diodes

Joo Sung Kim et al.

Summary: This study reports the development of ultra-bright, efficient, and stable light-emitting diodes (PeLEDs) made of core/shell perovskite nanocrystals. The nanocrystals, obtained through in situ reaction of benzylphosphonic acid with polycrystalline perovskite films, demonstrate strong carrier confinement and maintain good charge-transport properties.

NATURE (2022)

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Review Chemistry, Physical

3D and 2D Metal Halide Perovskites for Blue Light-Emitting Diodes

Min-Ho Park

Summary: Metal halide perovskites (MHPs) are promising as next-generation light emitters due to their low cost, simple synthesis, and wide color range. Strategies to improve the efficiency of blue MHP emitters have been actively studied for commercialization in full-color displays.

MATERIALS (2022)

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Article Chemistry, Physical

Deep-blue emissive Cs3Cu2I5 perovskites nanocrystals with 96.6% quantum yield via InI3-assisted synthesis for light-emitting device and fluorescent ink applications

Fei Gao et al.

Summary: Lead-free Cs3Cu2I5 nanocrystals with deep-blue emission and high photoluminescence quantum yield are synthesized by adding InI3 precursor. The broad-band blue emission originates from self-trapped excitons formed in Cs3Cu2I5 under light excitation. These nanocrystals exhibit good stability against various environmental factors and can be used in light-emitting devices and fluorescent ink with anti-counterfeiting features.

NANO ENERGY (2022)

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Article Environmental Sciences

Activated recovery of PVC from contaminated waste extension cord-cable using a weak acid

Chunmiao Jia et al.

Summary: A microwave-assisted extraction process was developed to remove toxic metals from plastic e-waste, achieving both high extraction efficiency and significant plastic recovery.

CHEMOSPHERE (2022)

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Article Materials Science, Multidisciplinary

First-principles calculations to investigate structural, electronic, thermoelectric, and optical properties of heavy thallium perovskite TlPbX3 (X = Cl, Br, I)

Rahul Yadav et al.

Summary: By employing the FP-LAPW method in DFT technique, the mechanical stability, electronic behaviour, optical response, and thermoelectric behaviour of Thallium based halide perovskites TlPbX3 (X = Cl, Br, I) have been theoretically investigated for the first time. The results show that these compounds have good structural stability and exhibit semiconductor properties.

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Electronic Structures and Photoelectric Properties in Cs3Sb2X9 (X = Cl, Br, or I) under High Pressure: A First Principles Study

Yanwen Wu et al.

Summary: In this study, the structural and photoelectric properties of Cs3Sb2X9 under high pressure were theoretically investigated using density functional theory. The results showed that the ideal bandgap for Cs3Sb2X9 can be achieved by applying high pressure, and the change in bandgap is caused by the shrinkage of the Sb-X long bond. Furthermore, Cs3Sb2Br9 and Cs3Sb2I9 exhibited metallicity at specific high pressures, and the absorption spectra showed a redshift.

NANOMATERIALS (2022)

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Article Materials Science, Multidisciplinary

Lead-free tin-based perovskites nanocrystals for high-performance self-driven bulk-heterojunction photodetectors

M. Sulaman et al.

Summary: Metal-halide perovskite-based photodetectors are currently the most rapidly emerging technology in the field of research and development. Lead-free inorganic perovskites have shown potential as an alternative material for optoelectronic devices, but their high trap state density and surface non-uniformity have limited their performance. This work presents a method for surface-passivation of lead-free perovskites with poly (3-hexylthiophene) to improve the performance of photodetectors.

MATERIALS TODAY PHYSICS (2022)

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Article Engineering, Environmental

Mn2+ ions doped lead-free zero-dimensional K3SbCl6 perovskite nanocrystals towards white light emitting diodes

He Shao et al.

Summary: This study developed lead-free 0D perovskite NCs K3SbCl6 and successfully achieved red and white emission, offering new opportunities for future applications in the field of LED lighting and lasers.

CHEMICAL ENGINEERING JOURNAL (2021)

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Review Chemistry, Physical

Metal halide perovskites for light-emitting diodes

Xiao-Ke Liu et al.

Summary: Perovskite emitters have shown promising optoelectronic properties suitable for light-emitting applications, with rapid progress in the development of PeLEDs reaching external quantum efficiencies of over 20%. The key focus is on improving the performance, stability, and reducing toxicity hazards of PeLEDs.

NATURE MATERIALS (2021)

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Article Nanoscience & Nanotechnology

Uncovering the Role of Trioctylphosphine on Colloidal and Emission Stability of Sb-Alloyed Cs2NaInCl6 Double Perovskite Nanocrystals

Razi Ahmad et al.

Summary: The doping and compositional tuning of Cs(2)AInCl(6) (A = Ag, Na) double perovskite nanocrystals is a promising strategy for developing light-emitting sources for solution-processed optoelectronic devices. A novel synthesis and purification method mediated by trioctylphosphine has been reported for antimony-alloyed Cs2NaInCl6 PNCs, resulting in excellent stability and optical features. This approach based on dual cationic ligand passivation of double PNCs opens up opportunities for achieving higher stability and superior optical properties in other systems.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Review Nanoscience & Nanotechnology

Lead-Free Perovskite Materials for Solar Cells

Minghao Wang et al.

Summary: The toxicity issue of lead-based halide perovskites hinders their large-scale commercial applications in solar cells. Therefore, non- or low-toxic perovskite materials are being explored for development of environmentally friendly lead-free perovskite solar cells. More new lead-free perovskite materials with tunable optical and electrical properties are urgently required for highly efficient and stable lead-free perovskite solar cells.

NANO-MICRO LETTERS (2021)

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Review Chemistry, Multidisciplinary

Lead-Free Halide Perovskites for Light Emission: Recent Advances and Perspectives

Xin Li et al.

Summary: Lead-based halide perovskites have excellent properties for light-emitting applications but face challenges due to the toxic element lead, highlighting the urgency in developing lead-free alternatives. Recent advances focus on the synthesis, properties, and applications of lead-free halide perovskite materials, particularly in the field of optoelectronics.

ADVANCED SCIENCE (2021)

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Article Nanoscience & Nanotechnology

Excitation Management of Lead-Free Perovskite Nanocrystals Through Doping

Wei Zheng et al.

Summary: By synthesizing Cs2AgInCl6 nanocrystals in an inverse microemulsion system and co-doping Bi and Na ions, the quantum yield of photoluminescence was significantly improved and the parity-forbidden transition was relaxed, enabling the preparation of bright phosphors.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Engineering, Environmental

Highly-stable tin-based perovskite nanocrystals produced by passivation and coating of gelatin

Bin Lyu et al.

Summary: This study successfully developed an effective approach using gelatin for interfacial passivation and coating to prepare highly-stable all-inorganic tin-based perovskite nanocrystals, retaining 77.46% of photoluminescence intensity even after dispersion in water for 3 days. Gelatin forms a rich ligand state on the nanocrystal surface, providing excellent anti-mildew properties and promoting the stability and sustainable development of perovskite devices.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Review Chemistry, Multidisciplinary

Lead-Free Halide Double Perovskite Nanocrystals for Light-Emitting Applications: Strategies for Boosting Efficiency and Stability

Huidong Tang et al.

Summary: Lead-free HDP nanocrystals have promising optoelectronic properties, but face challenges for LED applications due to intrinsic defects. Strategies such as synthetic methods, ligand passivation, and metal doping/alloying are being explored to improve efficiency and stability of HDP nanocrystals.

ADVANCED SCIENCE (2021)

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Article Chemistry, Physical

The Role Silver Nanoparticles Plays in Silver-Based Double-Perovskite Nanocrystals

Shai Levy et al.

Summary: Lead-free double perovskites are being studied as alternatives to lead halide perovskites in optoelectronic applications, with a focus on the role of metallic silver nanoparticles in crystal growth. The nucleation of perovskite nanocrystals is shown to occur on preexisting silver seeds, with evidence of charge transfer between the perovskite and silver nanoparticles leading to modified optical properties. Understanding and controlling the reduction of Ag+ at all synthetic stages is critical for achieving stability and functionality in silver-based lead-free perovskite nanocrystals.

CHEMISTRY OF MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Theory-Guided Synthesis of Highly Luminescent Colloidal Cesium Tin Halide Perovskite Nanocrystals

Qi Liu et al.

Summary: Through density functional theory calculations and molecular dynamics simulations, a theory-guided general synthetic concept for highly luminescent CsSnX3 nanocrystals has been developed. A colloidal synthesis strategy has been established to produce high-quality CsSnX3 nanocrystals under different reaction conditions, which may stimulate intense efforts on tin-based perovskite nanocrystals for potential applications in high-performance optoelectronic devices.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Multidisciplinary

Manganese Doping Promotes the Synthesis of Bismuth-based Perovskite Nanocrystals While Tuning Their Band Structures

Maning Liu et al.

Summary: The doping of halide perovskite nanocrystals with manganese cations has shown enhanced stability, novel optical properties, and modulated charge carrier dynamics. Mn doping promotes a more efficient synthetic route and inhibits impurity phase formation, while also deepening the valence band level of the host NCs. Manganese-doped NCs solar cells exhibit higher open-circuit voltage and longer electron lifetime compared to undoped perovskite NCs, opening new insights for potential applications.

SMALL (2021)

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Article Chemistry, Physical

Deterministic Light Yield, Fast Scintillation, and Microcolumn Structures in Lead Halide Perovskite Nanocrystals

Francesco Maddalena et al.

Summary: This study investigates the potential of lead halide perovskite nanocrystals in X-ray imaging applications, with CsPbBr3 NCs showing the best performance and being particularly suitable for fast-timing applications or particle detectors in high-energy physics.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

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Review Physics, Applied

Recent Advances and Opportunities of Lead-Free Perovskite Nanocrystal for Optoelectronic Application

Fei Zhang et al.

Summary: This article provides a comprehensive overview of lead-free perovskite nanocrystals (NCs) with a focus on their design routes, morphologies, optoelectronic properties, and environmental stability. It also discusses the initial achievements of lead-free perovskite NCs in various optoelectronic applications, as well as the current challenges and potential development opportunities in this rapidly advancing field.

ENERGY MATERIAL ADVANCES (2021)

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Article Materials Science, Multidisciplinary

Efficient energy transfer in Cs4MnxCd1-xSb2Cl12 layered perovskites and anomalously responsive photodetectors

Chengyu Peng et al.

Summary: The study revealed an efficient energy transfer process in Cs4MnxCd1-xSb2Cl12 layered perovskites, dominating the luminescence process. Additionally, a photodetector based on a Cs4Mn0.25Cd0.75Sb2Cl12 single crystal demonstrated an anomalously negative photo-response collapse, attributed to charge carrier trapping by light-induced trap states.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

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Review Chemistry, Physical

The impact of ligands on the synthesis and application of metal halide perovskite nanocrystals

Fatima Haydous et al.

Summary: Metal halide perovskites are attractive materials for solar cells and optoelectronic devices due to their impressive properties. Perovskite nanocrystals have high quantum yield and tunable emission wavelength, making them ideal candidates for applications.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Multidisciplinary

Photophysics in Cs3Cu2I5 and CsCu2I3

Yangshuqin Hui et al.

Summary: Cs3Cu2I5 and CsCu2I3 are promising semiconductors for next-generation optoelectronic devices, emitting broad-spectrum light with high photoluminescence quantum efficiency. Their low-dimensional electronic structure and soft lattice contribute to their unique properties. The broad-spectrum luminescence mechanism involves self-trapped exciton luminescence and excited-state structure reorganization.

MATERIALS CHEMISTRY FRONTIERS (2021)

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Article Materials Science, Multidisciplinary

Colloidal synthesis and charge carrier dynamics of Cs4Cd1-xCuxSb2Cl12 (0 ≤ x ≤ 1) layered double perovskite nanocrystals

Tong Cai et al.

Summary: Layered double perovskites (LDPs) have emerged as a new family of perovskite materials that provide a solution to the toxicity and instability issues of lead-based metal halide perovskites. By tuning the stoichiometry of metal precursors, a series of Cs4Cd1-xCuxSb2Cl12 LDP NCs with different properties can be synthesized. This work opens up possibilities for further exploration and application of LDP-based materials.

MATTER (2021)

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Article Chemistry, Multidisciplinary

Room temperature synthesis of low-dimensional rubidium copper halide colloidal nanocrystals with near unity photoluminescence quantum yield

Parth Vashishtha et al.

Summary: Non-toxic Rb2CuX3 colloidal nanocrystals with high thermal stability have been synthesized for optoelectronic applications. The one-dimensional crystal structure and PL emission peaks of these nanocrystals make them promising in lighting technology, water sterilisation, and air purification. Their cost-effective and scalable synthesis method under ambient conditions further enhances their commercial potential.

NANOSCALE (2021)

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Review Chemistry, Physical

From Pb to Bi: A Promising Family of Pb-Free Optoelectronic Materials and Devices

Cuncun Wu et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Physical

Electrically-Driven Violet Light-Emitting Devices Based on Highly Stable Lead-Free Perovskite Cs3Sb2Br9 Quantum Dots

Zhuangzhuang Ma et al.

ACS ENERGY LETTERS (2020)

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Article Chemistry, Physical

Chemical Diversity in Lead-Free, Layered Double Perovskites: A Combined Experimental and Computational Approach

Brenda Vargas et al.

CHEMISTRY OF MATERIALS (2020)

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Biological impact of lead from halide perovskites reveals the risk of introducing a safe threshold

Junming Li et al.

NATURE COMMUNICATIONS (2020)

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Emission Trend of Multiple Self-Trapped Excitons in Luminescent 1D Copper Halides

Mao-Hua Du

ACS ENERGY LETTERS (2020)

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Article Energy & Fuels

Ligand-assisted cation-exchange engineering for high-efficiency colloidal Cs1-xFAxPbI3 quantum dot solar cells with reduced phase segregation

Mengmeng Hao et al.

NATURE ENERGY (2020)

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Stable Yellow Light-Emitting Devices Based on Ternary Copper Halides with Broadband Emissive Self-Trapped Excitons

Zhuangzhuang Ma et al.

ACS NANO (2020)

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Article Chemistry, Physical

Cs4Cd1-xMnxBi2Cl12-A Vacancy-Ordered Halide Perovskite Phosphor with High-Efficiency Orange-Red Emission

Noah P. Holzapfel et al.

CHEMISTRY OF MATERIALS (2020)

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Photophysics in Cs3Cu2X5 (X = Cl, Br, or I): Highly Luminescent Self-Trapped Excitons from Local Structure Symmetrization

Linyuan Lian et al.

CHEMISTRY OF MATERIALS (2020)

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Hot-injection and ultrasonic irradiation syntheses of Cs2SnI6 quantum dot using Sn long-chain amino-complex

Tsuguo Koyanagi et al.

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Colloidal Synthesis of Ternary Copper Halide Nanocrystals for High-Efficiency Deep-Blue Light-Emitting Diodes with a Half-Lifetime above 100 h

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NANO LETTERS (2020)

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Lead-Free Perovskite Variant Solid Solutions Cs2Sn1-xTexCl6: Bright Luminescence and High Anti-Water Stability

Zhifang Tan et al.

ADVANCED MATERIALS (2020)

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Room Temperature Synthesis of Stable, Printable Cs3Cu2X5 (X = I, Br/I, Br, Br/Cl, Cl) Colloidal Nanocrystals with Near-Unity Quantum Yield Green Emitters (X = Cl)

Yanyan Li et al.

CHEMISTRY OF MATERIALS (2020)

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Bright Blue and Green Luminescence of Sb(III) in Double Perovskite Cs2MInCl6 (M = Na, K) Matrices

Agnieszka Noculak et al.

CHEMISTRY OF MATERIALS (2020)

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Article Chemistry, Physical

K2CuX3 (X = Cl, Br): All-Inorganic Lead-Free Blue Emitters with Near-Unity Photoluminescence Quantum Yield

Tielyr D. Creason et al.

CHEMISTRY OF MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Lead-Free Cs4CuSb2Cl12 Layered Double Perovskite Nanocrystals

Tong Cai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Chemistry, Physical

Enhanced Luminescence and Mechanistic Studies on Layered Double-Perovskite Phosphors: Cs4Cd1-xMnxBi2Cl12

Brenda Vargas et al.

CHEMISTRY OF MATERIALS (2020)

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Article Optics

Effects of in-situ annealing on the electroluminescence performance of the Sn-based perovskite light-emitting diodes prepared by thermal evaporation

Haichuan Mu et al.

JOURNAL OF LUMINESCENCE (2020)

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