Low-dimensional phase suppression and defect passivation of quasi-2D perovskites for efficient electroluminescence and low-threshold amplified spontaneous emission

Article Chemistry, Multidisciplinary

Interfacial Potassium-Guided Grain Growth for Efficient Deep-Blue Perovskite Light-Emitting Diodes

Yang Shen et al.

Summary: This research proposes a novel crystallization strategy and rational interfacial engineering to enhance deep-blue emission in perovskite grains, resulting in significantly improved device performance for PeLEDs.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Physical

Highly Luminescent and Stable CsPbI3 Perovskite Nanocrystals with Sodium Dodecyl Sulfate Ligand Passivation for Red-Light-Emitting Diodes

Jibin Zhang et al.

Summary: This study introduces stable and highly luminescent black-phase CsPbI3 nanocrystals passivated by novel ligands of sodium dodecyl sulfate (SDS), which exhibit significantly reduced surface defects, enhanced stability, and superior photoluminescence efficiency. Red perovskite light-emitting diodes based on the SDS-CsPbI3 nanocrystals achieve an external quantum efficiency of 8.4%, showing a 4-fold improvement compared to devices using oleic acid-modified CsPbI3 nanocrystals.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2021)

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Article Chemistry, Multidisciplinary

Perovskite Light-Emitting Diodes with External Quantum Efficiency Exceeding 22% via Small-Molecule Passivation

Zema Chu et al.

Summary: The functional additive ethoxylated trimethylolpropane triacrylate (ETPTA) can effectively reduce defects in perovskite films, improving the performance of Perovskite light-emitting diodes (PeLEDs) to achieve high external quantum efficiency. These findings provide a simple and effective strategy for producing highly efficient perovskite polycrystalline films and their optoelectronics devices.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Domain Controlling by Compound Additive toward Highly Efficient Quasi-2D Perovskite Light-Emitting Diodes

Dezhong Zhang et al.

Summary: In this study, the crystallization process of quasi-2D perovskite films was successfully regulated by introducing a composite additive of ZrO2 nanoparticles and Cryptand complexant, resulting in narrowed n domains distribution and high-performance PeLEDs. The strategy of domain controlling by compound additive provides a powerful way to develop high-performance quasi-2D perovskite optoelectrical devices.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Stable and Efficient Blue-Emitting CsPbBr3 Nanoplatelets with Potassium Bromide Surface Passivation

Hao Lin et al.

Summary: This study reports a method using potassium bromide to surface passivate blue emissive perovskite nano-structures, successfully enhancing emission efficiency and stability. The passivated nanoplatelets show excellent photo- and thermal-stabilities even under intense irradiation and elevated temperature, and all-perovskite white light-emitting diodes were successfully constructed.

SMALL (2021)

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Article Materials Science, Multidisciplinary

Boosting the performance of CsPbBr3-based perovskite light-emitting diodes via constructing nanocomposite emissive layers

Guangrong Jin et al.

Summary: The formation of the n=1 phase in CsPbBr3/Cs4PbBr6 nanocomposite films is suppressed by introducing excess CsBr, leading to reduced trap states density and nonradiative losses, contributing to the enhancement of PeLEDs performance.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

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Article Optics

Triplet management for efficient perovskite light-emitting diodes

Chuanjiang Qin et al.

NATURE PHOTONICS (2020)

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Article Chemistry, Multidisciplinary

Synergistic Effect of Dual Ligands on Stable Blue Quasi-2D Perovskite Light-Emitting Diodes

Yan Jin et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Efficient and Spectrally Stable Blue Perovskite Light-Emitting Diodes Based on Potassium Passivated Nanocrystals

Fei Yang et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Efficient Energy Funneling in Quasi-2D Perovskites: From Light Emission to Lasing

Lei Lei et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

High-Performance Perovskite Light-Emitting Diode with Enhanced Operational Stability Using Lithium Halide Passivation

Tian Wu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Multidisciplinary

Potassium Bromide Surface Passivation on CsPbI3-xBrx Nanocrystals for Efficient and Stable Pure Red Perovskite Light-Emitting Diodes

Jun-Nan Yang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Chemistry, Physical

Chlorine Vacancy Passivation in Mixed Halide Perovskite Quantum Dots by Organic Pseudohalides Enables Efficient Rec. 2020 Blue Light-Emitting Diodes

Xiaopeng Zheng et al.

ACS ENERGY LETTERS (2020)

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Article Chemistry, Multidisciplinary

Co-Interlayer Engineering toward Efficient Green Quasi-Two-Dimensional Perovskite Light-Emitting Diodes

Meng Fanyuan et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Materials Science, Multidisciplinary

Mixed Spacer Cation Stabilization of Blue-Emitting n=2 Ruddlesden-Popper Organic-Inorganic Halide Perovskite Films

Tik Lun Leung et al.

ADVANCED OPTICAL MATERIALS (2020)

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Article Multidisciplinary Sciences

Efficient, stable silicon tandem cells enabled by anion-engineered wide-bandgap perovskites

Daehan Kim et al.

SCIENCE (2020)

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Article Chemistry, Physical

Stabilizing the Electroluminescence of Halide Perovskites with Potassium Passivation

Anil Kanwat et al.

ACS ENERGY LETTERS (2020)

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Article Chemistry, Multidisciplinary

Rearranging Low-Dimensional Phase Distribution of Quasi-2D Perovskites for Efficient Sky-Blue Perovskite Light-Emitting Diodes

Peiyuan Pang et al.

ACS NANO (2020)

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Article Chemistry, Multidisciplinary

High Performance Quasi-2D Perovskite Sky-Blue Light-Emitting Diodes Using a Dual-Ligand Strategy

Fuzhi Wang et al.

SMALL (2020)

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Article Multidisciplinary Sciences

Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells

Haizhou Lu et al.

SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Improved current efficiency of quasi-2D multi-cation perovskite light-emitting diodes: the effect of Cs and K

Guang Yang et al.

NANOSCALE (2020)

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Article Materials Science, Multidisciplinary

Amplified Spontaneous Emission Realized by Cogrowing Large/Small Grains with Self-Passivating Defects and Aligning Transition Dipoles

Yujie Bai et al.

ADVANCED OPTICAL MATERIALS (2019)

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Article Chemistry, Multidisciplinary

Optimization of Low-Dimensional Components of Quasi-2D Perovskite Films for Deep-Blue Light-Emitting Diodes

Shuai Yuan et al.

ADVANCED MATERIALS (2019)

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Article Chemistry, Physical

Ammonium Thiocyanate-Passivated CsPbI3 Perovskite Nanocrystals for Efficient Red Light-Emitting Diodes

Min Lu et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2019)

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Article Materials Science, Multidisciplinary

Sodium Ion Modifying In Situ Fabricated CsPbBr3 Nanoparticles for Efficient Perovskite Light Emitting Diodes

Hongting Chen et al.

ADVANCED OPTICAL MATERIALS (2019)

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Article Chemistry, Multidisciplinary

Amplified Spontaneous Emission Based on 2D Ruddlesden-Popper Perovskites

Meili Li et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

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Article Chemistry, Multidisciplinary

Designing Efficient Energy Funneling Kinetics in Ruddlesden-Popper Perovskites for High-Performance Light-Emitting Diodes

Natalia Yantara et al.

ADVANCED MATERIALS (2018)

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Article Multidisciplinary Sciences

Maximizing and stabilizing luminescence from halide perovskites with potassium passivation

Mojtaba Abdi-Jalebi et al.

NATURE (2018)

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Article Multidisciplinary Sciences

Efficient green light-emitting diodes based on quasi-two-dimensional composition and phase engineered perovskite with surface passivation

Xiaolei Yang et al.

NATURE COMMUNICATIONS (2018)

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Article Multidisciplinary Sciences

Color-stable highly luminescent sky-blue perovskite light-emitting diodes

Jun Xing et al.

NATURE COMMUNICATIONS (2018)

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Article Multidisciplinary Sciences

Solution-processed perovskite light emitting diodes with efficiency exceeding 15% through additive-controlled nanostructure tailoring

Muyang Ban et al.

NATURE COMMUNICATIONS (2018)

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Article Chemistry, Multidisciplinary

Ligand Mediated Transformation of Cesium Lead Bromide Perovskite Nanocrystals to Lead Depleted Cs4PbBr6 Nanocrystals

Zeke Liu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

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Article Chemistry, Multidisciplinary

Essentially Trap-Free CsPbBr3 Colloidal Nanocrystals by Postsynthetic Thiocyanate Surface Treatment

Brent A. Koscher et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

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Article Chemistry, Multidisciplinary

Tailoring the Energy Landscape in Quasi-2D Halide Perovskites Enables Efficient Green-Light Emission

Li Na Quan et al.

NANO LETTERS (2017)

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Article Optics

Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites

Zhengguo Xiao et al.

NATURE PHOTONICS (2017)

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Article Chemistry, Multidisciplinary

Vertically Oriented 2D Layered Perovskite Solar Cells with Enhanced Efficiency and Good Stability

Xinqian Zhang et al.

SMALL (2017)

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Article Chemistry, Physical

Guanidinium thiocyanate selective Ostwald ripening induced large grain for high performance perovskite solar cells

Ngoc Duy Pham et al.

NANO ENERGY (2017)

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Article Physics, Applied

Sodium bromide additive improved film morphology and performance in perovskite light-emitting diodes

Jinghai Li et al.

APPLIED PHYSICS LETTERS (2017)

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Article Chemistry, Multidisciplinary

Efficient Blue Electroluminescence Using Quantum-Confined Two-Dimensional Perovskites

Sudhir Kumar et al.

ACS NANO (2016)

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Article Chemistry, Multidisciplinary

Ligand-Mediated Synthesis of Shape-Controlled Cesium Lead Halide Perovskite Nanocrystals via Reprecipitation Process at Room Temperature

Shibin Sun et al.

ACS NANO (2016)

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Article Chemistry, Multidisciplinary

Efficient Visible Quasi-2D Perovskite Light-Emitting Diodes

Jinwoo Byun et al.

ADVANCED MATERIALS (2016)

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Article Chemistry, Multidisciplinary

Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells

Weijun Ke et al.

ADVANCED MATERIALS (2016)

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Article Nanoscience & Nanotechnology

Perovskite energy funnels for efficient light-emitting diodes

Mingjian Yuan et al.

NATURE NANOTECHNOLOGY (2016)

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Article Optics

Perovskite light-emitting diodes based on solution-processed self-organized multiple quantum wells

Nana Wang et al.

NATURE PHOTONICS (2016)

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Article Chemistry, Multidisciplinary

Pseudohalide-Induced Moisture Tolerance in Perovskite CH3NH3Pb(SCN)2I Thin Films

Qinglong Jiang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Article Chemistry, Multidisciplinary

Efficient and reproducible CH3NH3PbI3-x(SCN)x perovskite based planar solar cells

Yani Chen et al.

CHEMICAL COMMUNICATIONS (2015)

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Article Chemistry, Physical

Pseudohalide (SCN-)-Doped MAPbI3 Perovskites: A Few Surprises

Ansuman Halder et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2015)

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Article Chemistry, Physical

Low-temperature solution-processed wavelength-tunable perovskites for lasing

Guichuan Xing et al.

NATURE MATERIALS (2014)

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Low-dimensional phase suppression and defect passivation of quasi-2D perovskites for efficient electroluminescence and low-threshold amplified spontaneous emission

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