☆ 4.8 Review

Ion Migration in Perovskite Light-Emitting Diodes: Mechanism, Characterizations, and Material and Device Engineering

ADVANCED MATERIALS (2022)

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Color-Stable Blue Light-Emitting Diodes Enabled by Effective Passivation of Mixed Halide Perovskites

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Summary: Bandgap tuning through mixing halide anions is an attractive feature for metal halide perovskites, but mixed halide perovskites often exhibit phase segregation under electrical biases. By effectively passivating surface defects, researchers have achieved color-stable blue electroluminescence from mixed bromide/chloride perovskite LEDs, providing new insights into the color instability issue and encouraging further development of high-performance and color-stable blue PeLEDs.

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Bright and Stable Light-Emitting Diodes Based on Perovskite Quantum Dots in Perovskite Matrix

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Summary: This study introduces a new type of perovskite quantum dots that remain stable in a thin layer of precursor solution and utilize strained QDs as nucleation centers to drive homogeneous crystallization. These new materials show suppressed Auger bi-exciton recombination and bright luminescence under high excitation, leading to primary red LEDs with significantly enhanced performance compared to control materials.

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Unveiling the additive-assisted oriented growth of perovskite crystallite for high performance light-emitting diodes

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Summary: Solution-processed metal halide perovskites with additives play a crucial role in passivating defects and influencing the crystallization process. By tracking chemical interactions and crystallographic evolution, suitable additives can be found to improve the quality of perovskite films and device performance.

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Mobile ions determine the luminescence yield of perovskite light-emitting diodes under pulsed operation

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Octylammonium Sulfate Decoration Enhancing the Moisture Durability of Quasi-2D Perovskite Film for Light-Emitting Diodes

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Summary: Quasi-2D perovskite shows excellent luminescence properties for PeLEDs, but water-induced lattice degradation and crystalline phase transition limit its application. Octylammonium sulfate decoration effectively enhances the moisture durability of perovskite film, reduces defect density, and enhances lattice stability, while also increasing photoluminescence quantum yield. Furthermore, the generated PbSO4 improves carrier transport and injection balance, resulting in enhanced operational lifetime and maximum external quantum efficiency of PeLEDs.

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Interfacial Anchoring Effect Enables Efficient Large-Area Sky-Blue Perovskite Light-Emitting Diodes

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Summary: This study presents an interface engineering scheme using a multifunctional molecule APDO to manipulate the crystallization of perovskite films, resulting in improved radiative recombination and hole-transport capability for large-area blue perovskite light-emitting diodes. The interface engineering enabled sky-blue perovskite films with uniformity and low trap states, leading to enhanced device performance with peak external quantum efficiency of 9.2% for 100 mm^2 devices and up to 6.1% for 400 mm^2 devices.

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High-Performance Perovskite-Based Blue Light-Emitting Diodes with Operational Stability by Using Organic Ammonium Cations as Passivating Agents

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Summary: The use of organic ammonium cations as passivating agents in blue emitting perovskites has been shown to stabilize the spectral instability and improve device performance. By tuning the concentration of diphenylpropylammonium chloride, the blue Perovskite-based light-emitting diode stably emits in the deep-blue spectral region with a half-life time of 420 s.

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Role of Excess FAI in Formation of High-Efficiency FAPbI(3)-Based Light-Emitting Diodes

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The physics of ion migration in perovskite solar cells: Insights into hysteresis, device performance, and characterization

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

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Dual Passivation of Perovskite Defects for Light-Emitting Diodes with External Quantum Efficiency Exceeding 20%

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Perovskite Light‐Emitting Diodes: Surface‐2D/Bulk‐3D Heterophased Perovskite Nanograins for Long‐Term‐Stable Light‐Emitting Diodes (Adv. Mater. 1/2020)

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

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Interpretation of Resistance, Capacitance, Defect Density, and Activation Energy Levels in Single-Crystalline MAPbI3

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

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Large-area near-infrared perovskite light-emitting diodes

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Edge stabilization in reduced-dimensional perovskites

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Perovskite-molecule composite thin films for efficient and stable light-emitting diodes

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A Cocktail of Multiple Cations in Inorganic Halide Perovskite toward Efficient and Highly Stable Blue Light-Emitting Diodes

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

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Thiocyanate-Treated Perovskite-Nanocrystal-Based Light-Emitting Diodes with Insight in Efficiency Roll-Off

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Dimensional Tailoring of Ultrahigh Vacuum Annealing-Assisted Quantum Wells for the Efficiency Enhancement of Perovskite Light-Emitting Diodes

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Rational Interface Engineering for Efficient Flexible Perovskite Light-Emitting Diodes

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Suppressing Efficiency Roll-Off at High Current Densities for Ultra-Bright Green Perovskite Light-Emitting Diodes

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Shining Light on the Photoluminescence Properties of Metal Halide Perovskites

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Degradation Mechanism of Perovskite Light-Emitting Diodes: An In Situ Investigation via Electroabsorption Spectroscopy and Device Modelling

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Thermal Management Enables Bright and Stable Perovskite Light-Emitting Diodes

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Stabilizing Perovskite Light-Emitting Diodes by Incorporation of Binary Alkali Cations

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High-Efficiency Formamidinium Lead Bromide Perovskite Nanocrystal-Based Light-Emitting Diodes Fabricated via a Surface Defect Self-Passivation Strategy

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Improving the Quality and Luminescence Performance of All-Inorganic Perovskite Nanomaterials for Light-Emitting Devices by Surface Engineering

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Prominent Heat Dissipation in Perovskite Light-Emitting Diodes with Reduced Efficiency Droop for Silicon-Based Display

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Regulating strain in perovskite thin films through charge-transport layers

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Designing the Perovskite Structural Landscape for Efficient Blue Emission

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Stabilizing the Electroluminescence of Halide Perovskites with Potassium Passivation

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Ion Migration-Induced Degradation and Efficiency Roll-off in Quasi-2D Perovskite Light-Emitting Diodes

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Revealing Factors Influencing the Operational Stability of Perovskite Light-Emitting Diodes

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Light Out-Coupling Management in Perovskite LEDs-What Can We Learn from the Past?

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Suppressing Ion Migration Enables Stable Perovskite Light-Emitting Diodes with All-Inorganic Strategy

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In-situ passivation perovskite targeting efficient light-emitting diodes via spontaneously formed silica network

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Multifunctional Naphthol Sulfonic Salt Incorporated in Lead-Free 2D Tin Halide Perovskite for Red Light-Emitting Diodes

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Simultaneous Low-Order Phase Suppression and Defect Passivation for Efficient and Stable Blue Light-Emitting Diodes

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Microscopic Degradation in Formamidinium-Cesium Lead Iodide Perovskite Solar Cells under Operational Stressors

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Understanding the Role of Ion Migration in the Operation of Perovskite Light-Emitting Diodes by Transient Measurements

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

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Multifunctional Charge Transporting Materials for Perovskite Light-Emitting Diodes

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Electronic-ionic coupling in perovskite based solar cells: Implications for device stability

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Laser-induced inter-ion migration and the effect of different long alkylammonium halide functionalization on CH3NH3Pb(BrxI1-x)3 colloidal nanoparticles

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Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots

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Proton-transfer-induced 3D/2D hybrid perovskites suppress ion migration and reduce luminance overshoot

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A bilateral interfacial passivation strategy promoting efficiency and stability of perovskite quantum dot light-emitting diodes

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Intermediate-phase-assisted low-temperature formation of γ-CsPbI3 films for high-efficiency deep-red light-emitting devices

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Perovskite Quantum Dots with Atomic Crysta Shells for Light-Emitting Diodes with Low Efficiency Roll-Off

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A solvent-based surface cleaning and passivation technique for suppressing ionic defects in high-mobility perovskite field-effect transistors

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Efficient light-emitting diodes from mixed-dimensional perovskites on a fluoride interface

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Double Electron Transport Layer and Optimized CsPbI3 Nanocrystal Emitter for Efficient Perovskite Light-Emitting Diodes

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In Situ-Fabricated Perovskite Nanocrystals for Deep-Blue Light-Emitting Diodes

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Dimension control of in situ fabricated CsPbClBr2 nanocrystal films toward efficient blue light-emitting diodes

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Elucidating and Mitigating Degradation Processes in Perovskite Light-Emitting Diodes

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Full-Color Spectrum Coverage by High-Color-Purity Perovskite Nanocrystal Light-Emitting Diodes

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Vacuum Dual-Source Thermal-Deposited Lead-Free Cs3Cu2I5 Films with High Photoluminescence Quantum Yield for Deep-Blue Light-Emitting Diodes

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Enhancing quantum yield of CsPb(BrxCl1-x)3 nanocrystals through lanthanum doping for efficient blue light-emitting diodes

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Thermal-induced interface degradation in perovskite light-emitting diodes

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Organic additive engineering toward efficient perovskite light-emitting diodes

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Manganese Doping Stabilizes Perovskite Light-Emitting Diodes by Reducing Ion Migration

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Ammonium acetate passivated CsPbI3 perovskite nanocrystals for efficient red light-emitting diodes

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Effect of Grain Boundaries on Charge Transport in Methylammonium Lead Iodide Perovskite Thin Films

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Zn-Alloyed CsPbI3 Nanocrystals for Highly Efficient Perovskite Light-Emitting Devices

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Rational molecular passivation for high-performance perovskite light-emitting diodes

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Modulation of recombination zone position for quasi-two-dimensional blue perovskite light-emitting diodes with efficiency exceeding 5%

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Perovskite Light-Emitting Diodes: Efficient CsPbBr3 Perovskite Light-Emitting Diodes Enabled by Synergetic Morphology Control (Advanced Optical Materials 4/2019)

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Advanced Optical Materials (2019)

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Conjugated Polyelectrolytes as Multifunctional Passivating and Hole-Transporting Layers for Efficient Perovskite Light-Emitting Diodes

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Improving the Stability of Metal Halide Perovskite Quantum Dots by Encapsulation

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Stable and scalable 3D-2D planar heterojunction perovskite solar cells via vapor deposition

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Mn2+ Doping Enhances the Brightness, Efficiency, and Stability of Bulk Perovskite Light-Emitting Diodes

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Reduced Efficiency Roll-Off and Improved Stability of Mixed 2D/3D Perovskite Light Emitting Diodes by Balancing Charge Injection

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The Future Is Blue (LEDs): Why Chemistry Is the Key to Perovskite Displays

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Unveiling the synergistic effect of precursor stoichiometry and interfacial reactions for perovskite light-emitting diodes

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Lead-Free Antimony-Based Light-Emitting Diodes through the Vapor-Anion-Exchange Method

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Enhanced Performance of Perovskite Light-Emitting Diodes via Diamine Interface Modification

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Investigation on Thermally Induced Efficiency Roll-Off: Toward Efficient and Ultrabright Quantum-Dot Light-Emitting Diodes

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Understanding the Improvement in the Stability of a Self-Assembled Multiple-Quantum Well Perovskite Light-Emitting Diode

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Ligand-Induced Surface Charge Density Modulation Generates Local Type-II Band Alignment in Reduced-Dimensional Perovskites

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Efficient blue light-emitting diodes based on quantum-confined bromide perovskite nanostructures

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Stabilizing heterostructures of soft perovskite semiconductors

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The Role of Grain Boundaries in Perovskite Solar Cells

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Degradation Mechanisms in Organic Lead Halide Perovskite Light-Emitting Diodes

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Highly stable hybrid perovskite light-emitting diodes based on Dion-Jacobson structure

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Green Photoluminescence of Perovskite CsPb(Br1-xIx)3 Nanocrystals for Wide Color Gamut Displays

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Understanding the Ligand Effects on Photophysical, Optical, and Electroluminescent Characteristics of Hybrid Lead Halide Perovskite Nanocrystal Solids

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Stable and bright formamidinium-based perovskite light-emitting diodes with high energy conversion efficiency

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Improved Outcoupling Efficiency and Stability of Perovskite Light-Emitting Diodes using Thin Emitting Layers

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Mixed Lead-Tin Halide Perovskites for Efficient and Wavelength-Tunable Near-Infrared Light-Emitting Diodes

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Coupled Ionic-Electronic Equivalent Circuit to Describe Asymmetric Rise and Decay of Photovoltage Profile in Perovskite Solar Cells

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Surface engineering towards highly efficient perovskite light-emitting diodes

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High Efficiency Blue and Green Light-Emitting Diodes Using Ruddlesden-Popper Inorganic Mixed Halide Perovskites with Butylammonium Interlayers

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Excited-state stability of quasi-two-dimensional metal halide perovskite films under optical and electrical excitations

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Defect Passivation for Red Perovskite Light-Emitting Diodes with Improved Brightness and Stability

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Facile Synthesis of Stable and Highly Luminescent Methylammonium Lead Halide Nanocrystals for Efficient Light Emitting Devices

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Direct Evidence of Ion-Migration-Induced Degradation of Ultrabright Perovskite Light-Emitting Diodes

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Engineering Perovskite Nanocrystal Surface Termination for Light-Emitting Diodes with External Quantum Efficiency Exceeding 15%

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Blue perovskite light-emitting diodes: progress, challenges and future directions

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A MAPbBr3:poly(ethylene oxide) composite perovskite quantum dot emission layer: enhanced film stability, coverage and device performance

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Ionic-to-electronic current amplification in hybrid perovskite solar cells: ionically gated transistor-interface circuit model explains hysteresis and impedance of mixed conducting devices

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Growth of Nanosized Single Crystals for Efficient Perovskite Light-Emitting Diodes

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Light-Emitting Diodes: Highly Efficient Spectrally Stable Red Perovskite Light-Emitting Diodes (Adv. Mater. 20/2018)

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Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites

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Improving the Stability of Metal Halide Perovskite Materials and Light-Emitting Diodes

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A Strategy for Architecture Design of Crystalline Perovskite Light-Emitting Diodes with High Performance

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Defects in metal triiodide perovskite materials towards high-performance solar cells: origin, impact, characterization, and engineering

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Iodine chemistry determines the defect tolerance of lead-halide perovskites

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Effective approach for reducing the migration of ions and improving the stability of organic-inorganic perovskite solar cells

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Intrinsic Point Defects in Inorganic Cesium Lead Iodide Perovskite CsPbI3

Yang Huang et al.

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

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Minimising efficiency roll-off in high-brightness perovskite light-emitting diodes

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Suppressed Ion Migration along the In-Plane Direction in Layered Perovskites

Xun Xiao et al.

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Suppression of atomic vacancies via incorporation of isovalent small ions to increase the stability of halide perovskite solar cells in ambient air

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Halogen Migration in Hybrid Perovskites: The Organic Cation Matters

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

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

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Electric Bias Induced Degradation in Organic-Inorganic Hybrid Perovskite Light-Emitting Diodes

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Ultra-Bright Near-Infrared Perovskite Light-Emitting Diodes with Reduced Efficiency Roll-off

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Efficient Perovskite Light-Emitting Diodes via Tuning Nanoplatelet Distribution and Crystallinity Orientation

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PbS Capped CsPbI3 Nanocrystals for Efficient and Stable Light-Emitting Devices Using p-i-n Structures

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Manipulating the Trade-off Between Quantum Yield and Electrical Conductivity for High-Brightness Quasi-2D Perovskite Light-Emitting Diodes

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Highly bright and stable all-inorganic perovskite light-emitting diodes with methoxypolyethylene glycols modified CsPbBr3 emission layer

Songquan Wu et al.

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Perovskite light-emitting diodes based on spontaneously formed submicrometre-scale structures

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Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent

Kebin Lin et al.

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Hybrid perovskite light emitting diodes under intense electrical excitation

Hoyeon Kim et al.

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Excess charge-carrier induced instability of hybrid perovskites

Yuze Lin et al.

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High Brightness and Enhanced Stability of CsPbBr3-Based Perovskite Light-Emitting Diodes by Morphology and Interface Engineering

Xue Liu et al.

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Recent Advances toward High-Efficiency Halide Perovskite Light-Emitting Diodes: Review and Perspective

Quyet Van Le et al.

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Defects engineering for high-performance perovskite solar cells

Feng Wang et al.

NPJ FLEXIBLE ELECTRONICS (2018)

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Quantification of light-enhanced ionic transport in lead iodide perovskite thin films and its solar cell applications

Yi-Cheng Zhao et al.

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Thermal Conductivity of Methylammonium Lead Halide Perovskite Single Crystals and Thin Films: A Comparative Study

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How Strong Is the Hydrogen Bond in Hybrid Perovskites?

Katrine L. Svane et al.

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Spontaneous Octahedral Tilting in the Cubic Inorganic Cesium Halide Perovskites CsSnX3 and CsPbX3 (X = F, CI, Br, I)

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Amine-Based Passivating Materials for Enhanced Optical Properties and Performance of Organic Inorganic Perovskites in Light-Emitting Diodes

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High Defect Tolerance in Lead Halide Perovskite CsPbBr3

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Broadly tunable metal halide perovskites for solid-state light-emission applications

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Mixed-Halide Perovskites with Stabilized Bandgaps

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Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites

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Ultra-bright and highly efficient inorganic based perovskite light-emitting diodes

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Direct Evidence of Ion Diffusion for the Silver-Electrode-Induced Thermal Degradation of Inverted Perovskite Solar Cells

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Redox Chemistry Dominates the Degradation and Decomposition of Metal Halide Perovskite Optoelectronic Devices

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