Halide Perovskite Light‐Emitting Diode Technologies

Abstract

received his B.Eng. degree from Imperial College London in 2017 and then received his M.Phil. degree from the University of Cambridge in 2018. He is pursuing his Ph.D. degree at the University of Cambridge with research interests in perovskite light-emitting and imaging algorithm applications. Miguel Anaya is a research fellow at Darwin College and a Marie Curie Fellow in the Cavendish Laboratory at the University of Cambridge. He completed his Ph.D. at the Spanish National Research Council in 2018, with recognition from the Spanish Royal Society of Physics as the Best Thesis in Experimental Physics. He leads a subgroup at the StranksLab focused on the modeling, fabrication, and characterization of perovskite-based light-emitting devices and sensors.

Advances and Challenges in Two-Dimensional Organic–Inorganic Hybrid Perovskites Toward High-Performance Light-Emitting Diodes

“…After that, materials with similar structure to CaTiO 3 are called perovskite. The formula of three-dimensional (3D) halide perovskite is ABX 3 (A = MA + , FA + , Cs + , Rb + , K + ; B = Pb 2+ , Cu 2+ , Sn 2+ ; X = Cl − , Br − , I − ) [11][12][13][14][15][16][17][18][19][20][21].…”

Highly luminescent MAPbI3 perovskite quantum dots with a simple purification process via ultrasound-assisted bead milling

“…Organic-inorganic hybrid lead halide perovskite (APbX 3 ; A ¼ CH 3 NH 3 (MA) or NH 2 CHNH 2 (FA); X ¼ Cl, Br, or I) quantum dots (QDs) have attracted attention as novel light sources for use in light-emitting diodes (LEDs) owing to their high photoluminescence quantum yields (PLQYs), narrow full-width at half-maximum (FWHM) values, and tunable emission wavelengths upon adjusting the halide component. [1][2][3][4][5] Notably, green-emissive MAPbBr 3 QDs exhibit narrow emission with a FWHM of approximately 25 nm, a PLQY of over 90%, and structural stability, maintaining PL emission over 3 months. [6][7][8] In contrast, the optical properties of MAPbI 3 QDs with PL emission in the red and near-infrared regions are inferior to those of green-emissive MAPbBr 3 QDs.…”

Gamma‐Ray Radiation Stability of Mixed‐Cation Lead Mixed‐Halide Perovskite Single Crystals

“…As a new generation of low‐cost semiconductor materials, organic–inorganic hybrid lead halide perovskites are becoming well known for their exceptional solution processability and excellent optoelectronic properties, including high carrier mobility, long carrier lifetime and high defect tolerance. [ 1–11 ] By virtue of these superior advantages, photovoltaic devices based on perovskites have achieved tremendous advances, the power conversion efficiency of which has increased from 3.8% to 25.5% in just twelve years. [ 12,13 ] The prominent power conversion efficiency, high power to weight ratio and compatibility with flexible substrates of perovskite solar cells enable them to be a promising candidate for next‐generation space photovoltaic technology.…”