Recent developments of lead-free halide double perovskites: a new superstar in the optoelectronic field

Abstract

Metal halide perovskite has come to the limelight in the field of optoelectronic devices in the last few decades. Unique optical and electronic properties along with variable morphology provide a...

Potassium Iodide-Modified Lead-Free Cs3Bi2I9 Perovskites for Enhanced High-Efficiency Solar Cells

“…Excellent optoelectronic characteristics (such as bandgap tuning, interfacial carrier mobility, and extremely lengthy diffusion times for charge carriers are only a few of the features discussed in the literature), low cost, and ease of preparation at low temperatures make metal halide perovskites prospective competitors for leading photovoltaic application technologies [ 1 , 2 , 3 , 4 ]. PSCs, such as lead-based iodide PSCs, are promising technologies that have already achieved more than 25.5% power conversion efficiency (PCE) in recent years [ 5 , 6 , 7 , 8 ], making them comparable to commercialized thin-film counterparts [ 9 ].…”

Binary solvent engineering for small-molecular organic semiconductor crystallization

“…These organic semiconductors also demonstrated enhanced electrical stability when exposed to air, 22 bias, 23 or illumination. 24 These high charge carrier mobilities and exceptional stabilities have opened up more pathways for implementing organic semiconductors in the fabrication of high performance semiconductor devices including organic thin film transistors, [25][26][27][28] organic gas sensors, [29][30][31][32][33] organic optoelectronic devices, [34][35][36][37][38][39][40] and complimentary circuits. [41][42][43] Nevertheless, a challenging issue in organic semiconductor growth is the control of crystallization and morphology.…”

Lead-free all-inorganic halide double perovskite materials for optoelectronic applications: progress, performance and design

“…41 A t eff value between 0.8 and 1.0 42 and m eff value larger than 0.4 usually This journal is © the Owner Societies 2022 result in s perovskite structures. 43 Fig. 2 presents a summary of the formability of recently reported LFAIHDPs 21,32,34,38,[44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59] in a t eff -m eff map, where the existing double perovskites generally satisfy these conditions.…”