Ligand density control boosts the efficiency of all-inorganic CsPbBr3 perovskite nanocrystal based light emitting diodes

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2017,（5）
• 页码范围: 314-315
• 页数: 2页
• 语种: 英文

摘要

Lead halide perovskites attracted a lot of attention in the last several years,with a focus gradually shifting from the record power conversion efficiencies reported for photovoltaic devices based on thin perovskite films [1] towards superior luminescence properties of the colloidal perovskite nanocrystals (NCs) [2].Halide perovskites have a general formula of ABX3,where A and B are monovalent and divalent cations,respectively,and X is a monovalent halide (Cl,Br,I) anion.