Lead-free organic-inorganic halide perovskites grown with nontoxic solvents

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2017,（13）
• 页码范围: 901-902
• 页数: 2页
• 语种: 英文

摘要

A Perovskite is any material with the same type of crystal structure of CaTiO3,a mineral discovered in 1839 [1],with the chemical formula of ABX3,where A and B are two cations and X is an anion.Inorganic metal trihalide perovskites,CsPbX3 (X =Cl,Br,and Ⅰ),were synthesized almost 60 years later by reacting PbX2 and CsX salts in aqueous solutions [2].In the ideal cubic-symmetry structure,the A ions in 12-fold cuboctahedral coordination are much larger than the B ions in 6-fold octahedral coordination.