物理化学学报2017，Vol.33Issue(10)：2099-2105,7.DOI:10.3866/PKU.WHXB201705115
醋酸铅作为铅源合成CH3NH3PbBr3-xClx纳米晶体颗粒
Synthesis of Colloidal Perovskite CH3NH3PbBr3-xClx Nanocrystals with Lead Acetate
摘要
Abstract
Lead acetate,which is highly soluble in dimethylformamide,was used to synthesize mixed halide perovskite CH3NH3PbBr3-xClx (MA =CH3NH3,0 ≤ x ≤ 3) nanocrystals (NCs).This method provides an approach to address the low solubility of lead halides,especially lead chloride.Different Br/Cl ratios in MAPbBr3-xClx lead to various optical properties.The photoluminescence emission peak can be tuned from 399 to 527 nm.Their full-widths at half-maxima (FWHM) are about 20 nm.MAPbBr3-xClx NCs have an average diameter of ～(11 + 3) nm and have uniform dispersion in toluene.The MAPbBr3 NCs have a long average recombination lifetime (Tave =97.4 ns) and a photoluminescence quantum yield (PLQY) of up to 73％.关键词
钙钛矿/CH3NH3PbBr3-xClx/纳米晶体/醋酸铅Key words
Perovskite/CH3NH3PbBr3-xClx/Nanocrystal/Lead acetate分类
化学化工引用本文复制引用
王亚楠,马品,彭路梅,张迪,方艳艳,周晓文,林原..醋酸铅作为铅源合成CH3NH3PbBr3-xClx纳米晶体颗粒[J].物理化学学报,2017,33(10):2099-2105,7.基金项目
The project was supported by the National Natural Science Foundation of China (51303186,51673204) and National Materials Genome Project,China (2016YFB0700600).国家自然科学基金(51303186,51673204)和国家重点研发计划材料基因工程关键技术与支撑平台(2016YFB0700600)资助 （51303186,51673204）
