光致发光
乙二胺
量子产额
价(化学)
发光
配体(生物化学)
化学
纳米晶
量子
钙钛矿(结构)
材料科学
纳米技术
结晶学
物理
无机化学
光电子学
光学
量子力学
荧光
有机化学
受体
生物化学
作者
Ke Xu,Guanghai Shi,Binbin Qian,Dongfeng Xue
标识
DOI:10.1142/s2811086223500012
摘要
A strategy for synthesizing stable, pure, and excellent luminescent perovskite magic-sized clusters (PMSCs) by optimizing ligands is proposed. The optimal ligand pair was selected from methylphosphonic acid (MPA), valeric acid (VA), and butanesulfonic acid (BA) ligands in conjunction with ethylenediamine (EDA), respectively. Through ligand-assisted reprecipitation (LAPR) method, MPA–EDA CsPbBr 3 PMSCs with high photoluminescence quantum yield (PLQY) of up to [Formula: see text]72% and excellent stability were optimized. By the density of states (DOS) analysis, the differences in luminescence properties were explored to originate from Pb(6s)–Br(4p) hybridization, and the hypothesis of constructing quantum maps of functional materials based on valence electron orbital hybridization was proposed. The above results provide a reliable experimental and theoretical direction for the future application of quantum label PMSCs in the field of optoelectronic devices.
科研通智能强力驱动
Strongly Powered by AbleSci AI