纳米晶
兴奋剂
发光
量子产额
材料科学
钙钛矿(结构)
光致发光
猝灭(荧光)
纳米技术
化学
光电子学
结晶学
物理
光学
荧光
作者
Chenyang Shen,Yi Zhao,Lin Yuan,Ling Ding,Ya Chen,Haisheng Yang,Shimin Liu,Jingheng Nie,Weidong Xiang,Xiaojuan Liang
标识
DOI:10.1016/j.cej.2019.122868
摘要
All-inorganic perovskite nanocrystals (NCs) have become a new generation of low-cost semiconductor luminescent materials for optoelectronic applications due to their excellent optical properties. Prepared perovskite NCs undergo different ion doping and surface modification, which makes the NCs photo-luminescence quantum yield (PLQY) basically uniform. However, stability of perovskite NCs solution in the environment has always been an important factor restricting its practical application. Here, we used melt-quenching method to prepare a series of different Ni2+ doped CsPbBr3 NCs glass. Through experimental characterization and DFT calculation it is found that the entry of Ni2+ into the NCs lattice can eliminate the structural defects of NCs and improve the order of the perovskite lattice. Ni2+ doped perovskite NCs have strong band edge emission and high quantum yield (up to 84.3%).
科研通智能强力驱动
Strongly Powered by AbleSci AI