文献类型：期刊文献

英文题名：Effective Singlet Oxygen Generation in Silica-Coated CsPbBr3 Quantum Dots through Energy Transfer for Photocatalysis

作者：Gu, Kailun[1];Wang, Yu[1];Shen, Jianhua[1];Zhu, Jingrun[1];Zhu, Yihua[1];Li, Chunzhong[2]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：13

期号：4

起止页码：682

外文期刊名：CHEMSUSCHEM

收录：;EI(收录号：20200508111379);WOS:【SCI-EXPANDED(收录号:WOS:000508264300001)】；

基金：This work was supported by the National Natural Science Foundation of China (21776092, 21676093, 51621002, 21838003, 91834301, 21808061, 21978087), the Basic Research Program of Shanghai (17JC1402300), the Shanghai Scientific and Technological Innovation Project (19JC1410400), the Social Development Program of Shanghai (17DZ1200900), the Innovation Program of Shanghai Municipal Education Commission, Program of Shanghai Academic Research Leader (19XD1401400), Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutes of High Learning, Shanghai Rising-Star Program (18QA1401500), and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：exciton; perovskites; photocatalysis; quantum dots; singlet oxygen

摘要：Here, silica-coated CsPbBr3 quantum dots (QDs) were demonstrated to be effective photosensitizers for the generation of singlet oxygen (O-1(2)). The silica encapsulation improved the stability of the perovskite QDs while also preserving an excellent light-harvesting capability in the visible-light region. The appropriate exciton binding energy and dark exciton generation characteristics of perovskite QDs may be responsible for the energy transfer. The high oxidizability of O-1(2) makes the material attractive for application in decomposition of organic dyes such as methyl orange. This work provides new insight for designing excellent perovskite-based photocatalysts.