文献类型：期刊文献

英文题名：Quantum Dots Acting as Energy Acceptors with Organic Dyes as Donors in Solution

作者：Xu, Hu[1];Huang, Xiaomei[1];Zhang, Wenjin[1];Chen, Guanjiao[1];Zhu, Weihong[1];Zhong, Xinhua[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Dept Chem, Shanghai 200237, Peoples R China

年份：2010

卷号：11

期号：14

起止页码：3167

外文期刊名：CHEMPHYSCHEM

收录：;EI(收录号：20200708174947);WOS:【SCI-EXPANDED(收录号:WOS:000283386800019)】；

基金：We thank the National Natural Science Foundation of China (No. 20771037), the Program for New Century Excellent Talents in University, the Shuguang Project (06SG33), SRFDP (20070251014), the Fundamental Research Funds for the Central Universities, and the Program for Professor of Special Appointment at Shanghai Institutions of Higher Learning for financial support.

语种：英文

外文关键词：energy acceptors; energy donors; Forster resonant energy transfer (FRET); organic dyes; quantum dots

摘要：Quantum dots (QDs) usually act as energy donors in Forster resonant energy transfer (FRET) in various application fields. We report, for the first time, a FRET process from a conventional naphthalimide chromophore 1 to CdSe/ZnS core/shell QDs (acting as energy acceptors) in (1)-QDs hybrid system in solution. This FRET process is supported by various spectroscopies, such as steady-state and time-resolved photoluminescence (PL) as well as PL excitation spectra. The highest energy transfer efficiency is estimated to be about 0.37. Interestingly, the role of QDs in FRET can be specifically reversed (from energy acceptors to energy donors) with the use of QDs with larger band-gaps.