Fluorescence of CdSe/ZnS quantum dots in solid solutions in the presence of organic molecules DODCI

被引：6
|
作者：
Gorbatsevich, SK
Kaputskaya, IA [1 ]
Mikhnevich, SY
Artemyev, MV
Nabiev, IR
Strekal, ND
Maskevich, SA
机构：
[1] Belarusian State Univ, Fac Phys, Minsk 220050, BELARUS
[2] Natl Acad Sci, BI Stepanov Phys Inst, Minsk 220072, BELARUS
[3] Belarusian State Univ, Inst Biol Physicochim, Minsk 220080, BELARUS
[4] Univ Reims, IFR 53 Biomol, EA 3306, F-51100 Reims, France
[5] Y Kupala Grodno State Univ, Grodno 230023, BELARUS
来源：
JOURNAL OF LUMINESCENCE | 2004年 / 110卷 / 1-2期
关键词：
luminescence; electronic excitation energy transfer; CdSe/ZnS quantum dot;
D O I：
10.1016/j.jlumin.2004.03.003
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Fluorescence characteristics of solid solutions of CdSe/ZnS quantum dots (donor) and organic dye 3,3'-Diethyloxadicarbocyanine iodide (acceptor) in polymethylmetacrylate films have been investigated. The fluorescence intensity increase caused by the exciting radiation at the frequency of the QD absorption has been found for the films containing both QDs and DODCI. The abrupt rise of the fluorescence polarization degree has been observed at the high-frequency edge of the radiation spectrum of these films. Possible processes (nonradiative electronic excitation energy transfer, acceptor photodegradation) accounting for the experimental dependences are also discussed. (C) 2004 Elsevier B.V. All rights reserved.
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页码：23 / 29
页数：7
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