Fluorescence resonance energy transfer in a non-conjugated system of CdSe quantum dots/zinc-phthalocyanine

被引：38

作者：

Nyk, Marcin ^{[1
]}

Palewska, Krystyna ^{[1
]}

Kepinski, Leszek ^{[3
]}

Wilk, Kazimiera A. ^{[2
]}

Strek, Wieslaw ^{[3
]}

Samoc, Marek ^{[1
]}

机构：

[1] Wroclaw Univ Technol, Inst Phys & Theoret Chem, Dept Chem, PL-50370 Wroclaw, Poland

[2] Wroclaw Univ Technol, Div Organ Technol, Dept Chem, PL-50370 Wroclaw, Poland

[3] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

来源：

JOURNAL OF LUMINESCENCE | 2010年 / 130卷 / 12期

关键词：

FRET; Luminescence; Quantum dots; Phthalocyanine; PDT; DOTS; NANOCRYSTALS; BEHAVIOR; CANCER; LABELS; CELLS; DYES;

D O I：

10.1016/j.jlumin.2010.08.017

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Energy transfer between CdSe quantum dots (QDs) as donors and Zn phthalocyanine (Zn-Pc) molecules as acceptors was studied using steady-state photoluminescence and time-correlated single photon counting techniques. With the latter technique it is evaluated that the lifetime of Zn-Pc emission increases from 4 ns to ca. 30 ns on 460 nm excitation in the presence of the QDs. The concomitant decrease in the lifetime of the QDs emission (from 23.5 to 18.4 ns) indicates that the excitation of Zn-Pc occurs not only through reabsorption but also through fluorescence resonance energy transfer. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2487 / 2490

页数：4

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