Fluorescence Resonance Energy Transfer between CdTe Quantum Dots and Rhodamine B

Acta Chimica Sinica ›› 2009, Vol. 67 ›› Issue (19): 2222-2226. Previous Articles Next Articles

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CdTe量子点与罗丹明B间的荧光共振能量转移研究

王益林* 陆建平童张法陈璐

(广西大学化学化工学院南宁 530004)

投稿日期:2009-05-12 修回日期:2009-07-13 发布日期:2009-09-02
通讯作者: 王益林 E-mail:ylinwang2002@yahoo.com.cn

Fluorescence Resonance Energy Transfer between CdTe Quantum Dots and Rhodamine B

Wang, Yilin* Lu, Jianping Tong, Zhangfa Chen, Lu

(School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China)

Received:2009-05-12 Revised:2009-07-13 Published:2009-09-02

Abstract

CdTe quantum dots (QD) were synthesized in aqueous medium by employing thioglycolic acid as a stabilizer. The fluorescence resonance energy transfer (FRET) between the CdTe QD and rhodamine B (RhB) in the presence of cetyltrimethylammonium bromide (CTAB) using the QD with an emission wavelength of 522 nm as an energy donor and rhodamine B as an acceptor was investigated. When the concentration of CTAB was 1.37×10－4 mol/L in the buffer (pH＝5.00), the results showed that the number of RhB molecules with every QD to undergo the energy transfer effectively was 6, the energy transfer efficiency (E) and the distance (r) between the QD and RhB was 0.69 and 2.65 nm, respectively.

Key words: quantum dot, rhodamine B, fluorescence resonance energy transfer

CLC Number:

O657

Cite this article

WANG Yi-Lin, LIU Jian-Beng, TONG Zhang-Fa, CHEN Lu. Fluorescence Resonance Energy Transfer between CdTe Quantum Dots and Rhodamine B[J]. Acta Chimica Sinica, 2009, 67(19): 2222-2226.

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CdTe量子点与罗丹明B间的荧光共振能量转移研究

Fluorescence Resonance Energy Transfer between CdTe Quantum Dots and Rhodamine B

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