Enhanced Photoluminescence Property for Quantum Dot-Gold Nanoparticle Hybrid

被引：0
|
作者：
Qianqian Huang
Jing Chen
Jian Zhao
Jiangyong Pan
Wei Lei
Zichen Zhang
机构：
[1] Southeast University,School of Electronic Science and Engineering
[2] Tsinghua University,State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument
来源：
Nanoscale Research Letters | 2015年 / 10卷
关键词：
Quantum dot; Metal–semiconductor system; LSPR;
D O I：
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中图分类号：
学科分类号：
摘要：
In this paper, we have synthesized ZnCdSeS quantum dots (QDs)-gold nanoparticle (Au NPs) hybrids in aqueous solution via bi-functional linker mercaptoacetic acid (MPA). The absorption peaks of ZnCdSeS QDs and Au are both located at 520 nm. It is investigated that PL intensity of QD-Au hybrid can be affected by the amounts of Au and pH value of hybrid solution. The located surface plasmon resonance (LSPR) effect of QD-Au NPs has been demonstrated by increased fluorescence intensity. The phenomenon of fluorescence enhancement can be maximized under the optimized pH value of 8.5. LSPR-enhanced photoluminescence property of QD-Au hybrid will be beneficial for the potential applications in the area of biological imaging and detection.
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