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01-12-2015 | Research Paper

Studying of the photoluminescence characteristics of Au(0)@Au(I)-thiolate core–shell nanoclusters

Authors: Lu Zou, Liquan Zhang, Yinghui Wang, Qilin Yuan, Qinghui Liu, Yu Wang, Ning Sui, Zhihui Kang, Wenyan Liu, William W. Yu, Yu Zhang, Xuecong Li, Hanzhuang Zhang

Published in: Journal of Nanoparticle Research | Issue 12/2015

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Abstract

The photoluminescence characteristics of Au(0)@Au(I)-thiolate Core–shell nanoclusters (Au-NCs), whose size is <2 nm, are investigated. We use the time-resolved single-photon counting technique and the transient absorption technique to distinguish the mechanism of the photoluminescence of Au-NCs. The dynamic spectral data show that the photoluminescence mechanism should be composed of the fluorescence and the phosphorescence. Meanwhile, Au-NCs have the aggregation induced photoluminescence enhancement property, which is attributed to the suppression of conversion from the singlet state to triplet state when they aggregated together. In addition, the photoluminescence characteristics of aggregated Au-NCs should be further improved through infiltrating them into photonic crystals.

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Title: Studying of the photoluminescence characteristics of Au(0)@Au(I)-thiolate core–shell nanoclusters
Authors: Lu Zou
Liquan Zhang
Yinghui Wang
Qilin Yuan
Qinghui Liu
Yu Wang
Ning Sui
Zhihui Kang
Wenyan Liu
William W. Yu
Yu Zhang
Xuecong Li
Hanzhuang Zhang
Publication date: 01-12-2015
Publisher: Springer Netherlands
Published in: Journal of Nanoparticle Research / Issue 12/2015
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-015-3271-3

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