作者
Tong Shu, Xiangfang Lin, Ziping Zhou, Dan Zhao, Feng Xue, Feifeng Zeng, Jianxing Wang, Changtao Wang, Lei Su, Xueji Zhang
发表日期
2019/5/1
期刊
Sensors and Actuators B: Chemical
卷号
286
页码范围
198-205
出版商
Elsevier
简介
We reported new findings, i.e., stimuli-responsivity, on the oligomer shell of aggregation-induced emission (AIE) type silver nanoclusters via thiol-induced chemical etching. The intriguing AIE properties of the lipoic acid-protected silver nanoclusters were initially determined with their large Stokes shift, microsecond-scale lifetime and a high content of Ag(I) components. Additionally, likely owing to shell-provided protection, they exhibited desired aqueous storage stability (over 3 months). By modulating solution pH and salinity, the oligomer shell rigidified/softened, resulting in enhancement/quenching of the AIE-based photoluminescence of the silver nanoclusters, accordingly. However, their featured UV–vis absorption remained relatively intact, demonstrating that the changes in photoluminescence are attributed to the transition of radiative and non-radiative energy of the silver nanoclusters. Interestingly, by …
引用总数
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