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Title: Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
Authors: Zhang, Xiaodong
Chen, Xiaokai
Guo, Yi
Gu, Long
Wu, Yinglong
Bindra, Anivind Kaur
Teo, Wei Liang
Wu, Fu-Gen
Zhao, Yanli
Keywords: Science::Chemistry
Issue Date: 2021
Source: Zhang, X., Chen, X., Guo, Y., Gu, L., Wu, Y., Bindra, A. K., Teo, W. L., Wu, F. & Zhao, Y. (2021). Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement. ACS Applied Materials and Interfaces, 13(41), 48449-48456.
Project: A20E5c0081 
Journal: ACS Applied Materials and Interfaces 
Abstract: Despite great efforts in the development of diverse nanomaterials, a general route to synthesize metal-free chalcogen quantum dots (QDs) is still lacking. Moreover, the modification of chalcogen QDs is a bottleneck that severely hinders their applications. Herein, we develop a facile method to construct different chalcogen QDs (including S QDs, Se QDs, and Te QDs) with the assistance of thiolates. In addition to stabilizing chalcogen QDs, the thiolates also endow the chalcogen QDs with favorable modifiability. Different from most dyes whose fluorescence is quenched after short-term light irradiation, the prepared chalcogen QDs have significantly enhanced fluorescence emission under continuous light irradiation. Taking advantage of the distinctive photoinduced fluorescence enhancement property, long-time cell imaging with superb performance is realized using the chalcogen QDs. It is envisioned that the chalcogen QDs show promising potential as fluorescent materials in different fields beyond bioimaging.
ISSN: 1944-8244
DOI: 10.1021/acsami.1c15772
Schools: School of Physical and Mathematical Sciences 
Rights: © 2021 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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