Issue 25, 2017

Room temperature phosphorescence from moisture-resistant and oxygen-barred carbon dot aggregates

Abstract

Phosphorescence is difficult to be observed from carbon dot powder due to the deliquescence and self-quenching in the aggregation state. In this study, aggregation-induced room temperature phosphorescence (RTP) is first reported in self-quenching-resistant nitrogen-doped carbon dot powder, which is suggested to take advantage of the moisture-resistance, rigidization and oxygen-barrier induced by PVA-chains. Furthermore, the optical mechanism of RTP as well as fluorescence is investigated through the abnormal excitation-responsive phenomena, and the potential application in temperature sensing is also preliminarily evaluated. This study may benefit in developing phosphorescence from undesirable aggregation through structure design and exploiting emerging applications for carbon dots.

Graphical abstract: Room temperature phosphorescence from moisture-resistant and oxygen-barred carbon dot aggregates

Supplementary files

Article information

Article type
Paper
Submitted
13 Apr 2017
Accepted
22 May 2017
First published
23 May 2017

J. Mater. Chem. C, 2017,5, 6243-6250

Room temperature phosphorescence from moisture-resistant and oxygen-barred carbon dot aggregates

Y. Chen, J. He, C. Hu, H. Zhang, B. Lei and Y. Liu, J. Mater. Chem. C, 2017, 5, 6243 DOI: 10.1039/C7TC01615H

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