Issue 39, 2023

Long-lived fluorinated boron-nitride dots exhibiting room-temperature phosphorescence and high-temperature resistance

Abstract

Matrix- and metal-free phosphorescence materials with long room-temperature lifetime and high-temperature phosphorescence properties have attracted tremendous attention but seldom reported. Herein, a universal fluorination strategy was proposed to obtain a series of matrix-free fluorinated boron nitride dots (F-BNDs) with markedly extended lifetime by constructing rigid F-induced hydrogen-bond networks. Miraculously, when the F-BNDs(e) were heated to 150 °C, the afterglow was temperature-controlled and still maintained with a lifetime as long as 0.25 s. In terms of their interesting phosphorescence properties, this work actually provides a guiding strategy to realize F-BND phosphorescence materials with time-resolved and temperature-controlled lifetime encoding characteristics. Widespread applications in higher-level information encryption, time-resolved information displaying, dynamic multidimensional anti-counterfeiting and colorless security ink were demonstrated.

Graphical abstract: Long-lived fluorinated boron-nitride dots exhibiting room-temperature phosphorescence and high-temperature resistance

Supplementary files

Article information

Article type
Paper
Submitted
26 Mar 2023
Accepted
28 Aug 2023
First published
30 Aug 2023

CrystEngComm, 2023,25, 5533-5540

Long-lived fluorinated boron-nitride dots exhibiting room-temperature phosphorescence and high-temperature resistance

X. Zhang, S. Han, G. Lian, D. Cui and Q. Wang, CrystEngComm, 2023, 25, 5533 DOI: 10.1039/D3CE00286A

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