Issue 48, 2021

Regulating the photoluminescence of carbon dots via a green fluorine-doping-derived surface-state-controlling strategy

Abstract

Herein, we report a green surface-state-controlling strategy to achieve the regulation of the photoluminescence (PL) properties of carbon dots (CDs) via fluorine (F)-doping techniques. Two types of F-doped CDs with different F contents (FCDs1 and FCDs2) were prepared with o-phenylenediamine and its derivative as carbon precursors via different F-doping routes at room temperature. An obvious red-shift of PL for both the obtained CD products was achieved, due to the narrower band gap induced by F-doping. FCDs1 exhibits favorable solid-state PL behaviors due to the alleviated aggregation-induced quenching attributed to the element-dilution effect and the formation of hydrogen bonds, and is used for latent fingerprint identification with high resolution. FCDs2 with a high F content is characterized with a prominent red-shift of 70 nm and used as a powerful probe for the quantitative detection of cobalamin based on inner filter effects, giving a limit of detection of 0.15 μmol L−1.

Graphical abstract: Regulating the photoluminescence of carbon dots via a green fluorine-doping-derived surface-state-controlling strategy

Supplementary files

Article information

Article type
Paper
Submitted
29 sep. 2021
Accepted
15 nov. 2021
First published
16 nov. 2021

J. Mater. Chem. C, 2021,9, 17357-17364

Regulating the photoluminescence of carbon dots via a green fluorine-doping-derived surface-state-controlling strategy

T. Li, W. Shi, Q. Mao and X. Chen, J. Mater. Chem. C, 2021, 9, 17357 DOI: 10.1039/D1TC04660H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements