Formation and fluorescent mechanism of red emissive carbon dots from o-phenylenediamine and catechol system

Pengfei Li; Shanshan Xue; Lu Sun; Xupeng Zong; Li An; Dan Qu; Xiayan Wang; Zaicheng Sun

doi:10.1038/s41377-022-00984-5

Light: Science & Applications (Oct 2022)

Formation and fluorescent mechanism of red emissive carbon dots from o-phenylenediamine and catechol system

Pengfei Li,
Shanshan Xue,
Lu Sun,
Xupeng Zong,
Li An,
Dan Qu,
Xiayan Wang,
Zaicheng Sun

Affiliations

Pengfei Li: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology
Shanshan Xue: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology
Lu Sun: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology
Xupeng Zong: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology
Li An: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology
Dan Qu: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology
Xiayan Wang: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology
Zaicheng Sun: Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology

DOI: https://doi.org/10.1038/s41377-022-00984-5
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 11

Abstract

Read online

The fluorophore source of red emissive oPD&CAT system CDs is the 5,14-dihydroquinoxalino[2,3-b] phenazine (DHQP), formed in the initial reaction stage. Subsequently, the DHQP was connected with carbon core. The excited electrons of the molecular state can transfer into the energy level of CDs, which leads to UV excitation red emissive intensity decreased.

Published in Light: Science & Applications

ISSN: 2047-7538 (Online)
Publisher: Nature Publishing Group
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: https://www.nature.com/lsa/

About the journal