A co-crystallization induced surface modification strategy with cyanuric acid modulates the bandgap emission of carbon dots

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

11 Scopus Citations
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Author(s)

  • Zhengjie Zhou
  • Enshan Liu
  • Xin Bao
  • Di Li
  • Ding Zhou
  • Zhanao Tan
  • Songnan Qu

Detail(s)

Original languageEnglish
Pages (from-to)10987-10993
Journal / PublicationNanoscale
Volume12
Issue number20
Online published11 May 2020
Publication statusPublished - 28 May 2020

Abstract

Along the line of offering surface modification strategies to tune emission properties of carbon dots (CDs), a co-crystallization strategy with cyanuric acid (CA) was developed to modulate the bandgap emissions of CDs and produce highly emissive solid composite CD-based materials. The original blue emission of the CDs changed to a green emission of the CDs@CA crystals, which showed a high photoluminescence quantum yield of 62% and room temperature phosphorescence. The CA molecules firmly bonded to the surface of the CDs and cannot be disrupted by polar solvents or temperature stimuli under ambient conditions, which influenced electron transitions of CDs leading to improved luminescence with excellent thermal stability both in solution and solid states.

Citation Format(s)

A co-crystallization induced surface modification strategy with cyanuric acid modulates the bandgap emission of carbon dots. / Zhou, Zhengjie; Ushakova, Elena V.; Liu, Enshan; Bao, Xin; Li, Di; Zhou, Ding; Tan, Zhanao; Qu, Songnan; Rogach, Andrey L.

In: Nanoscale, Vol. 12, No. 20, 28.05.2020, p. 10987-10993.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review