Controllable synthesis of Eu3+-doped Y2O3 nanocrystal/g-C3N4 composites with tunable fluorescence

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

1 Scopus Citations
View graph of relations

Author(s)

  • Zekun Zheng
  • Qianyi Guo
  • Qiwen Pan
  • Jianrong Qiu
  • Guoping Dong

Detail(s)

Original languageEnglish
Pages (from-to)4411-4419
Journal / PublicationJournal of the American Ceramic Society
Volume103
Issue number8
Online published29 Mar 2020
Publication statusPublished - Aug 2020

Abstract

The application of graphitic carbon nitride (g-C3N4) has been restricted in some optoelectronics fields due to its narrow tunable emission region. In order to engineer the optical properties, herein we combine Eu3+:Y2O3 nanocrystals with g-C3N4to control its electronic structure. Surprisingly, with the increasing concentration of Eu3+:Y2O3 nanocrystals, the photoluminescence of Eu3+:Y2O3/g-C3N4 (EYCN) showed a continuous red shift in comparison with pure g-C3N4 from blue to green. In EYCN composites, the Eu3+:Y2O3 nanocrystals as electron donors, can improve the degree of electron delocalization and narrow the bandgap. Importantly, the EYCN composites not only maintain the intrinsic blue-green emission of g-C3N4, but also introduce the red light of Eu3+ ions. Based on the EYCN composites, white light-emitting diode (WLED) were fabricated with a Commission International de L’Eclairage value of (0.3631, 0.3560). This work proposes a new kind of luminescent g-C3N4-based composites, which is expected to broaden its applications in optoelectronics field.

Citation Format(s)

Controllable synthesis of Eu3+-doped Y2O3 nanocrystal/g-C3N4 composites with tunable fluorescence. / Zheng, Zekun; Zeng, Zixin; Guo, Qianyi; Pan, Qiwen; Qiu, Jianrong; Dong, Guoping.

In: Journal of the American Ceramic Society, Vol. 103, No. 8, 08.2020, p. 4411-4419.

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