Full-Color Chemically Modulated g-C3N4 for White-Light-Emitting Device

Qianyi Guo, Minchen Wei, Zekun Zheng, Xiongjian Huang, Xiaoqian Song, Shao Bin Qiu, Xiao bao Yang, Xiaofeng Liu, Jianrong Qiu, Guoping Dong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)


Polymeric g-C3N4 with controllable photoluminescence emission wavelength in the whole visible light range (450–650 nm) is synthesized through the one-step molecular doping during the thermal condensation process of g-C3N4 conjugated framework, which opens up its application beyond the conventional catalysis scopes. By adjusting the doped content of hetero-molecules, the modified g-C3N4 with the optical properties controlled according to the demand of practical applications can be facilely and largely obtained. It overcomes the limitation of the narrow adjusting range of conventional g-C3N4 on optical properties and makes it become more promising for applications in solid-state displays. The corresponding multiple-color g-C3N4-based LED devices and the white-light LEDs with high quality can be obtained as supported by experiments and theoretical calculations. Moreover, the effect of doped molecule on the π-conjugated system of g-C3N4 is systematically studied here, and the tunable luminescence mechanism is proposed.

Original languageEnglish
Article number1900775
JournalAdvanced Optical Materials
Issue number21
Publication statusPublished - 1 Nov 2019


  • controllable photoluminescence emission
  • full-color g-CN
  • white-light-emitting device

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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