Green preparation of lattice phosphorus doped graphene quantum dots with tunable emission wavelength for bio-imaging

Gang Wang*, Anli Xu, Peng He, Qinglei Guo, Zhiduo Liu, Ziwen Wang, Jiurong Li, Xurui Hu, Zihao Wang, Da Chen, Yongqiang Wang, Siwei Yang, Guqiao Ding

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Lattice phosphorus (P) doping has been demonstrated as an effective method for tuning the fluorescence of graphene quantum dots (GQDs). Due to the many possible oxidation states of P, lattice P-doped GQDs (P-GQDs) are still difficult to synthesize. Here, we report the green preparation of P-GQDs via solvothermal treatment of lecithin with high yield (71 wt%). The resulting P-GQDs show controllable emission wavelength (457–632 nm) and high quantum yield (0.54–0.73), and have demonstrated potential for applications in fluorescent bio-imaging.

Original languageEnglish
Pages (from-to)156-159
Number of pages4
JournalMaterials Letters
Volume242
DOIs
Publication statusPublished - 1 May 2019
Externally publishedYes

Keywords

  • Bio-imaging
  • Biomaterials
  • Carbon materials
  • Green preparation
  • Lattice doping

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