Enhancing the photothermal conversion efficiency of graphene oxide by doping with NaYF4: Yb, Er upconverting luminescent nanocomposites

Zhilai Li, Omar Johnson, Jin Huang, Ting Feng, Chaoqing Yang, Zhongxin Liu*, Wei Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Graphene oxide/NaYF4: Yb, Er nanocomposites have been synthesized via hydrothermal synthesis, in which spherical cubic phase NaYF4: Yb, Er nanocrystals with uniformity are implanted onto the surface of graphene oxide (GO). Using a near infrared laser set to 980 nm, the light-to-heat energy transfer efficiency of GO/NaYF4: Yb, Er is 13.9% higher than GO by itself, revealing that the photothermal conversion efficiency of GO could be enhanced by doping NaYF4: Yb, Er nanocrystals. This phenomenon can be attributed to the energy transfer between the NaYF4: Yb, Er nanocrystals to the energy receptor in the GO substrate.

Original languageEnglish
Pages (from-to)365-370
Number of pages6
JournalMaterials Research Bulletin
Volume106
DOIs
Publication statusPublished - Oct 2018
Externally publishedYes

Keywords

  • Graphene oxide
  • Hydrothermal
  • Photothermal conversion
  • Upconversion

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