2D Layered Materials of Rare-Earth Er-Doped MoS2with NIR-to-NIR Down- and Up-Conversion Photoluminescence

Gongxun Bai, Shuoguo Yuan, Yuda Zhao, Zhibin Yang, Sin Yuk Choi, Yang Chai, Siu Fung Yu, Shu Ping Lau, Jianhua Hao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

118 Citations (Scopus)


A study applied Er ions to the large-scale 2D MoS2thin films synthesized by chemical vapor deposition (CVD) technique. Both up-conversion (UC) and down-conversion (DC) photoluminescence (PL) emissions located in NIR spectral regime were first observed in 2D layered transition metal dichalcogenides (TMDs) simply using a single wavelength near-infrared (NIR) pumping source. Luminescence wavelengths of the rare-earth (RE)-doped 2D TMDs were greatly extended and tuned compared to pristine counterpart.
Original languageEnglish
Pages (from-to)7472-7477
Number of pages6
JournalAdvanced Materials
Publication statusPublished - 1 Jan 2016


  • 2D materials
  • photoluminescence
  • rare-earth ions
  • substitution doping
  • up-conversion

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this