Broadband mid-infrared luminescence of Bi2Se3 and doped crystals

Haibo Xing, Liangbi Su, Xihong Chen, Xiao Fan, Xiantao Jiang, Feng Wu, Xiaobo Qian, Jun Xu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Pure and doped Bi2Se3 crystals were grown with the vertical Bridgman method. Broadband absorption and emission were detected. Annealing treatment and an x-ray photoelectron spectometry test revealed that the emission centre might be Bi clusters. The energy level transition diagrams of the MIR luminescent centres were fixed according to the absorption and emission spectra. The formation of Bi clusters and effects of Ca and Sb doping are discussed. A self-consistent explanation on the mechanism of luminescence is proposed.

Original languageEnglish
Article number035701
Pages (from-to)1-4
Number of pages4
JournalLaser Physics
Volume24
Issue number3
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • single crystal
  • Bi clusters
  • mid-infrared luminescence

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