Observation of room temperature photoluminescence in proton irradiated SrTiO3 single crystal

Jaehoon Rho, Jooyoun Kim, Sangwon Shin, Jihwan Kwon, Miyoung Kim, Jonghan Song, Eunjip Choi

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We have irradiated SrTiO3 single crystal with 3 MeV-proton (H+) beam and found that blue (λ=420nm)-, green λ=500nm)-and infrared (λ=800nm)-frequency photoluminescence (PL) are induced simultaneously at room temperature. TEM and EELS analyses show that an oxygen-deficient amorphous layer is formed at the crystal surface by the proton irradiation. Possible origin of the PL-effect is discussed.

Original languageEnglish
Pages (from-to)1784-1786
Number of pages3
JournalJournal of Luminescence
Volume130
Issue number10
DOIs
StatePublished - Oct 2010

Keywords

  • Defect
  • Ion beam
  • Photoluminescence
  • SrTiO

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