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Analysis of upconversion luminescence from Yb3+, Er3+ co-doped SrMoO4

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2012, 22(5), pp.241~246
  • DOI : 10.6111/JKCGCT.2012.22.5.241
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

정준호 1,  허태형 1,  이정훈 1,  이상엽 1,  Suk Hyun Kang 1,  So-Yeon Kim 1,  김새암 1,  Bonggeun Choi 1,  Kwang Bo Shim 1

1한양대학교

Accredited

ABSTRACT

Yb3+, Er3+ co-doped SrMoO4 (SrMoO4 : Yb3+/Er3+) specimens have been successfully synthesized via the complex citrate-gel method and their structural and optical properties were investigated in detail. Under 980 nm excitation,SrMoO4 : Yb3+/Er3+ UC phosphors have been emitted strong green luminescence at 530 and 550 nm with weak red emission around 670 nm corresponding to the intra 4f transitions of Er3+ (4F9/2, 2H11/2, 4S3/2) → Er3+ (4I15/2). The optimal doping concentrations of Er3+ and Yb3+ ions were verified to 2/16 mol% and a possible upconversion mechanism depending on pump power dependence is studied in detail.

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