Tb3+/Yb3+ co-doped Y2O3 upconversion transparent ceramics: Fabrication and characterization for IR excited green emission
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- 作者：Pratik Deshmukha ; ppdeshmukh@rrcat.gov.in" class="auth_mail" title="E-mail the corresponding author ; pratiklhc@gmail.com" class="auth_mail" title="E-mail the corresponding author ; S. Satapathya ; srinu73@rrcat.gov.in" class="auth_mail" title="E-mail the corresponding author ; M.K. Singha ; Y.P. Kumarb ; P.K. Guptaa
- 关键词：Luminescence ; Optical materials and properties ; Spectroscopy ; Nanosize
- 刊名：Journal of the European Ceramic Society
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：37
- 期：1
- 页码：239-242
- 全文大小：1552 K
文摘
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Tb/Yb doped Y2O3 transparent ceramic was fabricated by vacuum sintering of nano particles.
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Zr4+ and La3+ utilized as sintering additive which controls random grain growth during sintering were incorporated in the nanoparticle during synthesis.
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Transmittance of ∼80% was achieved in 1 mm thick pellet (in ∼450 to ∼2000 nm range). Upconverted emission peaks at ∼483, ∼543, ∼583 and ∼625 nm were observed for IR excitation at 929 and 976 nm excitations.
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The strong emission band observed at 543 nm with high PL intensity due to Yb-Tb energy transfer upconversion indicated that (Tb0.01Yb0.01La0.01Zr0.02Y0.95)2O3 transparent ceramic is a promising laser gain medium for green emission.