The green upconversion emission mechanism investigation of GdVO4:Yb3+, Er3+ via tuning of the sensitizer concentration

作者: Ju Hyun Oh , Byung Kee Moon , Byung Chun Choi , Jung Hyun Jeong , Jung Hwan Kim

DOI: 10.1016/J.SOLIDSTATESCIENCES.2015.02.010

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摘要: Abstract GdVO 4 :Yb 3+ , Er powder was synthesized by a conventional solid state reaction. The XRD pattern confirmed that the phosphors have tetragonal structure. up-conversion photoluminescence (UCPL) spectrum consisted of 2H11/2 → 4I15/2 (525 nm) and 4S3/2 → 4I15/2 (554 nm) transition. UCPL intensity is stronger than adjusting Yb concentrations. In order to explain this behavior, we investigated pump power dependence.

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