Flux assisted low-temperature synthesis of YAG:Yb3+,Er3+ and its optical property
- Title
- Flux assisted low-temperature synthesis of YAG:Yb3+,Er3+ and its optical property
- Author
- 심광보
- Keywords
- BaF2 flux; YAG:Yb3+,Er3+; upconversion
- Issue Date
- 2016-02
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v. 17, NO 2, Page. 118-121
- Abstract
- Yb3+/Er3+ co-doped polycrsytalline yttrium-aluminum garnet (YAG : Yb3+,Er3+) powders were synthesized by a flux (BaF2) assisted solid-state reaction method at low-temperature. The optimum condition of flux concentration and calcination temperature was investigated by the XRD analysis. Crystal structure and upconversion luminescent property of the synthesized YAG : Yb3+,Er3+ powder was analyzed as a function of Yb3+ concentration when concentration of Er3+ was fixed at 25.0 mol%. Under 980 nm excitation, YAG : Yb3+,Er3+ powder exhibited weak red emissions near 660 and 670 nm, and strong green UC emissions at 530 and 550 nm corresponding to the intra 4f transitions of Er3+ (F-4(9/2), H-2(11/2), S-4(3/2)) -˃ Er3+ (I-4(15/2). The Yb3+ 15 mol% doped YAG : Yb3+,Er3+ powder sample exhibited strongly shiny green emission. A possible UC mechanism for YAG : Yb3+,Er3+ depending was discussed in detail.
- URI
- http://jcpr.kbs-lab.co.kr/file/JCPR_vol.17_2016/JCPR17-2/10.2016-011_118-121.pdfhttp://hdl.handle.net/20.500.11754/31757
- ISSN
- 1229-9162
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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