Journal
CERAMICS INTERNATIONAL
Volume 44, Issue 9, Pages 10340-10344Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.03.043
Keywords
Phosphors; Rare-earth; Sm3+; Photoluminescence; Energy transfer; White emissions
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Funding
- National Natural Science Foundation of China [51502190]
- Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
- Taiyuan University of Technology [Tyutrc201489a, 2014YQ009, 2015YQ006, 2016YQ03]
- State Key Laboratory of Luminescent Materials and Devices (South China University of Technology) [2017-skllmd-01]
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A novel single-phased white-light-emitting phosphor Sm3+ doped LiCa3MgV3O12 (LCMV) was developed. The LCMV host was one self-activated bluish-green emitting phosphor, which possessed an efficient excitation band in the 250-400 nm wavelength range and showed an intense broadband bluish-green emission with internal quantum efficiency (IQE) of 39%. Doping Sm3+ ions in to LCMV host induced tunable-color emissions, due to the energy transfer from [VO4](3-) to Sm3+ ions. Importantly, under 340 nm excitation, the LCMV:Sm3+ can emitted bright white light by combining the self-activated luminescence of LCMV host and the red emissions of Sm3+ ions, and the IQE of the white-emitting composition-optimized LCMV:0.01Sm(3+) phosphors reached up to 45%. These white-emitting LCMV:Sm3+ phosphors have potential applications in white light-emitting diodes and optical display devices.
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