期刊
OPTICS LETTERS
卷 43, 期 14, 页码 3305-3308出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.43.003305
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资金
- National Natural Science Foundation of China (NSFC) [51502190, 51750110511]
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology (SCUT) [2017-skllmd-01]
- Science and Technology Projects of Jiangmen [(2017)307, (2017)149]
- Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS) [YZDY-SSW-JSC018]
In this Letter, we report a novel NaLaMgWO6:Mn4+ double-perovskite phosphor. Under the excitation at 342 nm, this phosphor showed a high-efficiency far-red emission at approximately 700 nm with internal quantum efficiency of up to 60%. Moreover, it exhibited a high thermal stability; the emission intensity at 423 k was approximately 57% of that at room temperature. Finally, a prototype light-emitting diode (LED) device was fabricated using the combination of a NaLaMgWO6:Mn4+ far-red-emitting phosphor and 365-nm LED chip. (c) 2018 Optical Society of America
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