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Enhanced quantum efficiency and thermal stability in tunable yellow-emitting SrxCa1-xAlSiN3:Ce3+ phosphor

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成果类型:
期刊论文
作者:
Si, Jiayong*;Liu, Lihong;Liang, Qifeng;Yi, Wei;Cai, Gemei;...
通讯作者:
Si, Jiayong;Xie, Rong-Jun
作者机构:
[Si, Jiayong] Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China.
[Si, Jiayong; Hirosaki, Naoto; Liu, Lihong; Takeda, Takashi] Natl Inst Mat Sci, Sialon Grp, Namiki1-1, Tsukuba, Ibaraki 3050044, Japan.
[Liang, Qifeng] Shaoxing Univ, Dept Phys, Shaoxin 312000, Zhejiang, Peoples R China.
[Yi, Wei] MANA, Nano Elect Device Mat Grp, Namiki 1-1, Tsukuba, Ibaraki 3050044, Japan.
[Cai, Gemei] Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China.
通讯机构:
[Si, Jiayong] C
[Xie, Rong-Jun] X
Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China.
Xiamen Univ, Coll Mat, Xiamen 361005, Fujian, Peoples R China.
语种:
英文
关键词:
Aluminum compounds;Blue shift;Calcium compounds;Cerium compounds;Efficiency;Electronic structure;Light emission;Lighting;Phosphors;Professional aspects;Quantum efficiency;Silicon;Silicon compounds;Thermodynamic stability;Tuning;Broadband emission;Color rendering index;Color rendering properties;Color tuning;External quantum efficiency;Local coordination structures;White LED;White lightemitting diodes (WLEDs);Nitrogen compounds
期刊:
Journal of Alloys and Compounds
ISSN:
0925-8388
年:
2020
卷:
831
页码:
154791
基金类别:
We are grateful to the National Key Research and Development Program ( MOST , 2017YFB0404301 ), and the National Nature Science Foundation of China (Nos. 51832005 , 51561135015 , 51502020 , 11574215 and 51772330 ). The calculations in this work were performed on the supercomputers of Shanghai supercomputer center and of the high performance computing center of Nanjing University. We are grateful to the National Key Research and Development Program (MOST, 2017YFB0404301), and the National Nature Science Foundation of China (Nos. 51832005, 51561135015, 51502020, 11574215 and 51772330). The calculations in this work were performed on the supercomputers of Shanghai supercomputer center and of the high performance computing center of Nanjing University.
机构署名:
本校为第一且通讯机构
院系归属:
机电工程学院
摘要:
Ce3+ doped CaAlSiN3 is a promising broadband orange phosphor that can be applied in white light-emitting diodes (wLEDs) solid state lighting for general illumination. However, its emission color and quantum efficiency are not good enough to achieve high color rendering properties and luminous efficacy of wLEDs. In this work, we proposed to realize the spectral tuning and property enhancement of CaAlSiN3:Ce3+ by bandgap engineering via the cationic substitution of Ca by Sr. The relationship between photoluminescence and local coordination struct...

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