Structure, luminescence and energy transfer in Ce 3+ and Mn 2+ codoped γ-AlON phosphors

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成果类型：

期刊论文

作者：

Si, Jiayong;Wang, Le*;Liu, Lihong;Yi, Wei;Cai, Gemei;...

通讯作者：

Wang, Le;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; Funahashi, Shiro; Liu, Lihong; Takeda, Takashi] Natl Inst Mat Sci, Sialon Grp, Namiki1-1, Tsukuba, Ibaraki 3050044, Japan.

[Wang, Le] China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou 310018, Zhejiang, Peoples R China.

[Yi, Wei] MANA, Nano Elect Device Mat Grp, Namiki 1-1, Tsukuba, Ibaraki 3050044, Japan.

[Cai, Gemei] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China.

通讯机构：

[Wang, Le] C

[Xie, Rong-Jun] X

China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou 310018, Zhejiang, Peoples R China.

Xiamen Univ, Coll Mat, Xiamen 316005, Fujian, Peoples R China.

语种：

英文

关键词：

Aluminum;Energy transfer;Ions;Liquid crystal displays;Luminescence;Nuclear magnetic resonance spectroscopy;Phosphors;Rietveld refinement;Sintering;Energy transfer mechanisms;Energy transfer process;External quantum efficiency;Gas-pressure sintering;Green-emitting phosphors;Internal quantum efficiency;Luminescence intensity;Quadrupole interactions;Quantum efficiency

期刊：

Journal of Materials Chemistry C

ISSN：

2050-7526

年：

2019

卷：

期：

页码：

733-742

DOI：

10.1039/c8tc05430d

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 (No. 61575182, 61405183, 5157223, 51561135015, and 51502020).

机构署名：

本校为第一机构

院系归属：

机电工程学院

摘要：

Mn 2+ doped γ-AlON is an interesting narrow-band green emitting phosphor which can be used in wide color gamut white LED backlights for liquid crystal displays (LCDs). However, the spin-forbidden transition of 3d 5 in Mn 2+ results in a quite low absorption efficiency, γ-AlON:Mn 2+ thus has a small external quantum efficiency. Besides Eu 2+ ,Ce 3+ is another promising sensitizer and is expected to improve the emission of Mn 2+ through a distinctive energy transfer process. In this work, a series of Ce 3+ -Mn 2+ codoped γ-AlON phosphors were ...

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Structure, luminescence and energy transfer in Ce 3+ and Mn 2+ codoped γ-AlON phosphors

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