Light Converting Inorganic Phosphors for White Light-Emitting Diodes
Abstract
:1. Introduction
2. Principle of White Light Generating in LEDs
3. Converting Phosphors for LEDs
3.1. Yellow phosphors
3.1.1. YAG:Ce3+
Atoms | x | y | z | Fraction | Uiso |
---|---|---|---|---|---|
Ce | 0.125 | 0 | 0.25 | 0.023 | 0.0164(2) |
Y | 0.125 | 0 | 0.25 | 0.977 | 0.0164(2) |
Al | 0 | 0 | 0 | 1 | 0.0197(7) |
Al | 0.375 | 0 | 0.25 | 1 | 0.0171(5) |
O | -0.0298(2) | 0.0506(2) | 0.1493(2) | 1 | 0.0172(8) |
Space group: Ia-3d (cubic) | Reliability factors | Interatomic distances(Å) | |||
Cell parameters: | Rp = 10.02% | Ce-O | 2.300(3) | ||
a = 12.0136(9)Å | Rwp = 13.69% | 2.440(3) | |||
b = 12.0136(9)Å | χ2 = 2.109 | Al-O | 1.928(3) | ||
c = 12.0136(9)Å | 1.772(2) |
3.1.2. (Sr,Ba)SiO4:Eu2+
3.2. Green phosphors
3.2.1. (Ba,Sr)SiO4:Eu2+
3.2.2. LuAG:Ce3+
3.3. Red phosphors
3.3.1. (Sr,Ba)2Si5N8:Eu2+
3.3.2. (Sr,Ca)SiAlN3:Eu2+
4. Conclusions
Acknowledgements
References and Notes
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Chen, L.; Lin, C.-C.; Yeh, C.-W.; Liu, R.-S. Light Converting Inorganic Phosphors for White Light-Emitting Diodes. Materials 2010, 3, 2172-2195. https://doi.org/10.3390/ma3032172
Chen L, Lin C-C, Yeh C-W, Liu R-S. Light Converting Inorganic Phosphors for White Light-Emitting Diodes. Materials. 2010; 3(3):2172-2195. https://doi.org/10.3390/ma3032172
Chicago/Turabian StyleChen, Lei, Chun-Che Lin, Chiao-Wen Yeh, and Ru-Shi Liu. 2010. "Light Converting Inorganic Phosphors for White Light-Emitting Diodes" Materials 3, no. 3: 2172-2195. https://doi.org/10.3390/ma3032172