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Title: Domination of second-sphere shrinkage effect to improve photoluminescence of red nitride phosphors
Authors: Huang, WY
Yoshimura, F
Ueda, K
Pang, WK
Su, BJ
Jang, LJ
Chiang, CY
Zhou, W
Duy, NH
Liu, RS
Keywords: NITRIDES
Issue Date: 14-Nov-2014
Publisher: ACS Publications
Citation: Huang, W.-Y., Yoshimura, F., Ueda, K., Pang, W. K., Su, B.-J., Jang, L.-Y., . . . Liu, R.-S. (2014). Domination of Second-Sphere Shrinkage Effect To Improve Photoluminescence of Red Nitride Phosphors. Inorganic Chemistry, 53(24), 12822-12831. doi:
Abstract: Red Ca0.99Al1–4δ/3–xSi1+δ+xN3–xCx:Eu2+0.01 (δ = 0.345; x = 0–0.2) nitride phosphors exhibit a blue-shifted emission with increased eye sensitivity function and excellent thermal stability. The variations in the photoluminescence in the Ca0.99Al1–4δ/3–xSi1+δ+xN3–xCx:Eu2+0.01 (δ = 0.345; x = 0–0.2) system are thoroughly investigated. The enhanced emission energy and the improved thermal stability with increasing x are dominated by the second-sphere shrinkage effect via the substitution of small Si4+ for large Al3+ with simultaneous charge compensation. Related proofs of the second-sphere shrinkage effect control for photoluminescence are confirmed via high-resolution neutron powder diffraction, EXAFS, and 29Si solid-state NMR techniques. © 2014, American Chemical Society.
ISSN: 1520-510X
Appears in Collections:Journal Articles

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