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Domination of second-sphere shrinkage effect to improve photoluminescence of red nitride phosphors

Journal Article


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.

UOW Authors


  •   Huang, Wan-Yu (external author)
  •   Yoshimura, Fumitaka (external author)
  •   Ueda, Kyota (external author)
  •   Pang, Wei Kong
  •   Su, Bing-Jian (external author)
  •   Jang, Ling-Yun (external author)
  •   Chiang, Chang-Yang (external author)
  •   Zhou, Wuzong (external author)
  •   Duy, Nguyen Hoang (external author)
  •   Liu, Ru-Shi (external author)

Publication Date


  • 2014

Citation


  • Huang, W., Yoshimura, F., Ueda, K., Pang, W., Su, B., Jang, L., Chiang, C., Zhou, W., Duy, N. & Liu, R. (2014). Domination of second-sphere shrinkage effect to improve photoluminescence of red nitride phosphors. Inorganic Chemistry, 53 (24), 12822-12831.

Scopus Eid


  • 2-s2.0-84920157641

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3188

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 12822

End Page


  • 12831

Volume


  • 53

Issue


  • 24

Place Of Publication


  • United States

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.

UOW Authors


  •   Huang, Wan-Yu (external author)
  •   Yoshimura, Fumitaka (external author)
  •   Ueda, Kyota (external author)
  •   Pang, Wei Kong
  •   Su, Bing-Jian (external author)
  •   Jang, Ling-Yun (external author)
  •   Chiang, Chang-Yang (external author)
  •   Zhou, Wuzong (external author)
  •   Duy, Nguyen Hoang (external author)
  •   Liu, Ru-Shi (external author)

Publication Date


  • 2014

Citation


  • Huang, W., Yoshimura, F., Ueda, K., Pang, W., Su, B., Jang, L., Chiang, C., Zhou, W., Duy, N. & Liu, R. (2014). Domination of second-sphere shrinkage effect to improve photoluminescence of red nitride phosphors. Inorganic Chemistry, 53 (24), 12822-12831.

Scopus Eid


  • 2-s2.0-84920157641

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3188

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 12822

End Page


  • 12831

Volume


  • 53

Issue


  • 24

Place Of Publication


  • United States