Tuning of Photoluminescence by Cation Nanosegregation in the (CaMg)x(NaSc)1-xSi2O6 Solid Solution

Zhiguo Xia, Guokui Liu, Jianguo Wen, Zhigang Mei, Mahalingam Balasubramanian, Maxim S. Molokeev, Licong Peng, Lin Gu, Dean J. Miller, Quanlin Liu, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

Controlled photoluminescence tuning is important for the optimization and modification of phosphor materials. Herein we report an isostructural solid solution of (CaMg)x(NaSc)1-xSi2O6 (0 <x <1) in which cation nanosegregation leads to the presence of two dilute Eu2+ centers. The distinct nanodomains of isostructural (CaMg)Si2O6 and (NaSc)Si2O6 contain a proportional number of Eu2+ ions with unique, independent spectroscopic signatures. Density functional theory calculations provided a theoretical understanding of the nanosegregation and indicated that the homogeneous solid solution is energetically unstable. It is shown that nanosegregation allows predictive control of color rendering and therefore provides a new method of phosphor development.

Original languageEnglish
Pages (from-to)1158-1161
Number of pages4
JournalJournal of the American Chemical Society
Volume138
Issue number4
DOIs
Publication statusPublished - Feb 3 2016

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Phosphors
Cations
Solid solutions
Photoluminescence
Tuning
Positive ions
Density functional theory
Color
Ions

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Tuning of Photoluminescence by Cation Nanosegregation in the (CaMg)x(NaSc)1-xSi2O6 Solid Solution. / Xia, Zhiguo; Liu, Guokui; Wen, Jianguo; Mei, Zhigang; Balasubramanian, Mahalingam; Molokeev, Maxim S.; Peng, Licong; Gu, Lin; Miller, Dean J.; Liu, Quanlin; Poeppelmeier, Kenneth R.

In: Journal of the American Chemical Society, Vol. 138, No. 4, 03.02.2016, p. 1158-1161.

Research output: Contribution to journalArticle

Xia, Z, Liu, G, Wen, J, Mei, Z, Balasubramanian, M, Molokeev, MS, Peng, L, Gu, L, Miller, DJ, Liu, Q & Poeppelmeier, KR 2016, 'Tuning of Photoluminescence by Cation Nanosegregation in the (CaMg)x(NaSc)1-xSi2O6 Solid Solution', Journal of the American Chemical Society, vol. 138, no. 4, pp. 1158-1161. https://doi.org/10.1021/jacs.5b12788
Xia, Zhiguo ; Liu, Guokui ; Wen, Jianguo ; Mei, Zhigang ; Balasubramanian, Mahalingam ; Molokeev, Maxim S. ; Peng, Licong ; Gu, Lin ; Miller, Dean J. ; Liu, Quanlin ; Poeppelmeier, Kenneth R. / Tuning of Photoluminescence by Cation Nanosegregation in the (CaMg)x(NaSc)1-xSi2O6 Solid Solution. In: Journal of the American Chemical Society. 2016 ; Vol. 138, No. 4. pp. 1158-1161.
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