2012年9月
Formation probability of Cr-Nd pair and energy transfer from Cr to Nd in Y3Al5O12 ceramics codoped with Nd and Cr
JOURNAL OF APPLIED PHYSICS
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- 巻
- 112
- 号
- 6
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1063/1.4752403
- 出版者・発行元
- AMER INST PHYSICS
Temperature dependence of decay curves of the Cr3+ and Nd3+ luminescence excited at 432 nm in the Cr3+ absorption bands for YAG ceramics codoped with 1 mol. % Nd3+ and 0.1 mol. % Cr3+ indicates two distinct energy transfer processes from Cr3+ to Nd3+: one is a temperature-independent process via the lowest 2 E excited state of Cr3+ through the exchange interaction between Cr3+ and Nd3+ ions; the other is a temperature-dependent process via the higher T-4(2) excited states of Cr3+ through the thermal Boltzmann distribution. In order to explain these results, we have proposed a simple model on energy transfer from Cr3+ to Nd3+, taking into account a formation probability of a Cr-Nd pair in YAG as a function of separation distance. This Cr-Nd pair model has estimated that the former and latter energy transfer processes occur from a Cr3+ ion to one of Nd3+ ions substituting for the first nearest neighbor Y3+ ions and near Y3+ ions beyond within a sphere with an approximate radius of less than 0.8 nm, respectively. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4752403]
- リンク情報
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- DOI
- https://doi.org/10.1063/1.4752403
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000309423200031&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84867049511&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84867049511&origin=inward
- ID情報
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- DOI : 10.1063/1.4752403
- ISSN : 0021-8979
- eISSN : 1089-7550
- SCOPUS ID : 84867049511
- Web of Science ID : WOS:000309423200031