Sophyapreethi, K.R. and Lu, C.H. and Thirumalai, J. and Jagannathan, R. and Natarajan, T.S. and Nayak, N.U. and Radhakrishna, I. and Jayachandran, M. and Trivedi, D.C. (2004) SrAl4O7 : Eu2+ nanocrystals: synthesis and fluorescence properties. Journal of Physics D: Applied Physics, 37. pp. 2664-2669. ISSN 0022-3727

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Divalent europium doped strontium di-aluminate (SrAl4O7 : Eu2+) nanocrystals have been synthesized using a facile sol–gel polymer thermolysis method. The photoluminescence characteristics of smaller particles (φ ∼ 15 nm) show a significant difference with respect to their bulk counterpart. In this nanocrystalline system, the electronic structure of the Eu2+ excited state seems to undergo considerable modification induced by the surface states involved in slow relaxation kinetics that mimic phosphorescence like features.

Item Type: Article
Subjects: Electrochemical Materials Science
Depositing User: ttbdu cecri
Date Deposited: 28 Feb 2012 16:37
Last Modified: 28 Feb 2012 16:37

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