Nano Archive

SrAl4O7 : Eu2+ nanocrystals: synthesis and fluorescence properties

Preethi , K. R. S. 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 (19). pp. 2664-2669. ISSN 0022-3727

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Official URL: http://iopscience.iop.org/0022-3727/37/19/009/?ejr...

Abstract

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 (phi similar to 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:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:7095
Deposited By:JNCASR
Deposited On:02 Sep 2009 10:27
Last Modified:02 Sep 2009 10:27

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