Haranath, D. and Sahai, Sonal and Singh, Sukhvir and Joshi, Amish G. and Husain, M. and Shanker, V. (2011) Highly efficient, tunable and bright photoluminescence from hydrophobic silica gel nanoparticles. Journal of Materials Chemistry , 21 (26). pp. 9471-9474. ISSN 0959-9428

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Abstract

For the first time, we report a highly efficient, tunable and bright photoluminescence with external quantum yield up to [similar]34% under 350 nm excitation from hydrophobic SiO2 gel nanoparticles. This is achieved by suitably modifying the relative surface states of the gel network with trivalent (Al3+/Ga3+) ions and emission from rare-earth (Eu3+) dopant. This attractive property arises from the intrinsic separation of absorption and the emission energies due to a large Stokes shift and offers opportunities for the design of novel nanophosphor based white light-emitting devices.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Royal Society of Chemistry.
Subjects:	Chemistry Chemistry > Physical Chemistry Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Mr. Abhishek Yadav
Date Deposited:	27 Dec 2012 07:56
Last Modified:	27 Dec 2012 07:56
URI:	http://npl.csircentral.net/id/eprint/931

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