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White-light sources based on composites of GaN nanocrystals with conducting polymers and nanophosphors

Chitara, Basant and Bhat, Venkataprasad S and Vivekchand, SRC and Gomathi, A and Rao, CNR (2008) White-light sources based on composites of GaN nanocrystals with conducting polymers and nanophosphors. In: Solid State Communications, 147 (9-10). pp. 409-413.

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Abstract

Optical properties of nanocomposites of GaN nanocrystals, 2–4 nm in diameter, with conjugated polymers such as poly(2-methoxy,5-(2-ethylhexoxy)-1,4-phenylenevinylene (MEHPPV) as well as with phosphors nanoparticles have been investigated for use as white light sources. Photoluminescence spectra of the nanocomposites with different weight ratios of the two components are reported. Weak electroluminescence has been observed in the case of MEHPPV-GaN nanocomposites. The GaN–nanophosphor composites exhibit a high quality white light with good CIE coordinates along with an excellent colour rendering index.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Nanoparticles;GaN;composites;white-light.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 07 Oct 2008 10:09
Last Modified: 19 Sep 2010 04:51
URI: http://eprints.iisc.ernet.in/id/eprint/16227

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