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

Basant Chitara, S. Venkataprasad Bhat, S. R.C. Vivekchand, A. Gomathi, C. N.R. Rao

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

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.

Original languageEnglish
Pages (from-to)409-413
Number of pages5
JournalSolid State Communications
Volume147
Issue number9-10
DOIs
StatePublished - 1 Sep 2008
Externally publishedYes

Keywords

  • A. Composites
  • A. GaN
  • A. Nanoparticles
  • D. White-light

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

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