White-light emission by phonon assisted coherent mixing of excitons in Au8-CdS hybrid nanorods

S. Rath, O. Halder, A. Pradhani, B. Satpati, A. Maity, T. K. Chini, N. Gogurla, S. K. Ray

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Gold cluster (Au8) coated CdS hybrid nanorods (HNRs), synthesized using a sonication assisted assembly route, exhibit phonon assisted coherent mixing of excitons. As observed from optical absorption, Raman scattering, x-ray diffraction and transmission electron microscopic studies, the Au8 modulates the crystal - and electronic - structure of the CdS nanorods, effecting enhancement of exciton-phonon (e-p) interactions. The e-p interaction and entropy effect mediated phase matching of the excitonic transitions, leading - via cooperative and coherent mixing of the excitons' color - to the emission of white light, has been confirmed from room temperature and time resolved photoluminescence measurements.

Original languageEnglish
Article number495706
Issue number49
StatePublished - 10 Nov 2016
Externally publishedYes


  • coherent emission
  • hybrid semiconductor
  • optical properties

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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