OBSERVATION OF 3 ELECTRONIC-TRANSITIONS IN CD(S,SE) NANOCRYSTALS BY MODULATION SPECTROSCOPY

STOKES K., YUKSELICI H., PERSANS P.

SOLID STATE COMMUNICATIONS, vol.92, no.3, pp.195-201, 1994 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 92 Issue: 3
  • Publication Date: 1994
  • Doi Number: 10.1016/0038-1098(94)90875-3
  • Journal Name: SOLID STATE COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.195-201
  • Yıldız Technical University Affiliated: No

Abstract

We report absorption and electromodulated transmission spectra for a series of CdS0.44Se0.56 nanoparticle/glass composites in which the average particle radius was varied from less than 2 nm to more than 6 nm by thermal treatment. We observe at least three distinct modulation peaks which shift with particle size. Two of these peaks have been previously identified but we believe that the third is a new observation in electromodulation spectroscopy. We discuss the size-dependence of the energy, spectral shape, and magnitude of these modulation peaks.