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


STOKES K., YUKSELICI H. , PERSANS P.

SOLID STATE COMMUNICATIONS, cilt.92, ss.195-201, 1994 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 92 Konu: 3
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1016/0038-1098(94)90875-3
  • Dergi Adı: SOLID STATE COMMUNICATIONS
  • Sayfa Sayısı: ss.195-201

Özet

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.