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Valence-band photoemission from a quantum-dot system.

  • Author(s): Colvin, VL
  • Alivisatos, AP
  • Tobin, JG
  • et al.
Abstract

We report the first application of valence-band photoemission to a quantum-dot system. Photoemission spectra of cadmium sulfide quantum dots, ranging in size from 12 to 35 radius, were obtained using photon energies of 20 to 70 eV. The spectra are qualitatively similar to those obtained for bulk cadmium sulfide, but show a shift in the valence-band maximum with size. © 1991 The American Physical Society.

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