DTIC ADA107581: Luminescent Photoelectrochemical Cells. 7. Photoluminescent pdf

DTIC ADA107581: Luminescent Photoelectrochemical Cells. 7. Photoluminescent_bookcover

DTIC ADA107581: Luminescent Photoelectrochemical Cells. 7. Photoluminescent

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Photoelectrochemical cells (PECs) are being widely studied as devices for optical energy conversion. The excited-state properties of the semiconductors around which PECs are constructed are crucial to efficient energy conversion. We have employed luminescence as a probe of these excited-state-properties, generally using materials such as n-type CdS:Te(Te-doped CdS) which exhibit subband gap emission. Recently we examined emission of band gap energy from n-type CdS and CdSe, two materials which have been used extensively in PEC studies. Since these two compounds form solid solutions over the entire composition range, the mixed compounds represent a natural extension of our emissive studies. We report herein that luminescence from samples of n-type, single-crystal CdSXSe1-X can be used to probe interfacial charge-transfer events relevant to PECs. Specifically, we demonstrate that photoluminescence (PL) can be perturbed and electroluminescence (EL) initiated by interfacial charge-transfer processes

  • Creator/s: Defense Technical Information Center
  • Date: 10/6/1981
  • Year: 1981
  • Book Topics/Themes: DTIC Archive, Streckert, Holger H, WISCONSIN UNIV-MADISON DEPT OF CHEMISTRY, *PHOTOLUMINESCENCE, *ELECTROCHEMISTRY, *CADMIUM SELENIDES, *PHOTOELECTRIC CELLS(SEMICONDUCTOR), OPTICAL PROPERTIES, PHOTOCHEMICAL REACTIONS, INTERFACES, PROCESSING, EXCITATION, ELECTROLUMINESCENCE, ENERGY GAPS, MIXTURES, ENERGY CONVERSION, CHARGE TRANSFER, PERTURBATIONS, ENERGY LEVELS

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