Modulation of the Photoluminescence of Semiconductors by Surface Adduct Formation: An Application of Inorganic Photochemsitry to Chemical Sensing

• Thomas F. Kuech ^[1] ; Arthur B. Ellis ^[1] ; Robert J. Brainard ^[1] ; Keith D. Kepler ^[1] ; Dale E. Moore ^[1] ; Edmund J. Winder ^[1] ; George C. Lisensky ^[2]
  1. [1] University of Wisconsin–Madison

     University of Wisconsin–Madison

     City of Madison, Estados Unidos

     
  2. [2] Beloit College

     Beloit College

     City of Beloit, Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 74, Nº 6 (June), 1997, págs. 680-684
• Idioma: inglés
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• Resumen

  • Semiconductors provide a unique perspective on inorganic photochemistry. The electronic structure of common semiconductors permits a coupling of optical and electrical phenomena. As a consequence, semiconductors have found widespread use in many common electro-optical devices, including light-emitting-diodes (LEDs), diode lasers, and solar cells. In the case of LEDs and diode lasers, electrical excitation produces a highly emissive excited states of the solid; in contrast, in solar cells, photoexcitation can produce an eletrical output.