✦ LIBER ✦

Photosensitization of thin SnO2 nanocrystalline semiconductor film electrodes with metalloporphyrins and alkyl-substituted metalloporphyrins

✍ Scribed by Luis Otero; Hiroyuki Osora; Weijin Li; Marye Anne Fox

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 176 KB
Volume: 02
Category: Article
ISSN: 1088-4246
DOI: 10.1002/(sici)1099-1409(199803/04)2:2<123::aid-jpp56>3.0.co;2-u

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✦ Synopsis

Modest fill factors ($0.2) and efficiencies for sensitized photocurrent generation are observed with porphyrins adsorbed to saturation on a nanocrystalline SnO 2 thin film employed as the working electrode in a photoelectrochemical cell. No dye aggregation is observed at the metal oxide/adsorbate interface, and no advantage in the photosensitization efficiency is seen with two porphyrins that exhibit a stable liquid crystalline phase over another porphyrin that does not.