A partially stabilized photoeletrochemical cell using hydrogenated amorphous silicon photoanodes coated with thin films of polypyrrole

T. Skotheim, I. Lundström, A. E. Delahoy, F. J. Kampas, P. E. Vanier

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Electrochemical Schottky barrier devices with polypyrrole coated hydrogenated amorphous silicon, (a-Si:H), as photoanodes and a variety of aqueous redox solutions have been investigated. The open circuit voltage reaches 0.63 V for most anodic redox couples and exhibits a high degree of surface pinning due to the barrier formed between a-Si:H and the highly conductive polypyrrole. We report a substantial improvement in the stability of the polypyrrole coated electrodes compared with the bare a-Si:H. The efficiency of the present devices is limited by low photocurrent and fill factor.

Original languageEnglish (US)
Pages (from-to)281-283
Number of pages3
JournalApplied Physics Letters
Volume40
Issue number3
DOIs
StatePublished - 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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