Letter | Published:

Photoelectrochemical conversion using reaction-centre electrodes

Nature volume 286, pages 584585 (07 August 1980) | Download Citation

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Abstract

Recent reports have demonstrated the possibility of using photoactive, biological membrane components in photoelectro-chemical cells1. Such systems have produced small photovoltages and photocurrents. The present studies in our laboratories have led to the attachment of a much simpler biological complex, the bacterial photosynthetic reaction centre isolated from Rhodopseudomonas sphaeroides, directly onto an SnO2 electrode. The light-induced, primary-charge-separation processes which occur across the reaction-centre macromolecule have been coupled to the electrode, and in a two-electrode configuration photovoltages of 70 mV and photocurrents of 0.3 µcm−2 have been observed in an external circuit. The phenomena are not due to Dember effects, and ‘reactor-centre electrodes’ may serve as a model system for future photovoltaic devices.

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Author information

Affiliations

  1. Photochemical Research Associates, Inc., London, Ontario, Canada N6E 2V2

    • A. Frederick Janzen
  2. Solar Energy Research Institute, Golden, Colorado 80401

    • Michael Seibert

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About this article

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DOI

https://doi.org/10.1038/286584a0

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