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Trends in Photochemistry & Photobiology   Volumes    Volume 6 
Electric gas current induced by UV irradiation to metal electrodes
Kenichiro Nakamura, Makoto Omodani, Yasuhiro Jinbo, Yoshihiro Ohisa
Pages: 161 - 168
Number of pages: 8
Trends in Photochemistry & Photobiology
Volume 6 

Copyright © 1999 Research Trends. All rights reserved


Electric current induced by flowing oxygen gas was detected under irradiation to uv light. Oxygen gas flowed through a narrow gap from metal electrodes to a platinum electrode. The metal electrodes were irradiated to uv light and the platinum electrode was shaded from irradiation. Platinum, copper, aluminum, n-Si and p-Si were used as the active metal electrodes for irradiation. Excited oxygen molecules extract electrons from the active metal surface during irradiation and then negative oxygen molecules are produced. The produced negative oxygen molecules give electrons to another platinum electrode shaded from light irradiation. These electric extraction and capture on each electrode give electric current on external wire connected both electrodes.

The electric gas current system can be applied to signal transmission between separated places by oxygen gas flowing.

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