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Proceedings Paper

Charge separation at the modified surface of cuprous oxide thin film
Author(s): Yasuhiro Tachibana; Ryusuke Muramoto; Susumu Kuwabata
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Paper Abstract

Photocurrent improvement for the photoelectrochemical cell, based on a Cu2O/Cu electrode in hydrophobic ionic liquid electrolyte, was demonstrated by modifying the Cu2O surface using cyanide treatment, in this case the photocurrent amplitude drastically increased at least by a factor of 10 compared with the non-treatment. Passivation of the surface defect sites through the cyanide treatment process resulted in significantly raising the charge separation yield at the interface. From this experimentation the optimization of the cyanide treatment and the limitation of the photocurrent are considered.

Paper Details

Date Published: 18 August 2005
PDF: 8 pages
Proc. SPIE 5929, Physical Chemistry of Interfaces and Nanomaterials IV, 592903 (18 August 2005); doi: 10.1117/12.616095
Show Author Affiliations
Yasuhiro Tachibana, Osaka Univ. (Japan)
Ryusuke Muramoto, Osaka Univ. (Japan)
Susumu Kuwabata, Osaka Univ. (Japan)


Published in SPIE Proceedings Vol. 5929:
Physical Chemistry of Interfaces and Nanomaterials IV
Clemens Burda; Randy J. Ellingson, Editor(s)

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