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18 August 2005 Charge separation at the modified surface of cuprous oxide thin film
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yasuhiro Tachibana, Ryusuke Muramoto, and Susumu Kuwabata "Charge separation at the modified surface of cuprous oxide thin film", Proc. SPIE 5929, Physical Chemistry of Interfaces and Nanomaterials IV, 592903 (18 August 2005);


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