A Cu2O/TiO2 heterojunction thin film cathode for photoelectrocatalysis

Siripala, Withana, Ivanovskaya, Anna, Jaramillo, Thomas F., Baeck, Sung-Hyeon and McFarland, Eric W. (2003) A Cu2O/TiO2 heterojunction thin film cathode for photoelectrocatalysis. Solar Energy Materials and Solar Cells, 77 3: 229-237. doi:10.1016/S0927-0248(02)00343-4


Author Siripala, Withana
Ivanovskaya, Anna
Jaramillo, Thomas F.
Baeck, Sung-Hyeon
McFarland, Eric W.
Title A Cu2O/TiO2 heterojunction thin film cathode for photoelectrocatalysis
Formatted title
A Cu2O/TiO2 heterojunction thin film cathode for photoelectrocatalysis
Journal name Solar Energy Materials and Solar Cells   Check publisher's open access policy
ISSN 0927-0248
Publication date 2003-05-30
Year available 2002
Sub-type Article (original research)
DOI 10.1016/S0927-0248(02)00343-4
Open Access Status Not yet assessed
Volume 77
Issue 3
Start page 229
End page 237
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV * North-Holland
Language eng
Formatted abstract
A thin film heterojunction photocathode was developed consisting of 100 nm of n-type titanium dioxide (TiO2) cathode surface deposited on p-type cuprous oxide (Cu2O). The cuprous oxide was deposited electrochemically on Ti foil. A photocurrent of 0.7 mA/cm2 (at - 1 V bias) and an open circuit photovoltage of 460 mV were obtained under an illumination of 700 W/m2. The photoresponse as a function of pH demonstrated that the TiO2 film protected the Cu2O underlayer against corrosion. These results suggest that using a simple and inexpensive heterostucture configuration, the corrosion limitations of Cu2O alone may be overcome while maintaining a relatively high efficiency for photoelectrolysis.
Keyword Heterojunction photocathode
Hydrogen
Photocatalyst
Photoelectrode
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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