Fabrication of artificial photosynthesis systems consisting of Pt/SiC photocathode, CoOx/BiVO4:Mo photoanode, and perovskite solar cell
Akihiko Kudo a, Akihide Iwase a, Yohei Numata b, Masashi Ikegami b, Tsutomu Miyasaka b, Naoto Ichikawa c, Masashi Kato c
a Tokyo University of Science, 1-3 Kagurazaka, Shinjyuku-ku, Tokyo, Japan
b Toin University of Yokohama, 1614 Kurogane-cho, Aoba, Yokohama, 2258503, Japan
c Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Yokohama-shi, Japan, 2017 February 2nd - 4th
Organizers: Tsutomu Miyasaka and Iván Mora-Seró
Poster, Akihide Iwase, 033
Publication date: 7th November 2016

Hydogen production by water splitting is the key technology to solve energy, resources, and environmental issues. The representative artificial photosynthetic reation is water splitting. A photoelectrochemical system is one of the candidates to achieve an efficient water splitting of an artificial photosynthesis. Although various potential photoelectrodes with visible light response have been developed, most of them require an external electric assistance to split water. Recently, fablication of a combined system with such photoelectrodes and solar cells has been extensively studied to overcome that issue. For example, a perovskite solar cell with low cost and high efficiency has attracted much attention. In the present study, we demonstrate solar water splitting upon fabricating a system with a Pt/SiC photocathode, a CoOx/BiVO4:Mo photoanode, and a pervskite solare cell. The Pt/SiC and CoOx/BiVO4:Mo photoelectrodes gave cathodic and anodic photocurrents under simulated sun light irradiation, respectively. The current-potential curve of the Pt/SiC photocathode intersected that of the CoOx/BiVO4 photoanode at around 0.8 VRHE. Therefore, solar water splitting was tested using the combined photoelectrochemical cell with and without a perovskite solar cell. The cell without a perovskite solar cell gave a certain photocurrent and about 1 V of the photovoltage. The photocurrent was further boosted by using a perovskite solar cell. Thus, we successfully fabricated the artificial photosynthetic system for solar water splitting using photoelectrodes and a perovskite solar cell.

© Fundació Scito
We use our own and third party cookies for analysing and measuring usage of our website to improve our services. If you continue browsing, we consider accepting its use. You can check our Cookies Policy in which you will also find how to configure your web browser for the use of cookies. More info