p-n photoelectrolysis cells
- 1 August 1976
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 29 (3) , 150-153
- https://doi.org/10.1063/1.89004
Abstract
The efficiency of photoelectrolysis with solar radiation can be greatly enhanced by using simultaneously illuminated n‐ and p‐type electrodes. An energy level scheme for heterotype and homotype p‐n photoelectrolysis cells is presented which explains the enhanced efficiency. Data are presented for the homotype n‐GaP/p‐GaP and the heterotype n‐TiO2/p‐GaP systems which support the energy model. H2 and O2 are produced in the n‐TiO2/p‐GaP cell without the need of an external anodic bias.Keywords
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