This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1016/j.mssp.2015.08.045 in citations.
Influence of the operating temperature on the performance of silicon based photoelectrochemical devices for water splitting
Influence of the operating temperature on the performance of silicon based photoelectrochemical devices for water splitting
This paper highlights the effect of the operation temperature on the performance of a photovoltaic-biased electrosynthetic cell (PV-EC) device for solar hydrogen production based on a triple junction thin film silicon solar cell. The influence of the temperature in the range from 25 °C to 60 °C was...
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Personal Name(s): | Urbain, Félix (Corresponding author) |
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Becker, Jan-Philipp / Smirnov, Vladimir / Ziegler, Jürgen / Yang, Florent / Kaiser, Bernhard / Jaegermann, Wolfram / Hoch, Sascha / Maljusch, Artjom / Rau, Uwe / Finger, Friedhelm | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | Materials science in semiconductor processing, 42 (2016) 1, S. 142 - 146 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2016
|
DOI: |
10.1016/j.mssp.2015.08.045 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Solar cells of the next generation |
Publikationsportal JuSER |
This paper highlights the effect of the operation temperature on the performance of a photovoltaic-biased electrosynthetic cell (PV-EC) device for solar hydrogen production based on a triple junction thin film silicon solar cell. The influence of the temperature in the range from 25 °C to 60 °C was studied individually for all components of the device: the solar cell, the hydrogen evolving cathode, the oxygen evolving anode, and the electrolyte. Based on the experimental data, the overall temperature-dependent current–voltage characteristics of the complete PV-EC device was modeled by merging the current–voltage characteristics of the individual components in an empirical series circuit model. We found that a decrease in the photovoltage of the solar cells with increasing temperature can be compensated by an improved electrochemical kinetics with temperature. This lead to a slight improvement in the performance of the integrated PV-EC device. Under an assumption of 100% faradaic efficiency, a maximum solar-to-hydrogen efficiency of 9.5% was found in 1 M KOH at an operation temperature of 50 °C. |