This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1016/j.apsusc.2016.07.074 in citations.
Interface engineering of titanium oxide protected a-Si:H/a-Si:H photoelectrodes for light induced water splitting
Interface engineering of titanium oxide protected a-Si:H/a-Si:H photoelectrodes for light induced water splitting
TiO2 is a common protection layer on semiconductor electrodes for photoelectrochemical water splitting. We investigate the interface formation of TiO2 on amorphous silicon tandem solar cells by X-ray photoelectron spectroscopy. In order to optimize the contact properties, we prepare TiOx interface l...
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Personal Name(s): | Ziegler, Jürgen (Corresponding author) |
---|---|
Yang, Florent / Wagner, Stephan / Kaiser, Bernhard / Jaegermann, Wolfram / Urbain, Félix / Becker, Jan-Philipp (Corresponding author) / Smirnov, Vladimir / Finger, Friedhelm | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | Applied surface science, 389 (2016) S. 73 - 79 |
Imprint: |
Amsterdam
Elsevier
2016
|
DOI: |
10.1016/j.apsusc.2016.07.074 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Solar cells of the next generation |
Publikationsportal JuSER |
TiO2 is a common protection layer on semiconductor electrodes for photoelectrochemical water splitting. We investigate the interface formation of TiO2 on amorphous silicon tandem solar cells by X-ray photoelectron spectroscopy. In order to optimize the contact properties, we prepare TiOx interface layers with various oxygen content by reactive magnetron sputter deposition. We observe, that a TiOx interface layer can reduce the silicon oxide growth during the film deposition on the amorphous silicon, but it forms a non-ohmic contact. The electrochemical investigation shows, that the benefit due to the reduction of the silicon oxide is counteracted by the unfavorable contact formation of TiOx interface layers prepared with low oxygen content. |