TY  - JOUR
AU  - Klett, Joachim
AU  - Ziegler, Jürgen
AU  - Radetinac, Aldin
AU  - Kaiser, Bernhard
AU  - Schäfer, Rolf
AU  - Jaegermann, Wolfram
AU  - Urbain, Félix
AU  - Becker, Jan Philipp
AU  - Smirnov, Vladimir
AU  - Finger, Friedhelm
TI  - Band engineering for efficient catalyst-substrate coupling for photoelectrochemical water splitting
JO  - Physical chemistry, chemical physics
VL  - 18
IS  - 16
SN  - 1463-9084
CY  - Cambridge
PB  - RSC Publ.
M1  - FZJ-2016-02427
SP  - 10751 - 10757
PY  - 2016
AB  - To achieve an overall efficient solar water splitting device, not only the efficiencies of photo-converter and catalyst are decisive, but also their appropriate coupling must be considered. In this report we explore the origin of a voltage loss occurring at the interface between a thin film amorphous silicon tandem cell and the TiO2 corrosion protection layer by means of XPS. We find that the overall device can be disassembled into its primary constituents and that they can be analyzed separately, giving insight into the device structure as a whole. Thus, a series of model experiments were conducted, each representing a part of the complete device. We finally arrive at the conclusion, that the formation of a SiO2 interfacial layer between the TiO2 protection layer and the silicon cell gives rise to the voltage loss observed for the whole device.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000374786300009
DO  - DOI:10.1039/C5CP06230F
UR  - https://juser.fz-juelich.de/record/808812
ER  -