TY  - CONF
AU  - Blank, Beatrix
AU  - Ulbrich, Carolin
AU  - Pieters, Bart
AU  - Gerber, Andreas
AU  - Rau, Uwe
TI  - Degradation of tandem solar cells: Separating matching effects from Staebler-Wronski Effect using the Power-Matching-Method
PB  - IEEE
M1  - FZJ-2014-07082
SN  - 978-1-4799-4398-2978-1-4799-4399-9
SP  - 3457 - 3462
PY  - 2014
AB  - In thin-film tandem solar cells the sub cells are usually connected in series. The inherent current-limitation needs to be considered when optimizing the efficiency, but furthermore leads to challenges when comparing the sub cells performances of differently matched tandem cells. We have introduced the Power-Matching-Method that characterizes the device not only under one standard spectrum but under various spectral distributions. By this method, the same tandem cell can be characterized under various matching conditions. Based on simulations, we demonstrate a convenient way to compare differently matched tandem solar cells. Moreover, our simulations show that the method allows distinguishing between matching effects and changes in the sub-cells properties, e.g. changes due to the Staebler-Wronski-Effect.
T2  - 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC)
CY  - 8 Jun 2014 - 13 Jun 2014, Denver (CO)
Y2  - 8 Jun 2014 - 13 Jun 2014
M2  - Denver, CO
LB  - PUB:(DE-HGF)8
DO  - DOI:10.1109/PVSC.2014.6925677
UR  - https://juser.fz-juelich.de/record/185657
ER  -