We investigate the behavior of the solar cell with layer sequence ZnO:Al/Zn0.75Mg0.25O/Zn(O,S)/CIGS for various Zn0.75Mg0.25O (ZMO) thicknesses by comparing the measured cell parameters with the ones obtained by numerical simulations. The combined effects of different conduction band alignments at heterolnterfaces, carrier lifetime in the CIGS bulk, and ZMO layer thickness are analyzed. The impact on the cell performance of acceptor defects at the CIGS/Zn(O,S) interface is also studied. The optimal ZMO thickness corresponding to the highest conversion efficiency is then calculated for all the different conditions.
Tuning the (Zn,Mg)O Layer Thickness for Improved Efficiency in CIGS Solar Cells with Zn(O,S) Buffer: A Numerical Investigation / Sozzi, G.; Perini, L.; Witte, W.; Hariskos, D.. - 2024 IEEE 52nd Photovoltaic Specialist Conference (PVSC):(2024), pp. 234-237. (Intervento presentato al convegno 52nd IEEE Photovoltaic Specialist Conference, PVSC 2024 tenutosi a usa nel 2024) [10.1109/PVSC57443.2024.10748854].
Tuning the (Zn,Mg)O Layer Thickness for Improved Efficiency in CIGS Solar Cells with Zn(O,S) Buffer: A Numerical Investigation
Sozzi G.
;Perini L.;
2024-01-01
Abstract
We investigate the behavior of the solar cell with layer sequence ZnO:Al/Zn0.75Mg0.25O/Zn(O,S)/CIGS for various Zn0.75Mg0.25O (ZMO) thicknesses by comparing the measured cell parameters with the ones obtained by numerical simulations. The combined effects of different conduction band alignments at heterolnterfaces, carrier lifetime in the CIGS bulk, and ZMO layer thickness are analyzed. The impact on the cell performance of acceptor defects at the CIGS/Zn(O,S) interface is also studied. The optimal ZMO thickness corresponding to the highest conversion efficiency is then calculated for all the different conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
