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Title: | A multi-stack Al2O3/HfO2 design with contact openings for front surface of Cu(In,Ga)Se-2 solar cells | Authors: | BULDU KOHL, Dilara DE WILD, Jessica KOHL, Thierry BIRANT, Gizem BRAMMERTZ, Guy MEURIS, Marc POORTMANS, Jef VERMANG, Bart |
Issue Date: | 2021 | Publisher: | IEEE | Source: | 2021 IEEE 48Th Photovoltaic Specialis Conference (PVSC) , IEEE, p. 1176 -1178 | Series/Report: | IEEE Photovoltaic Specialists Conference | Abstract: | A new multi-stack approach with contact openings was investigated for front surface of Cu(In,Ga)Se-2 thin film solar cells. In this multi-stack design, a thin HfOx layer was used to protect a thicker AlOx layer from the presence of ammonia in the chemical bath deposition. The contact openings were created by using alkali solution. The lifetime decay was improved by implementing multi-stack passivation layer between CIGS/buffer layer interface. It was shown that open circuit voltage was increased by up to 30mV. | Notes: | Buldu, DG (corresponding author), Hasselt Univ Partner Solliance, Inst Mat Res IMO, Wetenschapspk 1, B-3590 Diepenbeek, Belgium.; Buldu, DG (corresponding author), Imec Div IMOMEC Partner Solliance, Wetenschapspk 1, B-3590 Diepenbeek, Belgium.; Buldu, DG (corresponding author), Energyville, Thor Pk Genk 8320, B-3600 Genk, Belgium. | Keywords: | multi-stack;front surface;passivation;CIGS;thin film photovoltaic | Document URI: | http://hdl.handle.net/1942/35905 | ISBN: | 978-1-6654-1922-2 | DOI: | 10.1109/PVSC43889.2021.9518838 | ISI #: | WOS:000701690400270 | Category: | C1 | Type: | Proceedings Paper | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
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