DLTS investigations on CIGS solar cells from an inline co-evaporation system with RbF post-deposition treatment

Autor:	Helder Tim, Kanevce Ana, Bauer Andreas, Zinßer Mario, Paetel Stefan, Friedlmeier Theresa Magorian, Powalla Michael
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	cigs solar cells rbf-pdt defects dlts passivation Renewable energy sources TJ807-830
Zdroj:	EPJ Photovoltaics, Vol 13, p 7 (2022)
Druh dokumentu:	article
ISSN:	2105-0716
DOI:	10.1051/epjpv/2022003
Popis:	In this study, Deep Level Transient Spectroscopy (DLTS) measurements have been performed on Cu(In,Ga)Se2 (CIGS) solar cells from an inline co-evaporation system. The focus of this investigation is directed on the effect of rubidium-fluoride (RbF)-post-deposition treatment (PDT) on the defects in the CIGS absorber layer. Different traps can be identified and their properties are calculated. Herein, different methods of evaluations have been used to verify the results. Specifically, one minority trap around 400 meV was found to show a significant reduction of the trap density due to the alkali treatment. In contrast, a majority trap at approximately 600 meV is unaffected.
Databáze:	Directory of Open Access Journals
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