Journal Article

FZJ-2023-01527

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Thermal Stimulation of Reverse Breakdown in CIGS Solar Cells

Vaas, T. S.FZJ* ; Pieters, B. E.FZJ* ; Gerber, A.FZJ* ; Rau, U.FZJ*

2023
IEEE New York, NY

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Please use a persistent id in citations: doi:10.1109/JPHOTOV.2023.3240680

Abstract: The underlying mechanisms of the initial stages of hot-spot and therefore defect creation due to reverse breakdown in Cu(In,Ga)S e2 solar cells are not well understood. We test the thesis, that permanent damage is created due to a positive feedback loop of local temperature enhancing the local current and vice versa, resulting in a thermal runaway. We present experiments on reverse stress with simultaneously introducing local heat. Depending on the temperature profile of the introduced heat, the local current density is enhanced and leads to a gain in the local temperature. This feedback loop is shown to lead to reverse breakdown, causing permanent damage.

Keyword(s): Energy (1st)

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Contributing Institute(s):

1. Photovoltaik (IEK-5)

Research Program(s):

1. 1214 - Modules, stability, performance and specific applications (POF4-121) (POF4-121)
2. LLEC - Living Lab Energy Campus (LLEC-2018-2023) (LLEC-2018-2023)

Appears in the scientific report 2023

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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