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Inclusion of Water in Cu(In, Ga)Se-2 Absorber Material During Accelerated Lifetime Testing

Tijdschriftbijdrage - Tijdschriftartikel

To determine if Cu(In, Ga)Se-2 (CIGS) can be submitted to the constraints that will be imposed on the solar materials of the future by an ever growing demand and necessity, we produced ultrathin (500 nm) single-stage coevaporated CIGS solar cells doped with varying amounts and types of alkali atoms. We subjected them to accelerated lifetime testing. In the present work, we observed the seeping of water into the grain boundaries which could be identified as one of the main culprits for performance degradation. In addition, this phenomenon could only be observed when alkali atoms were present in the absorber layer.
Tijdschrift: ACS Applied Energy Materials
ISSN: 2574-0962
Issue: 6
Volume: 3
Pagina's: 5120 - 5125
Jaar van publicatie:2020
Trefwoorden:ultrathin solar cells, CIGS, alkali doping, materials reliability, effect of water, atom probe
BOF-keylabel:ja
IOF-keylabel:ja
BOF-publication weight:3
CSS-citation score:2
Authors from:Government, Higher Education, Private
Toegankelijkheid:Open