Next generation interconnective laser patterning of CIGS thin ﬁlm modules
2011 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 95, no 4, 1062-1068 p.Article in journal (Refereed) Published
Laser patterning of thin ﬁlm solar cells has proven technically feasible for all layers but still remains a challengingtopic for research and development. We present a method where P2 laser patterning of CIGS thin ﬁlm solar modulesis performed after deposition of the ZnO:Al layer, as opposed to the current state-of-the-art where patterning is per-formed before the ZnO:Al layer is deposited. This method takes full advantage of the potential of laser processing andworks by creating an interconnecting scribe line that ”welds” the ZnO:Al and CIGS layers into an electrical contact.In this work we present experimental results of this process on 5 diﬀerent sets of CIGS with slightly varying thicknessand Cu content. While optimisation of the process with respect to the various layers has not been performed, the initialresults for CIGS thin ﬁlm modules show working experimental modules in each set. The best experimental modulehas a Fill Factor of 71 % and its performance is within the standard deviation of mechanically patterned references.An experimental submodule of 30x30 cm2 size with 10 % eﬃciency was manufactured.
Place, publisher, year, edition, pages
2011. Vol. 95, no 4, 1062-1068 p.
CIGS, Module Technology, Laser Patterning
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Engineering Science with specialization in Electronics
IdentifiersURN: urn:nbn:se:uu:diva-134489DOI: 10.1016/j.solmat.2010.11.015ISI: 000288779000005OAI: oai:DiVA.org:uu-134489DiVA: diva2:372661