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Influence of spacial and temporal laser beam characteristics on thin-film ablation

24th European Photovoltaic Solar Energy Conference and Exhibition, 2009, p.3087

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Title:
Influence of spacial and temporal laser beam characteristics on thin-film ablation
Author: Westin, Per-Oskar ; Schmidt, Sarah C. ; Hüske, Marc ; Edoff, Marika
Subjects: Contact ; Cu(InGa)Se2 ; Electrical engineering, electronics and photonics ; Electronics ; Elektronik ; Elektroteknik, elektronik och fotonik ; Laser processing ; TECHNOLOGY ; TEKNIKVETENSKAP
Is Part Of: 24th European Photovoltaic Solar Energy Conference and Exhibition, 2009, p.3087
Description: ABSTRACT: In an endeavor to explore the use of laser scribing to replace mechanical scribing in CIGS thin-film PV module production we have evaluated the possibility of P3 patterning using a picosecond laser. We found that picosecond laser scribing can be used to remove the semiconductor layers ZnO:Al and CIGS simultaneously as well as selectively removing only the ZnO:Al layer. Selective removal was deemed superior both from a processing point of view and from electrical device results. Picosecond patterning resulted in a clean and sharply defined P3 isolation scribe with minimal damage to the underlying CIGS layer. Devices made during this work were in part patterned uniquely by laser methods, including the P2 pattern.
Language: English
Identifier: ISBN: 9783936338256
ISBN: 3936338256
DOI: 10.4229/24thEUPVSEC2009-3BV.5.91
Source: SWEPUB Freely available online

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