Femtosecond laser-assisted photovoltaic bottom-up strategies
- A promising technology in photovoltaics is based on micro-concentrator solar cells, where the photovoltaic active area is realized as an array of sub-millimeter sized thin-film solar cells. Different approaches to produce micro-sized precursors of CIGSe absorbers on molybdenum are presented using 30-fs laser pulses at 790 nm wavelength. On the one hand, a multi pulse surface structuring of the molybdenum or the underlying glass substrate and a subsequent physical vapor deposition (PVD) process were used for a site-selective aggregation of indium droplets. On the other hand, a single pulse laser-induced forward transfer (LIFT) was utilized to selectively deposit combined copper/indium/gallium precursor pixels on the molybdenum back contact of the solar cell. It was demonstrated that a postprocessing of the laser-generated micro-sized precursors results in an array of working CIGSe solar cells with an efficiency of 2.9% for 1 sun Illumination.
Autor*innen: | Jörg KrügerORCiD |
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Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2018 |
Organisationseinheit der BAM: | 6 Materialchemie |
6 Materialchemie / 6.2 Material- und Oberflächentechnologien | |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik |
Freie Schlagwörter: | CIGSe; Femtosecond laser patterning; Laser-induced forward transfer; Light concentration; Micro solar cell |
Themenfelder/Aktivitätsfelder der BAM: | Energie |
Veranstaltung: | Leibniz-Institut für Oberflächenmodifizierung (IOM), Institutskolloquium |
Veranstaltungsort: | Leipzig, Germany |
Beginndatum der Veranstaltung: | 29.11.2018 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 03.12.2018 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |