Femtosecond laser pulses for photovoltaic bottom-up strategies
- A bottom-up approach is presented for the production of arrays of indium islands on a molybdenum layer on glass using 30-fs laser pulses at 790 nm wavelength. The indium islands can serve as micro-sized precursors for indium compounds such as copper-indium-gallium-diselenide (CIGSe) used in photovoltaics. Molybdenum is the standard back contact material of CIGSe solar cells. Femtosecond laser ablation of glass and a subsequent deposition of a molybdenum film or direct laser processing of the molybdenum film both allow the preferential nucleation and growth of indium islands at the predefined locations in a following indium-based physical vapor deposition (PVD) process. A proper choice of laser and deposition parameters ensures the controlled growth of indium islands exclusively at the laser ablated spots. Based on a statistical analysis, these results are compared to the non-structured molybdenum surface, leading to randomly grown indium islands after PVD.
Autor*innen: | Jörg KrügerORCiD |
---|---|
Koautor*innen: | Stefan Andree, Alena Knak, Jörn BonseORCiD, Christian Symietz, F. Ringleb, K. Eylers, T. Teubner, T. Boeck, B. Heidmann, S. Kämmer, M. Schmid |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2017 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik |
Freie Schlagwörter: | CIGSe; Copper-indium-gallium-diselenide; Femtosecond laser; Indium preferential nucleation; Photovoltaics |
Veranstaltung: | 7th European Conference on Applications of Femtosecond Lasers in Materials Science (FemtoMat 2017) |
Veranstaltungsort: | Mauterndorf, Austria |
Beginndatum der Veranstaltung: | 20.03.2017 |
Enddatum der Veranstaltung: | 22.03.2017 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 30.03.2017 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |