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Femtosecond laser-assisted fabrication of chalcopyrite micro-concentrator photovoltaics.

ABSTRACT: Micro-concentrator solar cells offer an attractive way to further enhance the efficiency of planar-cell technologies while saving absorber material. Here, two laser-based bottom-up processes for the fabrication of regular arrays of CuInSe2 and Cu(In,Ga)Se2 microabsorber islands are presented, namely one approach based on nucleation and one based on laser-induced forward transfer. Additionally, a procedure for processing these microabsorbers to functioning micro solar cells connected in parallel is demonstrated. The resulting cells show up to 2.9% efficiency and a significant efficiency enhancement under concentrated illumination.

SUBMITTER: Ringleb F

PROVIDER: S-EPMC6296429 | biostudies-other | 2018

REPOSITORIES: biostudies-other

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Femtosecond laser-assisted fabrication of chalcopyrite micro-concentrator photovoltaics.

Ringleb Franziska F Andree Stefan S Heidmann Berit B Bonse Jörn J Eylers Katharina K Ernst Owen O Boeck Torsten T Schmid Martina M Krüger Jörg J

Beilstein journal of nanotechnology 20181212

Micro-concentrator solar cells offer an attractive way to further enhance the efficiency of planar-cell technologies while saving absorber material. Here, two laser-based bottom-up processes for the fabrication of regular arrays of CuInSe<sub>2</sub> and Cu(In,Ga)Se<sub>2</sub> microabsorber islands are presented, namely one approach based on nucleation and one based on laser-induced forward transfer. Additionally, a procedure for processing these microabsorbers to functioning micro solar cells ...[more]

PMID: 30591850

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