This work reports recent results related to Cu(In,Ga)Se2 solar cells obtained using an alternative approach for CIGS growth. Such original approach consists of sputtering deposition of the metal elements combined with selenium co-evaporation, which allows deposition time of the CIGS layer lower than 30 min, matching industrial application requirements. The cylindrical geometry of the deposition chamber can be exploited for a continuous process (roll-to roll approach) and different substrates can be used (11x14 cm2 soda lime glass and 120x14 cm2 stainless steel). Minimodules on glass substrates composed by 14 cells (37x4 mm2) were fabricated obtaining a maximum open circuit voltage of 6681 mV. Test solar cells of 0.5 cm2 on flexible stainless steel substrates have shown an efficiency of 11.9%.
Acciarri, M., Binetti, S., LE DONNE, A., Vodopivec, B., Miglio, L., Marchionna, S., et al. (2012). Cu(In,Ga)Se2 Thin Film Deposition for Solar Cell Based on a Hybrid Sputtering/Evaporation Method. In Proceeding of 27th EUPVSEC (pp.2342-2345) [10.4229/27thEUPVSEC2012-3CV.1.44].
Cu(In,Ga)Se2 Thin Film Deposition for Solar Cell Based on a Hybrid Sputtering/Evaporation Method
ACCIARRI, MAURIZIO FILIPPO;BINETTI, SIMONA OLGA;LE DONNE, ALESSIA;MIGLIO, LEONIDA;
2012
Abstract
This work reports recent results related to Cu(In,Ga)Se2 solar cells obtained using an alternative approach for CIGS growth. Such original approach consists of sputtering deposition of the metal elements combined with selenium co-evaporation, which allows deposition time of the CIGS layer lower than 30 min, matching industrial application requirements. The cylindrical geometry of the deposition chamber can be exploited for a continuous process (roll-to roll approach) and different substrates can be used (11x14 cm2 soda lime glass and 120x14 cm2 stainless steel). Minimodules on glass substrates composed by 14 cells (37x4 mm2) were fabricated obtaining a maximum open circuit voltage of 6681 mV. Test solar cells of 0.5 cm2 on flexible stainless steel substrates have shown an efficiency of 11.9%.
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