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dc.contributor.authorMartí Valls, Rafael Francisco
dc.contributor.authorOliveira, L.
dc.contributor.authorLyubenova, Teodora
dc.contributor.authorTodorov, Teodor Krassimirov
dc.contributor.authorChassaing, E.
dc.contributor.authorLincot, D.
dc.contributor.authorCarda Castelló, Juan Bautista
dc.identifier.citationMARTÍ, R., et al. Preparation of Cu (In, Ga) Se 2 photovoltaic absorbers by an aqueous metal selenite co-precipitation route. Journal of Alloys and Compounds, 2015, vol. 650, p. 907-911.ca_CA
dc.description.abstractIn this paper, we report a novel and simple solution-based approach for the fabrication of chalcopyrite Cu(In,Ga)Se2 thin film solar cells. An aqueous co-precipitation method based on metal selenites, M2(SeO3)x (M = Cu, In, Ga) precursors was investigated. The resulting powder, dispersed in a binder to form an ink, was coated on a substrate by doctor blade technique. A soft annealing treatment allowed the reduction of metal selenites into selenides. Further rapid thermal processing (RTP) achieved crystalline chalcopyrite absorber. The obtained layer provides good compositional control and adequate morphology for solar cell applications. The water-based synthesis is a sustainable and simple procedure, and together with doctor blade printing, provides a potential cost-effective advantage over conventional fabrication processes (vacuum-based deposition techniques). The short circuit current (JSC), open circuit voltage (VOC), fill factor (FF), and total area power conversion efficiency (Eff.) of the device are 26 mA/cm2, 450 mV, 62%, and 7.2%, respectively. The effective band gap of 1.12 eV confirmed Ga-incorporation in the CIGS crystal lattice.ca_CA
dc.description.sponsorShipThis work was supported by the Spanish Ministry of Science and Competiveness under INNPACTO Program (IPT-2011-0913- 920000). The authors would like to thanks to Manuel Ocana Jurado ~ (ICMS-CISC) for his help in the XPS measurements. L. Oliveira would like to thank the support of the National Council for Scientific and Technological Development (CNPq) e Brazil.ca_CA
dc.format.extent18 p.ca_CA
dc.relation.isPartOfJournal of Alloys and Compounds, 2015, vol. 650ca_CA
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subjectCo-precipitation synthesisca_CA
dc.subjectAmorphous powderca_CA
dc.subjectReduction processca_CA
dc.titlePreparation of Cu(In,Ga)Se2 photovoltaic absorbers by an aqueous metal selenite co-precipitation routeca_CA

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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España