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Reflective Back Con...
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Gouillart, LouisUniv Paris Sud, Ctr Nanosci & Nanotechnol C2N, CNRS, F-91120 Palaiseau, France; CNRS, UMR 9006, IPVF, F-91120 Palaiseau, France
(author)
Reflective Back Contacts for Ultrathin Cu(In,Ga)Se2-Based Solar Cells
- Article/chapterEnglish2020
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LIBRIS-ID:oai:DiVA.org:uu-414304
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414304URI
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https://doi.org/10.1109/JPHOTOV.2019.2945196DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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We report on the development of highly reflective back contacts (RBCs) made of multilayer stacks for ultrathin CIGS solar cells. Two architectures are compared: they are made of a silver mirror coated either with a single layer of In 2 O 3 :Sn (ITO) or with a bilayer of ZnO:Al/ITO. Due to the improvement of CIGS rear reflectance, both back contacts result in a significant external quantum efficiency enhancement, in agreement with optical simulations. However, solar cells fabricated with Ag/ITO back contacts exhibit a strong shunting behavior. The key role of the ZnO:Al layer to control the morphology of the top ITO layer and to avoid silver diffusion through the back contact is highlighted. For a 500-nm-thick CIGS layer, this optimized RBC leads to a best cell with a short-circuit current of 27.8 mA/cm 2 (+2.2 mA/cm 2 as compared to a Mo back contact) and a 12.2%-efficiency (+2.5% absolute).
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Chen, Wei-ChaoUppsala universitet,Solcellsteknik(Swepub:uu)chewe640
(author)
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Cattoni, AndreaUniv Paris Sud, Ctr Nanosci & Nanotechnol C2N, CNRS, F-91120 Palaiseau, France
(author)
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Goffard, JulieUniv Paris Sud, Ctr Nanosci & Nanotechnol C2N, CNRS, F-91120 Palaiseau, France
(author)
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Riekehr, LarsUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)larri928
(author)
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Keller, JanUppsala universitet,Solcellsteknik(Swepub:uu)janke498
(author)
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Jubault, MarieEDF R&D, IPVF, F-91120 Palaiseau, France
(author)
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Naghavi, NegarCNRS, UMR 9006, IPVF, F-91120 Palaiseau, France
(author)
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Edoff, Marika,1965-Uppsala universitet,Solcellsteknik(Swepub:uu)maribode
(author)
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Collin, StéphaneUniv Paris Sud, Ctr Nanosci & Nanotechnol C2N, CNRS, F-91120 Palaiseau, France
(author)
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Univ Paris Sud, Ctr Nanosci & Nanotechnol C2N, CNRS, F-91120 Palaiseau, France; CNRS, UMR 9006, IPVF, F-91120 Palaiseau, FranceSolcellsteknik
(creator_code:org_t)
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In:IEEE Journal of Photovoltaics10:1, s. 250-2542156-33812156-3403
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Gouillart, Louis
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Chen, Wei-Chao
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Cattoni, Andrea
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Goffard, Julie
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Riekehr, Lars
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Keller, Jan
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Jubault, Marie
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Naghavi, Negar
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Edoff, Marika, 1 ...
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Collin, Stéphane
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