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Comparison of Sulfu...
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Khavari, FarazUppsala universitet,Solcellsteknik
(författare)
Comparison of Sulfur Incorporation into CuInSe(2)and CuGaSe(2)Thin-Film Solar Absorbers
- Artikel/kapitelEngelska2020
Förlag, utgivningsår, omfång ...
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2020-09-29
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WILEY-V C H VERLAG GMBH,2020
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:uu-439116
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-439116URI
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https://doi.org/10.1002/pssa.202000415DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Herein, sulfurization of CuInSe(2)and CuGaSe2(CGSe) absorber layers is compared to improve the understanding of sulfur incorporation into Cu(In,Ga)Se(2)films by annealing in a sulfur atmosphere. It is found for Cu-poor CuInSe(2)that for an annealing temperature of 430 degrees C, sulfur is incorporated into the surface of the absorber and forms an inhomogeneous CuIn(S,Se)(2)layer. In addition, at 530 degrees C, a surface layer of CuInS(2)is formed. In contrast, for Cu-poor CuGaSe(2)samples, S can only be introduced at 530 degrees C, mainly forming an alloy of CuGa(S,Se)(2), where no closed CuGaS(2)layer is found. In Cu-rich CuGaSe(2)samples, however, selenium is substituted by S already at 330 degrees C, which can be explained by a rapid phase transformation of Cu2 - xSe into Cu2 - x(S,Se). This transformation facilitates S in-diffusion and catalyzes CuGa(S,Se)(2)formation, likewise that previously reported to occur in CuInSe2. Finally, the Cu-poor CuInSe(2)solar cell performance is improved by the sulfurization step at 430 degrees C, whereas for the 530 degrees C sample, a decreasing fill factor and short-circuit current density are observed, indicating lower diffusion length accompanied by possible formation of an electron transport barrier. In contrast, the electrical characteristics deteriorate for all sulfurized Cu-poor CuGaSe(2)cells.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Keller, JanUppsala universitet,Solcellsteknik(Swepub:uu)janke498
(författare)
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Larsen, Jes KUppsala universitet,Solcellsteknik(Swepub:uu)jenla503
(författare)
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Sopiha, KostiantynUppsala universitet,Solcellsteknik(Swepub:uu)kosso407
(författare)
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Törndahl, Tobias,1974-Uppsala universitet,Solcellsteknik(Swepub:uu)totor079
(författare)
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Edoff, Marika,1965-Uppsala universitet,Solcellsteknik(Swepub:uu)maribode
(författare)
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Uppsala universitetSolcellsteknik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Physica Status Solidi (a) applications and materials science: WILEY-V C H VERLAG GMBH217:221862-63001862-6319
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