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- Li, Shu-YiUppsala universitet,Fasta tillståndets elektronik (author)
Optical properties of Cu2ZnSn(SxSe1-x)(4) solar absorbers : Spectroscopic ellipsometry and ab initio calculations
- Article/chapterEnglish2017
Publisher, publication year, extent ...
- AIP Publishing,2017
- electronicrdacarrier
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- LIBRIS-ID:oai:DiVA.org:uu-316037
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-316037URI
- https://doi.org/10.1063/1.4973353DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202435URI
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- Language:English
- Summary in:English
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Notes
- QC 20170306
- Dielectric functions of Cu2ZnSn(SxSe1-x)(4) thin film absorbers with varied x were determined by spectroscopic ellipsometry and ab initio calculations. From the combination of experimental and theoretical studies, the fundamental interband transition energy E-0 (similar to 1-1.5 eV) and the next following transition energy E-1 (similar to 2-3 eV) were identified and found to blue-shift with increasing sulfur anion content, while keeping the energy separation E-1 - E-0 almost constant, similar to 1.4 eV from experiments, and 1 eV from theory. In addition, the average dielectric responses were found to decrease with sulfur anion content from both theoretical and experimental results. The Tauc optical bandgap value E-g determined on samples prepared on Mo and soda lime glass substrate showed a positive linear relationship between x and bandgap E-g. The bandgap bowing factor determined from the theoretical data is 0.09 eV. (C) 2017 Author(s).
Subject headings and genre
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
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- Zamulko, SergiyUniv Oslo, Dept Phys, Ctr Mat Sci & Nanotechnol, NO-0316 Oslo, Norway. (author)
- Persson, ClasKTH,Materialvetenskap,Univ Oslo, Norway(Swepub:kth)u16hf74r (author)
- Ross, NilsUppsala universitet,Fasta tillståndets elektronik,Univ Oslo, Dept Phys, Ctr Mat Sci & Nanotechnol, NO-0316 Oslo, Norway.(Swepub:uu)nilro891 (author)
- Larsen, Jes K.Uppsala universitet,Fasta tillståndets elektronik(Swepub:uu)jenla503 (author)
- Platzer-Björkman, CharlotteUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)chpla516 (author)
- Uppsala universitetFasta tillståndets elektronik (creator_code:org_t)
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- In:Applied Physics Letters: AIP Publishing110:20003-69511077-3118
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