A method to determine the optical functions of thin-film CuIn1-xGaxSe2 alloys was provided in the paper "Optical characterization of CuIn1-xGaxSe2 alloy thin films by spectroscopic ellipsometry." The optical functions were obtained and the effect of Ga content on the electronic transitions of CuIn1-xGaxSe2 was discussed. We indicate the mistake of their method in determining the critical point energies and discuss the reason for using standard analytic line shape, epsilon(omega)=C-Ae(i phi)(omega-E+i Gamma)(n), in this comment. (c) 2006 American Institute of Physics.
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Inst. de Cie. de Mat. de Madrid, Consejo Sup. de Invest. Cientfficas, E-28049 Cantoblanco, Madrid, SpainInst. de Cie. de Mat. de Madrid, Consejo Sup. de Invest. Cientfficas, E-28049 Cantoblanco, Madrid, Spain
Cascales, C.
Zaldo, C.
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Inst. de Cie. de Mat. de Madrid, Consejo Sup. de Invest. Cientfficas, E-28049 Cantoblanco, Madrid, SpainInst. de Cie. de Mat. de Madrid, Consejo Sup. de Invest. Cientfficas, E-28049 Cantoblanco, Madrid, Spain
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Department of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of ToledoDepartment of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of Toledo
Abdel-Rahman A.Ibdah
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Prakash Koirala
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Puruswottam Aryal
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Puja Pradhan
Michael J.Heben
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Department of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of ToledoDepartment of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of Toledo
Michael J.Heben
Nikolas J.Podraza
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Department of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of ToledoDepartment of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of Toledo
Nikolas J.Podraza
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Sylvain Marsillac
Robert W.Collins
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Department of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of ToledoDepartment of Physics & Astronomy and Center for Photovoltaics Innovation & Commercialization, University of Toledo
机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaCity Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
Chen, Zhiwen
Lai, Joseph K. L.
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City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaCity Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
Lai, Joseph K. L.
Shek, Chan-Hung
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City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaCity Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China