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Effects of Cu2−xS phase removal on surface potential of Cu2ZnSnS4 thin-films grown by electroplating.

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Title: Effects of Cu2−xS phase removal on surface potential of Cu2ZnSnS4 thin-films grown by electroplating.
Authors: Kim, Gee Yeong1, Kim, Ju Ri1, Jo, William1 wmjo@ewha.ac.kr, Lee, Kee Doo2, Kim, Jin Young2, Nguyen, Trang Thi Thu1, Yoon, Seokhyun1
Source: Current Applied Physics. Dec2014, Vol. 14 Issue 12, p1665-1668. 4p.
Subjects: Copper compounds, Band gaps, Surface potential, Thin films, Electroplating, Absorption coefficients, Potassium cyanide
Abstract: Cu 2 ZnSnS 4 (CZTS) has an optical band gap of 1.4–1.5 eV, which is similar to that of Cu(In,Ga)Se 2 (CIGS), and a high absorption coefficient (>10 4 cm −1 ) in the visible light region. In previous reports, CIGS thin-film solar cells have been shown to improve the performance of the device since the secondary phase is removed by Potassium cyanide (KCN) etching treatment. Therefore, in this study we applied a KCN etching treatment on CZTS and measured the effects. We confirmed the removal of Cu 2−x S via Kelvin probe force microscopy (KPFM) and Raman scattering spectroscopy. The effects of the experiment indicate that we can define with precision the location of the secondary phases, and therefore the control of the secondary phases will be easier and more efficient. Such capabilities could improve the solar cell performance of CZTS thin-films. [ABSTRACT FROM AUTHOR]
Copyright of Current Applied Physics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Effects of Cu2−xS phase removal on surface potential of Cu2ZnSnS4 thin-films grown by electroplating.
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  Data: <searchLink fieldCode="AR" term="%22Kim%2C+Gee+Yeong%22">Kim, Gee Yeong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kim%2C+Ju+Ri%22">Kim, Ju Ri</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jo%2C+William%22">Jo, William</searchLink><relatesTo>1</relatesTo><i> wmjo@ewha.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Lee%2C+Kee+Doo%22">Lee, Kee Doo</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kim%2C+Jin+Young%22">Kim, Jin Young</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Nguyen%2C+Trang+Thi+Thu%22">Nguyen, Trang Thi Thu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yoon%2C+Seokhyun%22">Yoon, Seokhyun</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Current+Applied+Physics%22">Current Applied Physics</searchLink>. Dec2014, Vol. 14 Issue 12, p1665-1668. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Copper+compounds%22">Copper compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Band+gaps%22">Band gaps</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+potential%22">Surface potential</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Electroplating%22">Electroplating</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption+coefficients%22">Absorption coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Potassium+cyanide%22">Potassium cyanide</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Cu 2 ZnSnS 4 (CZTS) has an optical band gap of 1.4–1.5 eV, which is similar to that of Cu(In,Ga)Se 2 (CIGS), and a high absorption coefficient (>10 4 cm −1 ) in the visible light region. In previous reports, CIGS thin-film solar cells have been shown to improve the performance of the device since the secondary phase is removed by Potassium cyanide (KCN) etching treatment. Therefore, in this study we applied a KCN etching treatment on CZTS and measured the effects. We confirmed the removal of Cu 2−x S via Kelvin probe force microscopy (KPFM) and Raman scattering spectroscopy. The effects of the experiment indicate that we can define with precision the location of the secondary phases, and therefore the control of the secondary phases will be easier and more efficient. Such capabilities could improve the solar cell performance of CZTS thin-films. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Current Applied Physics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.cap.2014.09.009
    Languages:
      – Code: eng
        Text: English
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        PageCount: 4
        StartPage: 1665
    Subjects:
      – SubjectFull: Copper compounds
        Type: general
      – SubjectFull: Band gaps
        Type: general
      – SubjectFull: Surface potential
        Type: general
      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Electroplating
        Type: general
      – SubjectFull: Absorption coefficients
        Type: general
      – SubjectFull: Potassium cyanide
        Type: general
    Titles:
      – TitleFull: Effects of Cu2−xS phase removal on surface potential of Cu2ZnSnS4 thin-films grown by electroplating.
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            NameFull: Kim, Gee Yeong
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            NameFull: Kim, Ju Ri
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            NameFull: Jo, William
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            NameFull: Lee, Kee Doo
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            NameFull: Kim, Jin Young
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            – D: 01
              M: 12
              Text: Dec2014
              Type: published
              Y: 2014
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              Value: 14
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            – TitleFull: Current Applied Physics
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