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Synthesis of colloidal CuInSe2 nanocrystals films for photovoltaic applications

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Title: Synthesis of colloidal CuInSe2 nanocrystals films for photovoltaic applications
Authors: de Kergommeaux, Antoine1,2 antoine@dekergommeaux.com, Fiore, Angela1, Bruyant, Nicolas1, Chandezon, Frédéric1, Reiss, Peter1 peter.reiss@cea.fr, Pron, Adam1, de Bettignies, Rémi2, Faure-Vincent, Jérôme1
Source: Solar Energy Materials & Solar Cells. May2011 Supplement, Vol. 95, p39-43. 5p.
Subject Terms: *Photovoltaic power generation, *Solar cells, *Chemical reactions, Copper indium selenide, Nanocrystals, Thin films, Coating processes, Schottky barrier diodes
Abstract: Abstract: We synthesise 7nm CuInSe2 nanocrystals of low size and shape dispersion using copper(I) chloride, indium(III) chloride and selenourea as the precursors. The obtained nanocrystals are deposited on indium tin oxide (ITO) covered glass by means of layer-by-layer dip-coating. After each deposition step, a ligand exchange process with 1,2-ethanedithiol (EDT) is carried out. The new ligands interconnect the nanocrystals, which therefore become insoluble during subsequent dip-coating steps. Furthermore, the small EDT molecules replace the long insulating alkyl chains of the oleylamine stabilizing ligands used during the synthesis. I/V measurements of a 1μm thick film sandwiched between the ITO substrate and an aluminium electrode show a current density of 1μA/cm2 at 1V in the dark, which increases to 16μA/cm2 under illumination with white light. [Copyright &y& Elsevier]
Copyright of Solar Energy Materials & Solar Cells 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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  Data: Synthesis of colloidal CuInSe<subscript>2</subscript> nanocrystals films for photovoltaic applications
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  Data: <searchLink fieldCode="AR" term="%22de+Kergommeaux%2C+Antoine%22">de Kergommeaux, Antoine</searchLink><relatesTo>1,2</relatesTo><i> antoine@dekergommeaux.com</i><br /><searchLink fieldCode="AR" term="%22Fiore%2C+Angela%22">Fiore, Angela</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bruyant%2C+Nicolas%22">Bruyant, Nicolas</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chandezon%2C+Frédéric%22">Chandezon, Frédéric</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Reiss%2C+Peter%22">Reiss, Peter</searchLink><relatesTo>1</relatesTo><i> peter.reiss@cea.fr</i><br /><searchLink fieldCode="AR" term="%22Pron%2C+Adam%22">Pron, Adam</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22de+Bettignies%2C+Rémi%22">de Bettignies, Rémi</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Faure-Vincent%2C+Jérôme%22">Faure-Vincent, Jérôme</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Solar+Energy+Materials+%26+Solar+Cells%22">Solar Energy Materials & Solar Cells</searchLink>. May2011 Supplement, Vol. 95, p39-43. 5p.
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  Data: *<searchLink fieldCode="DE" term="%22Photovoltaic+power+generation%22">Photovoltaic power generation</searchLink><br />*<searchLink fieldCode="DE" term="%22Solar+cells%22">Solar cells</searchLink><br />*<searchLink fieldCode="DE" term="%22Chemical+reactions%22">Chemical reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Copper+indium+selenide%22">Copper indium selenide</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocrystals%22">Nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Coating+processes%22">Coating processes</searchLink><br /><searchLink fieldCode="DE" term="%22Schottky+barrier+diodes%22">Schottky barrier diodes</searchLink>
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  Label: Abstract
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  Data: Abstract: We synthesise 7nm CuInSe2 nanocrystals of low size and shape dispersion using copper(I) chloride, indium(III) chloride and selenourea as the precursors. The obtained nanocrystals are deposited on indium tin oxide (ITO) covered glass by means of layer-by-layer dip-coating. After each deposition step, a ligand exchange process with 1,2-ethanedithiol (EDT) is carried out. The new ligands interconnect the nanocrystals, which therefore become insoluble during subsequent dip-coating steps. Furthermore, the small EDT molecules replace the long insulating alkyl chains of the oleylamine stabilizing ligands used during the synthesis. I/V measurements of a 1μm thick film sandwiched between the ITO substrate and an aluminium electrode show a current density of 1μA/cm2 at 1V in the dark, which increases to 16μA/cm2 under illumination with white light. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Solar Energy Materials & Solar Cells 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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        Value: 10.1016/j.solmat.2010.12.054
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      – Code: eng
        Text: English
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        PageCount: 5
        StartPage: 39
    Subjects:
      – SubjectFull: Photovoltaic power generation
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      – SubjectFull: Solar cells
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      – SubjectFull: Chemical reactions
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      – SubjectFull: Copper indium selenide
        Type: general
      – SubjectFull: Nanocrystals
        Type: general
      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Coating processes
        Type: general
      – SubjectFull: Schottky barrier diodes
        Type: general
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      – TitleFull: Synthesis of colloidal CuInSe2 nanocrystals films for photovoltaic applications
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              Text: May2011 Supplement
              Type: published
              Y: 2011
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