Liquid CO2-based coating for dense CuInxGa1−xS2 film fabrication

Eduardus Budi Nursanto, Se Jin Park, Yun Jeong Hwang, Jaehoon Kim, Byoung Koun Min

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    A liquid CO2 (l-CO2)–based coating technique is used for the pore-filling of a porous copper indium gallium sulfide (CuInxGa1−xS2, CIGS) film synthesized by a solution-based method. In the l-CO2–based coating, copper and indium precursors dissolved in l-CO2 are deposited on the porous copper indium gallium oxide film, followed by low-temperature sulfurization. After the high-temperature sulfurization of the deposited film with the l-CO2–based coating, a highly dense CIGS film with almost complete pore-filling is obtained. The use of an indium rich solution in l-CO2 leads to the formation of near stoichiometric ratio of Cu:(In + Ga) that improves the pore filling behavior.

    Original languageEnglish
    Pages (from-to)453-459
    Number of pages7
    JournalJournal of Supercritical Fluids
    Volume120
    DOIs
    Publication statusPublished - 2017 Feb 1

    Bibliographical note

    Funding Information:
    This work was supported by the Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (No. 20143030011530 ) funded by the Korean government . The authors would also like to thank the program of the Korea Institute of Science and Technology (KIST).

    Publisher Copyright:
    © 2016 Elsevier B.V.

    Keywords

    • CuInGaS
    • Liquid CO
    • Pore-filling

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Condensed Matter Physics
    • Physical and Theoretical Chemistry

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