Rapid supersonic spraying of Cu(In,Ga)(S,Se)2 nanoparticles to fabricate a solar cell with 5.49% conversion efficiency

Jung Jae Park, Jong Gun Lee, Do Yeon Kim, Jong Hyuk Lee, Jae Ho Yun, Jihye Gwak, Young Joo Eo, Ara Cho, Mark T. Swihart, Salem S. Al-Deyab, Se Jin Ahn, Dong Hwan Kim, Sam S. Yoon

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    We demonstrate production of high-quality Cu(InGa)(SSe)2 (CIGSSe) films by high-rate supersonic spray deposition. This technique is unique in creating particle-based films without introducing impurities, because no additives or binders are used. The thin film deposition process was investigated computationally, to understand the pulverization of the incoming particles. These simulations were consistent with experimental observations. Grain growth was improved by adding a 300-nm copper layer atop the CIGSSe film; selenization of the resulting bilayer produced a CuSe liquid flux that assisted the sintering process. The final CIGSSe film-based solar cell had a conversion efficiency of 5.49% with Jsc = 18.73 mA/cm2, Voc = 0.488 V, and FF = 59.99% in an active area of 0.44 cm2.

    Original languageEnglish
    Pages (from-to)44-54
    Number of pages11
    JournalActa Materialia
    Volume123
    DOIs
    Publication statusPublished - 2017 Jan 15

    Bibliographical note

    Publisher Copyright:
    © 2016 Acta Materialia Inc.

    Keywords

    • CIGS film
    • CIGS nanoparticle
    • Impact bonding
    • Kinetic spray
    • Supersonic flow

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Polymers and Plastics
    • Metals and Alloys

    Fingerprint

    Dive into the research topics of 'Rapid supersonic spraying of Cu(In,Ga)(S,Se)2 nanoparticles to fabricate a solar cell with 5.49% conversion efficiency'. Together they form a unique fingerprint.

    Cite this