Design and fabrication of photonic crystals in epitaxial free silicon for ultrathin solar cells

Xianqin Meng, Valerie Depauw, Guillaume Gomard, Ounsi El Daif, Christos Trompoukis, Emmanuel Drouard, Alain Fave, Frederic Dross, Ivan Gordon, Christian Seassal

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In this paper, we present the integration of an absorbing photonic crystal within a thin film photovoltaic solar cell. Optical simulations performed on a complete solar cell revealed that patterning the epitaxial crystalline silicon active layer as a 1D and 2D photonic crystal enabled to increase its integrated absorption by 37%abs and 68%abs between 300 nm and 1100 nm, compared to a similar but unpatterned stack. In order to fabricate such promising cells, a specific fabrication processes based on holographic lithography, inductively coupled plasma etching and reactive ion etching has been developed and implemented to obtain ultrathin patterned solar cells.

    Original languageEnglish
    Title of host publicationAsia Communications and Photonics Conference and Exhibition, ACP 2011
    Publication statusPublished - 1 Dec 2011
    EventAsia Communications and Photonics Conference and Exhibition, ACP 2011 - Shanghai, China
    Duration: 13 Nov 201116 Nov 2011

    Publication series

    NameOptics InfoBase Conference Papers
    ISSN (Electronic)2162-2701

    Other

    OtherAsia Communications and Photonics Conference and Exhibition, ACP 2011
    CountryChina
    CityShanghai
    Period13/11/1116/11/11

      Fingerprint

    Keywords

    • Epitaxial crystalline silicon
    • Holographic lithography
    • Photonic crystals
    • Photovoltaics
    • Thin-film devices and applications

    ASJC Scopus subject areas

    • Instrumentation
    • Atomic and Molecular Physics, and Optics

    Cite this

    Meng, X., Depauw, V., Gomard, G., Daif, O. E., Trompoukis, C., Drouard, E., Fave, A., Dross, F., Gordon, I., & Seassal, C. (2011). Design and fabrication of photonic crystals in epitaxial free silicon for ultrathin solar cells. In Asia Communications and Photonics Conference and Exhibition, ACP 2011 (Optics InfoBase Conference Papers).