Enhanced photovoltaic performances of graphene/Si solar cells by insertion of a MoS<inf>2</inf> thin film

Yuka Tsuboi, Feijiu Wang, Daichi Kozawa, Kazuma Funahashi, Shinichiro Mouri, Yuhei Miyauchi, Taishi Takenobu, Kazunari Matsuda

    Research output: Contribution to journalArticle

    72 Citations (Scopus)

    Abstract

    Transition-metal dichalcogenides exhibit great potential as active materials in optoelectronic devices because of their characteristic band structure. Here, we demonstrated that the photovoltaic performances of graphene/Si Schottky junction solar cells were significantly improved by inserting a chemical vapor deposition (CVD)-grown, large MoS<inf>2</inf> thin-film layer. This layer functions as an effective electron-blocking/hole-transporting layer. We also demonstrated that the photovoltaic properties are enhanced with the increasing number of graphene layers and the decreasing thickness of the MoS<inf>2</inf> layer. A high photovoltaic conversion efficiency of 11.1% was achieved with the optimized trilayer-graphene/MoS<inf>2</inf>/n-Si solar cell.

    Original languageEnglish
    Pages (from-to)14476-14482
    Number of pages7
    JournalNanoscale
    Volume7
    Issue number34
    DOIs
    Publication statusPublished - 2015 Sep 14

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    Graphene
    Solar cells
    Thin films
    Optoelectronic devices
    Band structure
    Conversion efficiency
    Transition metals
    Chemical vapor deposition
    Electrons

    ASJC Scopus subject areas

    • Materials Science(all)

    Cite this

    Tsuboi, Y., Wang, F., Kozawa, D., Funahashi, K., Mouri, S., Miyauchi, Y., ... Matsuda, K. (2015). Enhanced photovoltaic performances of graphene/Si solar cells by insertion of a MoS<inf>2</inf> thin film. Nanoscale, 7(34), 14476-14482. https://doi.org/10.1039/c5nr03046c

    Enhanced photovoltaic performances of graphene/Si solar cells by insertion of a MoS<inf>2</inf> thin film. / Tsuboi, Yuka; Wang, Feijiu; Kozawa, Daichi; Funahashi, Kazuma; Mouri, Shinichiro; Miyauchi, Yuhei; Takenobu, Taishi; Matsuda, Kazunari.

    In: Nanoscale, Vol. 7, No. 34, 14.09.2015, p. 14476-14482.

    Research output: Contribution to journalArticle

    Tsuboi, Y, Wang, F, Kozawa, D, Funahashi, K, Mouri, S, Miyauchi, Y, Takenobu, T & Matsuda, K 2015, 'Enhanced photovoltaic performances of graphene/Si solar cells by insertion of a MoS<inf>2</inf> thin film', Nanoscale, vol. 7, no. 34, pp. 14476-14482. https://doi.org/10.1039/c5nr03046c
    Tsuboi Y, Wang F, Kozawa D, Funahashi K, Mouri S, Miyauchi Y et al. Enhanced photovoltaic performances of graphene/Si solar cells by insertion of a MoS<inf>2</inf> thin film. Nanoscale. 2015 Sep 14;7(34):14476-14482. https://doi.org/10.1039/c5nr03046c
    Tsuboi, Yuka ; Wang, Feijiu ; Kozawa, Daichi ; Funahashi, Kazuma ; Mouri, Shinichiro ; Miyauchi, Yuhei ; Takenobu, Taishi ; Matsuda, Kazunari. / Enhanced photovoltaic performances of graphene/Si solar cells by insertion of a MoS<inf>2</inf> thin film. In: Nanoscale. 2015 ; Vol. 7, No. 34. pp. 14476-14482.
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