Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals

Jeffrey B. Chou, David P. Fenning, Yu Wang, Miguel Angel Mendez Polanco, Jonathan Hwang, Asmaa El-Faer, Firas Sammoura, Jaime Viegas, Mahmoud Rasras, Alexie M. Kolpak, Yang Shao-Horn, Sang Gook Kim

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

    Abstract

    Photoelectric hot carrier generation in metal-semiconductor junctions can enable optical-to-electrical energy conversion at photon energies below the bandgap of the semiconductor. Here, we present the simulated and experimental results of our wafer-scale Au/TiO2 metallic-semiconductor photonic crystal (MSPhC). We demonstrate a broadband sub-bandgap photoresponse with a FWHM of 235 nm centered at 590 nm due to surface plasmon absorption, and we also show a photoresponse enhancement factor of 4.5 at 639 nm compared to a flat chip. Photoresponse is also shown to increase with decreasing metal thickness down to 13 nm. Applications of our results could lead to low-cost and robust photoelectrochemical and thermo-photovoltaic devices.

    Original languageEnglish (US)
    Title of host publication2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781479979448
    DOIs
    StatePublished - Dec 14 2015
    Event42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States
    Duration: Jun 14 2015Jun 19 2015

    Other

    Other42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
    CountryUnited States
    CityNew Orleans
    Period6/14/156/19/15

    Fingerprint

    Hot carriers
    Photonic crystals
    Energy gap
    Metals
    Semiconductor junctions
    Semiconductor materials
    Full width at half maximum
    Energy conversion
    Photons
    Costs

    Keywords

    • hot electrons
    • photonic crystal
    • photovoltaic cells
    • sub-bandgap absorption
    • surface plasmon

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

    Cite this

    Chou, J. B., Fenning, D. P., Wang, Y., Polanco, M. A. M., Hwang, J., El-Faer, A., ... Kim, S. G. (2015). Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015 [7356229] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2015.7356229

    Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. / Chou, Jeffrey B.; Fenning, David P.; Wang, Yu; Polanco, Miguel Angel Mendez; Hwang, Jonathan; El-Faer, Asmaa; Sammoura, Firas; Viegas, Jaime; Rasras, Mahmoud; Kolpak, Alexie M.; Shao-Horn, Yang; Kim, Sang Gook.

    2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7356229.

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

    Chou, JB, Fenning, DP, Wang, Y, Polanco, MAM, Hwang, J, El-Faer, A, Sammoura, F, Viegas, J, Rasras, M, Kolpak, AM, Shao-Horn, Y & Kim, SG 2015, Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015., 7356229, Institute of Electrical and Electronics Engineers Inc., 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States, 6/14/15. https://doi.org/10.1109/PVSC.2015.7356229
    Chou JB, Fenning DP, Wang Y, Polanco MAM, Hwang J, El-Faer A et al. Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7356229 https://doi.org/10.1109/PVSC.2015.7356229
    Chou, Jeffrey B. ; Fenning, David P. ; Wang, Yu ; Polanco, Miguel Angel Mendez ; Hwang, Jonathan ; El-Faer, Asmaa ; Sammoura, Firas ; Viegas, Jaime ; Rasras, Mahmoud ; Kolpak, Alexie M. ; Shao-Horn, Yang ; Kim, Sang Gook. / Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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    abstract = "Photoelectric hot carrier generation in metal-semiconductor junctions can enable optical-to-electrical energy conversion at photon energies below the bandgap of the semiconductor. Here, we present the simulated and experimental results of our wafer-scale Au/TiO2 metallic-semiconductor photonic crystal (MSPhC). We demonstrate a broadband sub-bandgap photoresponse with a FWHM of 235 nm centered at 590 nm due to surface plasmon absorption, and we also show a photoresponse enhancement factor of 4.5 at 639 nm compared to a flat chip. Photoresponse is also shown to increase with decreasing metal thickness down to 13 nm. Applications of our results could lead to low-cost and robust photoelectrochemical and thermo-photovoltaic devices.",
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    AU - Fenning, David P.

    AU - Wang, Yu

    AU - Polanco, Miguel Angel Mendez

    AU - Hwang, Jonathan

    AU - El-Faer, Asmaa

    AU - Sammoura, Firas

    AU - Viegas, Jaime

    AU - Rasras, Mahmoud

    AU - Kolpak, Alexie M.

    AU - Shao-Horn, Yang

    AU - Kim, Sang Gook

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    AB - Photoelectric hot carrier generation in metal-semiconductor junctions can enable optical-to-electrical energy conversion at photon energies below the bandgap of the semiconductor. Here, we present the simulated and experimental results of our wafer-scale Au/TiO2 metallic-semiconductor photonic crystal (MSPhC). We demonstrate a broadband sub-bandgap photoresponse with a FWHM of 235 nm centered at 590 nm due to surface plasmon absorption, and we also show a photoresponse enhancement factor of 4.5 at 639 nm compared to a flat chip. Photoresponse is also shown to increase with decreasing metal thickness down to 13 nm. Applications of our results could lead to low-cost and robust photoelectrochemical and thermo-photovoltaic devices.

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    KW - photovoltaic cells

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