Silicon based photon-enhanced thermionic emission devices

Aapo Varpula, Kasper Reck, Mika Prunnila, Ole Hansen

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

    Abstract

    Silicon has been widely used in semiconductor industry for decades. This gives rise to the availability of cost-effective materials and a wide range of processing tools and knowhow. The band gap of silicon is also fairly optimal for harvesting solar energy. In fact, the most of the photovoltaic devices manufactured nowadays are based on silicon. Therefore, silicon would also be a good candidate for photon-enhanced thermionic emission (PETE) solar cells. We investigate the use of silicon as the cathode material in PETE cells. The investigation is based on our previously published model and experimental results obtained from surface-science measurements in an ultra-high vacuum setup. The model takes into account both front and back side surface recombination, the Shockley-Read-Hall (SRH), Auger, and radiative recombination in the bulk as well as the temperature dependence of the band gap, donor ionization, absorption coefficient, and charge carrier mobilities. Our results indicate the PETE effect in silicon, thus further supporting use of silicon in PETE based solar power.
    Original languageEnglish
    Title of host publicationWorkshop Abstracts
    Publication statusPublished - 2014
    EventInternational Workshop on Photon-Enhanced Thermionic Emission, PETE-2014 - Tel Aviv, Israel
    Duration: 23 Jun 201424 Jun 2014

    Conference

    ConferenceInternational Workshop on Photon-Enhanced Thermionic Emission, PETE-2014
    Abbreviated titlePETE-2014
    CountryIsrael
    CityTel Aviv
    Period23/06/1424/06/14

    Fingerprint

    thermionic emission
    photons
    silicon
    solar energy
    radiative recombination
    carrier mobility
    ultrahigh vacuum
    availability
    charge carriers
    absorptivity
    solar cells
    cathodes
    industries
    costs
    ionization
    temperature dependence
    cells

    Keywords

    • solar energy
    • photon-enhanced thermionic emission
    • silicon

    Cite this

    Varpula, A., Reck, K., Prunnila, M., & Hansen, O. (2014). Silicon based photon-enhanced thermionic emission devices. In Workshop Abstracts
    Varpula, Aapo ; Reck, Kasper ; Prunnila, Mika ; Hansen, Ole. / Silicon based photon-enhanced thermionic emission devices. Workshop Abstracts. 2014.
    @inbook{c0c57d39a33f403ca15cefacda94a262,
    title = "Silicon based photon-enhanced thermionic emission devices",
    abstract = "Silicon has been widely used in semiconductor industry for decades. This gives rise to the availability of cost-effective materials and a wide range of processing tools and knowhow. The band gap of silicon is also fairly optimal for harvesting solar energy. In fact, the most of the photovoltaic devices manufactured nowadays are based on silicon. Therefore, silicon would also be a good candidate for photon-enhanced thermionic emission (PETE) solar cells. We investigate the use of silicon as the cathode material in PETE cells. The investigation is based on our previously published model and experimental results obtained from surface-science measurements in an ultra-high vacuum setup. The model takes into account both front and back side surface recombination, the Shockley-Read-Hall (SRH), Auger, and radiative recombination in the bulk as well as the temperature dependence of the band gap, donor ionization, absorption coefficient, and charge carrier mobilities. Our results indicate the PETE effect in silicon, thus further supporting use of silicon in PETE based solar power.",
    keywords = "solar energy, photon-enhanced thermionic emission, silicon",
    author = "Aapo Varpula and Kasper Reck and Mika Prunnila and Ole Hansen",
    note = "Project code: 74074",
    year = "2014",
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    booktitle = "Workshop Abstracts",

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    Varpula, A, Reck, K, Prunnila, M & Hansen, O 2014, Silicon based photon-enhanced thermionic emission devices. in Workshop Abstracts. International Workshop on Photon-Enhanced Thermionic Emission, PETE-2014, Tel Aviv, Israel, 23/06/14.

    Silicon based photon-enhanced thermionic emission devices. / Varpula, Aapo; Reck, Kasper; Prunnila, Mika; Hansen, Ole.

    Workshop Abstracts. 2014.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

    TY - CHAP

    T1 - Silicon based photon-enhanced thermionic emission devices

    AU - Varpula, Aapo

    AU - Reck, Kasper

    AU - Prunnila, Mika

    AU - Hansen, Ole

    N1 - Project code: 74074

    PY - 2014

    Y1 - 2014

    N2 - Silicon has been widely used in semiconductor industry for decades. This gives rise to the availability of cost-effective materials and a wide range of processing tools and knowhow. The band gap of silicon is also fairly optimal for harvesting solar energy. In fact, the most of the photovoltaic devices manufactured nowadays are based on silicon. Therefore, silicon would also be a good candidate for photon-enhanced thermionic emission (PETE) solar cells. We investigate the use of silicon as the cathode material in PETE cells. The investigation is based on our previously published model and experimental results obtained from surface-science measurements in an ultra-high vacuum setup. The model takes into account both front and back side surface recombination, the Shockley-Read-Hall (SRH), Auger, and radiative recombination in the bulk as well as the temperature dependence of the band gap, donor ionization, absorption coefficient, and charge carrier mobilities. Our results indicate the PETE effect in silicon, thus further supporting use of silicon in PETE based solar power.

    AB - Silicon has been widely used in semiconductor industry for decades. This gives rise to the availability of cost-effective materials and a wide range of processing tools and knowhow. The band gap of silicon is also fairly optimal for harvesting solar energy. In fact, the most of the photovoltaic devices manufactured nowadays are based on silicon. Therefore, silicon would also be a good candidate for photon-enhanced thermionic emission (PETE) solar cells. We investigate the use of silicon as the cathode material in PETE cells. The investigation is based on our previously published model and experimental results obtained from surface-science measurements in an ultra-high vacuum setup. The model takes into account both front and back side surface recombination, the Shockley-Read-Hall (SRH), Auger, and radiative recombination in the bulk as well as the temperature dependence of the band gap, donor ionization, absorption coefficient, and charge carrier mobilities. Our results indicate the PETE effect in silicon, thus further supporting use of silicon in PETE based solar power.

    KW - solar energy

    KW - photon-enhanced thermionic emission

    KW - silicon

    M3 - Conference abstract in proceedings

    BT - Workshop Abstracts

    ER -