Improved Device Models of CZTSe: Nanolayer Ge solar cells with Quantum Efficiency

Sanghyun Lee, Kent J. Price, Edgardo Saucedo, Sergio Giraldo

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    2 Scopus citations

    Abstract

    We fabricated and characterized CZTSe: Nanolayer Ge (<10 nm) thin film solar cells to quantitatively demonstrate an exact device model of quantum efficiency for Ge doped CZTSe devices. The linear electric field model is developed used to fit the unique quantum efficiency as compared to empirical data at forward bias condition. This model is characterized with a consistent set of parameters from a series of measurements and literature. Using the analytical modeling method, the carrier collection profile in the absorber is calculated and closely fitted by developed mathematical expressions to identify the carrier dynamics during the quantum efficiency measurement.

    Original languageEnglish
    Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
    Pages3000-3002
    Number of pages3
    ISBN (Electronic)9781538685297
    DOIs
    StatePublished - Nov 26 2018
    Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
    Duration: Jun 10 2018Jun 15 2018

    Publication series

    Name2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

    Conference

    Conference7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
    Country/TerritoryUnited States
    CityWaikoloa Village
    Period6/10/186/15/18

    Bibliographical note

    Funding Information:
    Authors acknowledges the generous support by the Louisville Gas & Energy and Kentucky Utility.

    Publisher Copyright:
    © 2018 IEEE.

    Keywords

    • CZTSe
    • kesterite
    • modeling
    • quantum efficiency

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Renewable Energy, Sustainability and the Environment
    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

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