Magnesium fluoride based electron-selective contact

Yimao Wan, Chris Samundsett, James Bullock, Di Yan, Thomas Allen, Peiting Zheng, Xinyu Zhang, Jie Cui, Josephine McKeon, Andres Cuevas

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

    2 Citations (Scopus)

    Abstract

    This work demonstrates a simple process for fabricating an electron-selective contact with a contact resistivity of 76 mΩ·cm2 and a contact recombination current density of 10 fA/cm2 on n-type crystalline silicon. The contact is facilitated via an amorphous silicon (∼ 6.5 nm) / magnesium fluoride (∼ 1 nm) / aluminium stack. The application of this novel electron-selective contact enables fabrication of a 20.1%-efficient n-type front-junction silicon solar cell. This contact is made to the full area of the rear surface, omitting the need for (i) high-temperature phosphorus diffusion, and (ii) patterning of the rear dielectrics by photolithography or laser processing.

    Original languageEnglish
    Title of host publication2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages2540-2542
    Number of pages3
    ISBN (Electronic)9781509027248
    DOIs
    Publication statusPublished - 18 Nov 2016
    Event43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States
    Duration: 5 Jun 201610 Jun 2016

    Publication series

    NameConference Record of the IEEE Photovoltaic Specialists Conference
    Volume2016-November
    ISSN (Print)0160-8371

    Conference

    Conference43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
    Country/TerritoryUnited States
    CityPortland
    Period5/06/1610/06/16

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