[
    {
        "id": "authors:0xrt9-ge631",
        "collection": "authors",
        "collection_id": "0xrt9-ge631",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20211109-231356543",
        "type": "book_section",
        "title": "Fabrication techniques for high-performance Si heterojunction (SHJ) microcells",
        "book_title": "2021 IEEE 48th Photovoltaic Specialists Conference (PVSC)",
        "author": [
            {
                "family_name": "Phelan",
                "given_name": "Megan E.",
                "orcid": "0000-0002-4968-7128",
                "clpid": "Phelan-Megan-E"
            },
            {
                "family_name": "Potter",
                "given_name": "Maggie M.",
                "orcid": "0000-0002-6262-1078",
                "clpid": "Potter-Maggie-M"
            },
            {
                "family_name": "Balaji",
                "given_name": "Pradeep",
                "clpid": "Balaji-Pradeep"
            },
            {
                "family_name": "Jahelka",
                "given_name": "Phil R.",
                "orcid": "0000-0002-1460-7933",
                "clpid": "Jahelka-Phillip-R"
            },
            {
                "family_name": "Bauser",
                "given_name": "Haley C.",
                "orcid": "0000-0002-9677-3301",
                "clpid": "Bauser-Haley-C"
            },
            {
                "family_name": "Glaudell",
                "given_name": "Rebecca",
                "clpid": "Glaudell-Rebecca-D"
            },
            {
                "family_name": "Needell",
                "given_name": "David R.",
                "orcid": "0000-0001-8343-5883",
                "clpid": "Needell-David-R"
            },
            {
                "family_name": "Enright",
                "given_name": "Michael",
                "orcid": "0000-0003-1157-1741",
                "clpid": "Enright-Michael-J"
            },
            {
                "family_name": "Augusto",
                "given_name": "Andr\u00e9",
                "orcid": "0000-0002-2005-0676",
                "clpid": "Augusto-Andr\u00e9"
            },
            {
                "family_name": "Nuzzo",
                "given_name": "Ralph",
                "orcid": "0000-0003-2310-2045",
                "clpid": "Nuzzo-Ralph-G"
            },
            {
                "family_name": "Atwater",
                "given_name": "Harry A.",
                "orcid": "0000-0001-9435-0201",
                "clpid": "Atwater-H-A"
            }
        ],
        "abstract": "Silicon heterojunction (SHJ) microcells offer a promising photovoltaic (PV) device for a wide range of micro-electronic applications due to their high performance potential. We examine two separate techniques for dicing SHJ microcells from bulk wafers: deep reactive ion etching (DRIE) and micro-laser cutting. We present the challenges and optimizations for each technique, as well as microcell performance for a 400\u00b5m x 400\u00b5m x 80\u00b5m microcell. Given the thickness of silicon wafers and the low face-to-edge area ratio for SHJ microcells of these dimensions, we consider varied illumination conditions for this structure. SHJ microcells are able to absorb photons along all surfaces; as such, we study microcell performance at each edge interface. We examine both modeled and experimental data of microcells across various lighting conditions and present high-performances for both sets of measurements.",
        "doi": "10.1109/pvsc43889.2021.9518579",
        "isbn": "978-1-6654-1922-2",
        "publisher": "IEEE",
        "place_of_publication": "Piscataway, NJ",
        "publication_date": "2021-06",
        "pages": "330-334"
    },
    {
        "id": "authors:m394q-75750",
        "collection": "authors",
        "collection_id": "m394q-75750",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20210702-194228884",
        "type": "book_section",
        "title": "Non-Epitxaial GaAs/Organic Heterojunction Solar Cells With 830mV Voc",
        "book_title": "2020 47th IEEE Photovoltaic Specialists Conference (PVSC)",
        "author": [
            {
                "family_name": "Jahelka",
                "given_name": "Phillip",
                "orcid": "0000-0002-1460-7933",
                "clpid": "Jahelka-Phillip-R"
            },
            {
                "family_name": "Glaudell",
                "given_name": "Rebecca",
                "clpid": "Glaudell-Rebecca-D"
            },
            {
                "family_name": "Atwater",
                "given_name": "Harry",
                "orcid": "0000-0001-9435-0201",
                "clpid": "Atwater-H-A"
            }
        ],
        "abstract": "We present a GaAs heterojunction solar cell that achieves 830mV Voc without any epitaxial processing or external doping on a bulk wafer and has an area of 10mm^2. The device consists of a bulk, n-type GaAs wafer with sulfur passivation, 10 nm of spun coat TCTA, an organic p-type semiconductor, 5 nm of of evaporated WO3, and a spun-coat film of highly-conductive PEDOT:PSS for lateral current transport. This achieved voltage paves the way for thin-film devices that can achieve 20% efficiency with only low-capital intensity processing. Additional results gleaned in achieving this voltage include: a robust, reliable, residue-free GaAs passivation process, discovering processing conditions compatible with the passivation for forming heterojunctions, and learning about the importance of lateral conduction in non-traditional heterostructure devices.",
        "doi": "10.1109/PVSC45281.2020.9300460",
        "isbn": "9781728161150",
        "publisher": "IEEE",
        "place_of_publication": "Piscataway, NJ",
        "publication_date": "2020-06-14",
        "pages": "649-651"
    }
]