FRONT CONTACT SOLAR CELL WITH FORMED EMITTER

    公开(公告)号:US20250006851A1

    公开(公告)日:2025-01-02

    申请号:US18802814

    申请日:2024-08-13

    Abstract: A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

    FRONT SURFACE ANTI-REFLECTION COATING FOR SOLAR CELLS

    公开(公告)号:US20240395953A1

    公开(公告)日:2024-11-28

    申请号:US18204918

    申请日:2023-06-01

    Abstract: A solar cell is disclosed. The solar cell includes a substrate and an anti-reflection coating on the substrate. The anti-reflection coating includes a coating layer on the substrate that includes SiNx, a high refractive index coating layer that includes TiO2 on the coating layer that includes SiNx, and a coating layer on the coating layer that includes TiO2.

    Wire-based metallization for solar cells

    公开(公告)号:US12132126B2

    公开(公告)日:2024-10-29

    申请号:US17836822

    申请日:2022-06-09

    CPC classification number: H01L31/022441 H01L31/0682 Y02E10/547

    Abstract: Approaches for fabricating wire-based metallization for solar cells, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a back surface and an opposing light-receiving surface. A plurality of alternating N-type and P-type semiconductor regions is disposed in or above the back surface of the substrate. A conductive contact structure is disposed on the plurality of alternating N-type and P-type semiconductor regions. The conductive contact structure includes a plurality of metal wires. Each metal wire of the plurality of metal wires is parallel along a first direction to form a one-dimensional layout of a metallization layer for the solar cell.

    Diode-included connector, photovoltaic laminate and photovoltaic assembly using same

    公开(公告)号:US12057806B2

    公开(公告)日:2024-08-06

    申请号:US16535751

    申请日:2019-08-08

    Abstract: One embodiment relates to a connector that includes a diode. The diode has an anode and a cathode. The connector further includes a first electrical connection which connects to the anode, a second electrical connection which also connects to the anode, and a third electrical connection which connects to the cathode. Another embodiment relates to a photovoltaic laminate which includes a string of photovoltaic cells and three electrical conductors extending out of two discrete penetrations of the laminate. A first electrical conductor is connected to a first end of the string, a second electrical conductor is connected to a second end of the string, and a third electrical conductor is also connected to the second end of the string. The first and third electrical conductors extend out of the first discrete penetration, while the second electrical conductor extends out of the second discrete penetration. Other features and embodiments are also disclosed.

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