Nanotube Film Enhanced 3-D Photoanode for Dye-Sensitive Photovoltaic Cell

    公开(公告)号:US20240355555A1

    公开(公告)日:2024-10-24

    申请号:US18136316

    申请日:2023-04-18

    申请人: Fareed Dawan

    发明人: Fareed Dawan

    IPC分类号: H01G9/20 H01G9/00

    摘要: The present invention teaches increasing the efficiency of a dye-sensitive solar cell by increasing the surface area of the DSSC photoanode. A thin film titanium oxide is deposited in trapezoidal shaped wells etched in the DSSC substrate. The thin-film titanium oxide is anodized to produce titanium oxide nanotubes on the inner surface of the trapezoidal shaped wells to further increase the surface area and incidence of light being temporarily trapped within the wells. A sensitized dye overlays the titanium oxide nanotubes to increase quantity of light absorbed by the titanium oxide nanotubes. A photoactive layer such as Cs2O may be deposited to enhance electron current contribution. A compatible transparent metal contact layer is deposited. This layer may be followed by a high-refractive index droplet over the well to act as a convex lens waveguide for incoming light. Electrical connections are then made to the frontside and backside metal contacts.

    Solar cell antireflection and porous silicon layers

    公开(公告)号:US12106909B2

    公开(公告)日:2024-10-01

    申请号:US18616850

    申请日:2024-03-26

    发明人: Firoz Khan

    摘要: A three-tandem (3T) perovskite/silicon (PVT)-based tandem solar cell (TSC) includes an antireflection coating (ARC), a first transparent conductive oxide layer (TCO), a hole transport layer (HTL), a perovskite (PVT) layer, a second transparent conductive oxide layer (TCO), an electron transport layer (ETL), a plurality of buried contacts, a p-type Si layer, a p-type wafer-based homo-junction silicon solar cell, a n+ silicon layer, a back contact layer. The solar cell further includes a top sub-cell, a bottom sub-cell and a middle contact-based tandem. The top sub-cell includes the PVT layer. The bottom sub-cell includes the silicon solar cell. The middle contact-based tandem includes the second TCO layer to be used as the middle contact-based tandem, as well as a recombination layer for current collection. Further, a conduction and a valence band edge are employed at a front surface of the ETL.

    PEROVSKITE SOLAR CELL AND MANUFACTURING METHOD THEREFOR

    公开(公告)号:US20240079186A1

    公开(公告)日:2024-03-07

    申请号:US18271411

    申请日:2022-04-11

    IPC分类号: H01G9/20 H01G9/00

    CPC分类号: H01G9/2009 H01G9/0036

    摘要: Provided is a perovskite solar cell. The perovskite solar cell includes a bottom electrode; a hole transport layer formed on the bottom electrode; a first polymer electrolyte layer formed on the hole transport layer and including a halide; a perovskite photoactive layer formed on the first polymer electrolyte layer; an electron transport layer formed on the perovskite photoactive layer; a second polymer electrolyte layer formed on the electron transport layer and including an amine group; and a top electrode formed on the second polymer electrolyte layer.