METHOD OF PATTERNING A THIN-FILM PHOTOVOLTAIC LAYER STACK

    公开(公告)号:US20240322057A1

    公开(公告)日:2024-09-26

    申请号:US18680927

    申请日:2024-05-31

    申请人: First Solar, Inc.

    摘要: A method of patterning a thin-film photovoltaic layer stack includes the steps of providing a continuous layer stack comprising a planar substrate, a first electrode layer on the substrate and a photovoltaic layer on the first electrode layer, immersing the layer stack into an electrically conductive solution, applying a bias voltage between the electrolyte solution and the first electrode layer and converting a first material or a first material composition provided in at least a first portion of the layer stack into a first reaction product by an electrochemical reaction, wherein the first reaction product has an electrical conductivity that is lower than an electrical conductivity of the first material or first material composition, or removing a first material or a first material composition provided in at least a first portion of the layer stack by an electrochemical reaction.

    PHOTOVOLTAIC MODULE WITH PATTERN AND PREPARATION METHOD THEREOF

    公开(公告)号:US20240170593A1

    公开(公告)日:2024-05-23

    申请号:US17786500

    申请日:2022-03-24

    摘要: The present disclosure relates to a photovoltaic module with pattern and a preparation method thereof. The photovoltaic module with pattern includes a photovoltaic cell layer and a transparent encapsulation structure encapsulating the photovoltaic cell layer, patterned gap spaces are provided inside the transparent encapsulation structure for forming a low refractive index region, and refractive index difference between the patterned gap spaces and a physical medium inside the photovoltaic module forms a pattern on a surface of the photovoltaic module. The preparation method thereof is: firstly, preparing the photovoltaic cell layer and various structural layers of an encapsulation structure, and then typesetting and laminating the same into a photovoltaic module.

    Semitransparent thin-film solar module

    公开(公告)号:US11515440B2

    公开(公告)日:2022-11-29

    申请号:US16649979

    申请日:2018-09-26

    摘要: A thin-film solar module with a substrate and a layer structure applied thereon comprising a rear electrode layer, a front electrode layer, and an absorber layer arranged between the back electrode layer and the front electrode layer. Serially connected solar cells are formed in the layer region by patterning zones, having a rear electrode layer section. The layer region has at least one linear decoating region. The decoating region has an alternating sequence of optically transparent zones and electrode zones. The optically transparent zones are rear-electrode-layer-free and the electrode zones are absorber-layer-free and have a rear electrode layer section. The rear-electrode-layer-sections of at least one pair made up of one solar cell of one solar cell string and one solar cell of the other solar cell string are areally connected to one another by the rear-electrode-layer-section of at least one electrode zone.

    SEMI-TRANSPARENT MULTI-CELL PHOTOVOLTAIC DEVICE

    公开(公告)号:US20220109078A1

    公开(公告)日:2022-04-07

    申请号:US17644514

    申请日:2021-12-15

    IPC分类号: H01L31/0463 H01L31/0468

    摘要: A semi-transparent photovoltaic module comprises a basic 2D pattern representing an arrangement of an electrically conductive zone and electrically non-conductive zones such that any point in the electrically conductive zone is electrically connected to any other point of the zone and the electrically conductive zone is a regular or pseudo-regular structure formed by an elementary geometrical figure. The module additionally comprises one or more active isolation lines and a plurality of non-functional isolation lines that are mutually parallel.

    SOLAR CELL VIA THIN FILM SOLDER BOND HAVING A STRAIN BALANCING LAYER

    公开(公告)号:US20210351310A1

    公开(公告)日:2021-11-11

    申请号:US17314229

    申请日:2021-05-07

    申请人: AmberWave, Inc.

    IPC分类号: H01L31/0463 H01L31/18

    摘要: The present disclosure describes a solar cell that in one embodiment includes a substrate having a first thermal expansion coefficient; and a strain balancing layer on a surface of the substrate having a second thermal expansion greater than the first thermal expansion coefficient. The solar cell further includes a solder bonding layer on a surface of the strain balancing layer to position the strain balancing layer between the solder bonding layer and the supporting substrate. The solar cell further includes a semiconductor junction having a bonded surface on the solder bonding layer that is opposite the surface of the solder bonding layer engaged to the strain balancing layer.

    Method for manufacturing perovskite solar cell module and perovskite solar cell module

    公开(公告)号:US11114252B2

    公开(公告)日:2021-09-07

    申请号:US16788632

    申请日:2020-02-12

    摘要: Disclosures of the present invention mainly describe a method for manufacturing perovskite solar cell module. At first, a laser scribing is adopted for forming multi transparent conductive films (TCFs) on a transparent substrate. Subsequently, by using a first mask, multi HTLs, active layers, and ETLs are sequentially formed on the TCFs. Consequently, by the use of a second make, each of the ETLs is formed with an electrically connecting layer thereon, such that a perovskite solar cell module comprising a plurality of solar cell units is hence completed on the transparent substrate. It is worth explaining that, during the whole manufacturing process, each of the solar cell units is prevented from receiving bad influences that are provided by laser scribing or manufacture environment, such that each of the solar cell units is able to exhibit outstanding photoelectric conversion efficiency.