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公开(公告)号：US20240313139A1
公开(公告)日：2024-09-19
申请号：US18579878
申请日：2022-05-10
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Chen XU , Zifeng LI , Zhao WU , Tong LIU
IPC: H01L31/044 , H01L31/02 , H01L31/05 , H01L31/18
CPC classification number: H01L31/044 , H01L31/02008 , H01L31/0512 , H01L31/1864 , H01L31/1876
Abstract: A perovskite material bypass diode and a manufacturing method therefor, a perovskite solar cell module and a manufacturing method therefor, and a photovoltaic module are disclosed by the present application, which relate to the technical field of photovoltaics, the difficulty of manufacturing the perovskite material bypass diode is reduced. The method for manufacturing the perovskite material bypass diode includes: providing a layer of a perovskite material layer, processing the perovskite material layer to form a P-type perovskite material region and an N-type perovskite material region, so that a perovskite material bypass diode is formed. The perovskite material bypass diode and the manufacturing method therefor, the perovskite solar cell module and the manufacturing method therefor, and the photovoltaic module provided by the present application are used to manufacture the photovoltaic module.
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公开(公告)号：US20240090245A1
公开(公告)日：2024-03-14
申请号：US18272027
申请日：2021-11-23
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Chen XU , Zifeng LI , Zhao WU , Jinling JIN , Tong LIU
Abstract: The present disclosure relates to the field of photovoltaic technologies. Disclosed are a solar cell and a photovoltaic module. The solar cell includes: an absorption layer; and an energy selective contact layer located on a surface of the absorption layer, the energy selective contact layer having selectivity for electron energy or hole energy, and the material of the energy selective contact layer including a low-dimensional perovskite material. According to the solar cell and the photovoltaic module provided by the present disclosure, a photovoltaic module can be manufactured.
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公开(公告)号：US20230337444A1
公开(公告)日：2023-10-19
申请号：US18028491
申请日：2021-12-07
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Chen XU , Zifeng LI , Zhao WU
CPC classification number: H10K30/10 , H10K30/50 , H10K71/311 , H10K2101/70
Abstract: A solar cell, a preparation method for a solar cell, and a photovoltaic module, relating to the technical field of solar energy photovoltaics. The solar cell includes a crystalline silicon cell unit, and a down-conversion luminescence layer and a perovskite layer sequentially located on the light-facing surface of the crystalline silicon cell unit. The band gap of the perovskite layer becomes gradually smaller in the direction from the light-facing surface to the back surface. The band gap at the back surface of the perovskite layer is greater than or equal to the band gap of an absorption layer of the crystalline silicon cell unit. Because the band gap gradually decreases from large to small, the perovskite layer features a wide absorption spectrum, a long charge carrier free path, higher luminous efficiency, thus being able to broaden the spectral absorption range of the solar cell, and improve energy use and conversion efficiency. The complex processing of multi-layer battery superposition is avoided, the multiple film layer structure is simplified, losses in transmission of charge carriers between film layer interfaces and series structures are avoided, the conversion efficiency of the solar cell is further improved, and the processing difficulty is reduced, facilitating industrial production.
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公开(公告)号：US20240355950A1
公开(公告)日：2024-10-24
申请号：US18688055
申请日：2022-05-26
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Zhao WU , Chen XU , Zifeng LI , Junjie XIE , Tong LIU
IPC: H01L31/076 , H01L31/0216 , H10K30/15 , H10K30/40
CPC classification number: H01L31/076 , H01L31/02167 , H10K30/40 , H10K30/15
Abstract: A color tandem photovoltaic device includes a bottom cell, an optical reflective layer, a series connection layer, and a top cell. The series connection layer connects the bottom cell and the top cell; the optical reflective layer is located between the bottom cell and the top cell such that the color tandem photovoltaic device presents color.
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公开(公告)号：US20240341107A1
公开(公告)日：2024-10-10
申请号：US18294040
申请日：2022-05-26
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Zhao WU , Chen XU , Junjie XIE , Zifeng LI , Tong LIU
Abstract: A tandem solar cell and a photovoltaic assembly, The tandem solar cell includes: a top-layer perovskite sub-cell and a bottom-layer crystalline-silicon sub-cell, and an optical regulating layer provided between the top-layer perovskite sub-cell and the bottom-layer crystalline-silicon sub-cell. After the part of the target light rays that are not absorbed by the top-layer perovskite sub-cell have passed through the top-layer perovskite sub-cell, because the optical regulating layer can be used to reflect at least some of the target light rays back into the top-layer perovskite sub-cell, at least some of the target light rays can enter the top-layer perovskite sub-cell again to perform secondary absorption, which prevents that the target light rays within the short-wave wave band directly enter the bottom-layer crystalline-silicon sub-cell having a low utilization ratio of the target light rays within the short-wave wave band, thereby increasing the efficiency of the tandem solar cell.
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Patent Agency Ranking
公开(公告)号：US20240251575A1
公开(公告)日：2024-07-25
申请号：US18294872
申请日：2022-05-10
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Zhao WU , Chen XU , Zifeng LI , Tong LIU , Zhuxing SUN
Abstract: Provided are a perovskite cell and a photovoltaic module. The perovskite cell includes a perovskite light absorption layer, a first carrier transport layer, a second carrier transport layer, a first transparent electrode layer, a second transparent electrode layer, and an optical adjustment layer, wherein the optical adjustment layer is arranged between the second carrier transport layer and the second transparent electrode layer; and the transmittance of the optical adjustment layer for visible light is greater than or equal to a preset transmittance, and the reflectivity of the optical adjustment layer for infrared light is greater than or equal to a preset reflectivity.
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公开(公告)号：US20240014333A1
公开(公告)日：2024-01-11
申请号：US18036583
申请日：2021-11-18
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Zhao WU , Chen XU , Zifeng LI , Junjie XIE
IPC: H01L31/0224 , H01L31/0236 , H01L31/18
CPC classification number: H01L31/022433 , H01L31/02363 , H01L31/1868
Abstract: At least one surface of a cell body of a photovoltaic cell includes a first area and a second area; the first area is configured as a textured structure; the second area is configured as a plurality of pits having a projection size of 0.5 to 100 microns on the surface of the cell body.
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公开(公告)号：US20250017030A1
公开(公告)日：2025-01-09
申请号：US18704644
申请日：2022-06-07
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Yifan DIAO , Junjie XIE , Zhao WU , Zifeng LI , Zhuxing SUN , Tong LIU , Chen XU
Abstract: This application discloses a perovskite solar cell having a hole transport layer with comb fiber structures and a preparation method thereof. In one aspect, a perovskite solar cell includes a perovskite absorption layer, a transparent electrode layer and a hole transport layer with comb fiber structures that is on the transparent electrode layer. The hole transport layer with comb fiber structures includes a polythiophene-based polymer hole transport material.
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公开(公告)号：US20240373657A1
公开(公告)日：2024-11-07
申请号：US18686581
申请日：2022-05-26
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Zhao WU , Chen XU , Zifeng LI , Junjie XIE , Tong LIU
Abstract: A tandem photovoltaic device includes a perovskite absorbing layer, a crystalline silicon absorbing layer and a single-layer electrical function layer connected in series to the two absorbing layers; a contact interface between the perovskite absorbing layer and the single-layer electrical function layer is a first series interface; and a contact interface between the crystalline silicon absorbing layer and the single-layer electrical function layer is a second series interface; wherein a conducting type at the second series interface is different from a conducting type at the first series interface, and the difference between the work functions is ≥−0.3 eV and ≤0.3 eV.
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公开(公告)号：US20240006546A1
公开(公告)日：2024-01-04
申请号：US18037286
申请日：2021-12-08
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Zhao WU , Chen XU , Zifeng LI , Junjie XIE
IPC: H01L31/0236 , H01L31/0687
CPC classification number: H01L31/02363 , H01L31/0687
Abstract: Provided is a tandem photovoltaic device comprising: a top cell, a bottom cell, and a first light-trapping structure, in stacking, wherein a band-gap width of the top cell is larger than that of the bottom cell; and at least one of a second light-trapping structure located on a side of a shading surface of the bottom cell and a third light-trapping structure located on a side of a phototropic surface of the top cell; the three light-trapping structures are selected from metal or semiconductor material, and localized surface plasmons generated by the three light-trapping structures correspond to different peaks of light-wave response; and the three light-trapping structures form microstructures on a first cross section, average sizes d1, d2 and d3 of projections of the microstructures and average distances w1, w2 and w3 between the microstructures have relationships:
2
≤
(
w
1
w
2
)
2
·
d
2
d
1
≤
16
,
and
/
or
2
≤
(
w
3
w
1
)
2
·
d
1
d
3
≤
16.
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