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公开(公告)号：EP4266383A1
公开(公告)日：2023-10-25
申请号：EP21905598.5
申请日：2021-12-08
发明人： WU, Zhao , XU, Chen , LI, Zifeng , XIE, Junjie
IPC分类号： H01L31/0687
摘要： Provided is a laminated photovoltaic device, which relates to the technical field of solar photovoltaics. The laminated photovoltaic device comprises an upper-layer cell unit, a lower-layer cell unit, and a first conductive light trapping structure therebetween, which are arranged in a laminated manner; and further comprises at least one of a second light trapping structure located on a side of the lower-layer cell unit facing away from the light and a third light trapping structure located on a light-facing side of the upper-layer cell unit, wherein localized surface plasmons generated by the first light trapping structure, the second light trapping structure and the third light trapping structure respectively correspond to different light wave response peak values; and the first light trapping structure, the second light trapping structure and the third light trapping structure form discrete microstructures on a first cross section, with the average sizes of the projections of the discrete microstructures on a light-facing light surface of the laminated photovoltaic device being respectively d1, d2 and d3, and the average distances between the microstructures being respectively w1, w2 and w3, satisfying formula I and formula II. In the laminated photovoltaic device, the light trapping effect is improved, and the thickness of an absorption layer is reduced.
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公开(公告)号：EP4369885A1
公开(公告)日：2024-05-15
申请号：EP22851652.2
申请日：2022-05-10
发明人： XIE, Junjie , WU, Zhao , XU, Chen , LI, Zifeng , LIU, Tong , SUN, Zhuxing
IPC分类号： H10K10/00
CPC分类号： Y02E10/549 , H10K30/80 , H10K30/50 , H10K30/82
摘要： The present application relates to the technical field of solar photovoltaics. Provided are a perovskite cell and a photovoltaic module. The perovskite cell comprises 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. In the present application, the transmittance of an optical adjustment layer for visible light is greater than or equal to a preset transmittance, such that the efficiency of the perovskite cell and the lighting requirement of a building can be ensured; in addition, when the reflectivity of the optical adjustment layer for infrared light is greater than or equal to a preset reflectivity, the requirements of the building for heat preservation, refrigeration, etc., can be ensured, thereby reducing the energy loss caused by the requirements of the building for heat preservation and refrigeration.
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公开(公告)号：EP4254530A1
公开(公告)日：2023-10-04
申请号：EP21896598.6
申请日：2021-10-13
发明人： XIE, Junjie , XU, Chen , LI, Zifeng , WU, Zhao , JIN, Jinling
IPC分类号： H01L51/48
摘要： The present application discloses a perovskite layer, a method for preparing a perovskite layer, a perovskite-layer solar cell and a perovskite-layer-solar-cell assembly, which relates to the technical field of photovoltaics, and is used to prepare a perovskite layer that can completely cover the substrate and has few defects. The method for preparing a perovskite layer includes: providing a substrate; forming perovskite seed crystals on the substrate; soaking the perovskite seed crystals into a perovskite solution; by the effect of the perovskite seed crystals, the perovskite seed crystals growing into a perovskite thin film; and performing annealing treatment to the perovskite thin film, to form the perovskite layer. The perovskite layer and the preparing method thereof according to the present application are used for the fabrication of a solar cell.
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4.发明公开
公开(公告)号：EP4435873A1
公开(公告)日：2024-09-25
申请号：EP22894190.2
申请日：2022-05-23
发明人： XIE, Junjie , XU, Chen , LI, Zifeng , DIAO, Yifan , WU, Zhao , SUN, Zhuxing
IPC分类号： H01L31/068 , H01L31/18 , H10K30/00 , H10K85/00
CPC分类号： Y02E10/549 , B82Y15/00 , B82Y30/00 , B82Y40/00 , H01L31/068 , H01L31/0687 , H01L31/18 , H10K30/10 , H10K39/15 , H10K71/00
摘要： This application provides a perovskite-crystalline silicon tandem solar cell. The perovskite-crystalline silicon tandem solar cell includes a crystalline silicon solar cell, a serial connection structure layer, a first carrier transport layer, a perovskite light absorption layer, a second carrier transport layer, and an upper transparent electrode layer stacked in sequence, where the first carrier transport layer includes a carrier transport layer base layer and nano-resistance-increasing structures discretely distributed on the carrier transport layer base layer and integrally formed with the carrier transport layer base layer, and the nano-resistance-increasing structures extend from the carrier transport layer base layer into the perovskite light absorption layer. The perovskite-crystalline silicon tandem solar cell in this application can enhance a carrier collection and conduction capability of a carrier transport material, and can also greatly improve the energy conversion efficiency of the perovskite-crystalline silicon tandem solar cell. In addition, a light trapping effect of the perovskite-crystalline silicon tandem solar cell can be enhanced, and the conversion efficiency of the solar cell can be further improved; and perovskite composition may be adjusted flexibly, so that the energy conversion efficiency can be improved greatly.
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5.发明公开
公开(公告)号：EP4425530A1
公开(公告)日：2024-09-04
申请号：EP22885111.9
申请日：2022-06-07
发明人： DIAO, Yifan , XIE, Junjie , WU, Zhao , LI, Zifeng , SUN, Zhuxing , LIU, Tong , XU, Chen
IPC分类号： H01L
CPC分类号： Y02E10/549 , H10K85/10 , H10K30/10 , H10K30/50 , H10K71/12
摘要： This application discloses a perovskite solar cell having a hole transport layer with comb fiber structures and a preparation method thereof. The perovskite solar cell comprises a transparent electrode layer and a hole transport layer with comb fiber structures formed on the transparent electrode layer. The hole transport layer with comb fiber structures is made of a polythiophene-based polymer hole transport material. The preparation method comprises the following steps: depositing an oxidant on a transparent electrode layer; contacting a solution containing a strongly polar acid and a thiophene-based hole transport material monomer with the oxidant and reacting to obtain a hole transport layer with comb fiber structures; and synthesizing a perovskite absorption layer on the hole transport layer with comb fiber structures, and then providing an electron transport layer and an electrode layer on the perovskite absorption layer in sequence. The solar cell has a hole transport layer with uniform and high-density comb fiber structures, resulting in an increased contact area between the hole transport layer and the absorption layer. The hole transport layer is of comb fiber structures, which increase the contact area between the hole transport layer and the absorption layer.
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公开(公告)号：EP4258365A1
公开(公告)日：2023-10-11
申请号：EP21928856.0
申请日：2021-11-23
发明人： XIE, Junjie , XU, Chen , LI, Zifeng , WU, Zhao , JIN, Jinling , LIU, Tong
IPC分类号： H01L31/0216
摘要： The present disclosure relates to the field of photovoltaic technologies. Disclosed are a solar cell and a photovoltaic module. The difficulty in manufacturing an energy selective contact layer is reduced while energy selective transmission of carriers is achieved. The solar cell comprises: 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 comprising 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：EP4379818A1
公开(公告)日：2024-06-05
申请号：EP22862754.3
申请日：2022-05-26
发明人： WU, Zhao , XU, Chen , LI, Zifeng , XIE, Junjie , LIU, Tong
IPC分类号： H01L31/0725 , H01L31/0216 , H01L31/0747 , H10K50/00
CPC分类号： Y02E10/52 , H01L31/0725 , H01L31/0747 , H10K50/11 , H01L31/0216
摘要： The present application discloses a color laminated photovoltaic device, comprising a lower-layer battery, an optical reflective layer, a series layer and an upper-layer battery. The series layer is communicated with the lower-layer battery and the upper-layer battery; the optical reflective layer is located between the lower-layer battery and the upper-layer battery, and controls, by adjusting the upper-layer battery and/or the optical reflective layer, a color presented by the color laminated photovoltaic device. According to the color laminated photovoltaic device of the present application, the optical reflective layer is inserted between the upper-layer battery and the lower-layer battery, so that the whole laminated photovoltaic device has a reflection peak at a waveband of 450-800 nm, thereby solving the problem that a color reflection peak at a visible light waveband and the spectral energy at other wavebands cannot be absorbed and utilized by the upper-layer battery, and also ensuring that the upper-layer battery of the laminated photovoltaic device has relatively high efficiency at the visible light waveband, such that the whole laminated photovoltaic device has relatively high photoelectric conversion efficiency while presenting a color.
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公开(公告)号：EP4376569A1
公开(公告)日：2024-05-29
申请号：EP22859968.4
申请日：2022-05-26
发明人： WU, Zhao , XU, Chen , LI, Zifeng , XIE, Junjie , LIU, Tong
IPC分类号： H10K30/80 , H01L31/0216
CPC分类号： Y02E10/549 , H10K39/15 , H01L31/068 , H10K30/80 , H10K30/50 , H01L31/0216 , H10K30/40
摘要： A tandem photovoltaic device is provided by the present disclosure and relates to the technical field of solar photovoltaic. The 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 ≥ -0.3eV and ≤ 0.3 eV. Since the difference of the work functions between the perovskite absorbing layer and the crystalline silicon absorbing layer of the tandem photovoltaic device at the contact interface is ≥ -0.3 eV, and ≤ 0.3 eV, the work functions of the two absorbing layers are matched, the voltage loss caused by the work function mismatch is avoided, and the intermediate series structure does not need energy band buffering and is a single layer, the carrier parasitic absorption caused by the introduction of multilayer electrical function layers may be reduced, and the transmission loss caused by interface resistance and defects reduce is reduced.
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公开(公告)号：EP4369419A1
公开(公告)日：2024-05-15
申请号：EP22854987.9
申请日：2022-05-10
发明人： XIE, Junjie , XU, Chen , LI, Zifeng , WU, Zhao , LIU, Tong
IPC分类号： H01L31/0443
CPC分类号： H01L31/18 , H01L31/0443 , H01L31/0336 , Y02E10/549
摘要： 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：EP4365962A1
公开(公告)日：2024-05-08
申请号：EP22862755.0
申请日：2022-05-26
发明人： WU, Zhao , XU, Chen , XIE, Junjie , LI, Zifeng , LIU, Tong
IPC分类号： H01L31/068 , H01L31/0747 , H01L31/075
CPC分类号： Y02E10/549 , H10K39/15 , H01L31/0747 , H01L31/068 , H01L31/075 , H10K30/87 , H10K30/50 , H10K30/40
摘要： The present application provides a tandem solar cell and a photovoltaic assembly, which relates to the technical field of solar photovoltaics. 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. In the present application, the top-layer perovskite sub-cell cannot completely absorb the target light rays whose wavelengths are within the short-wave wave band in the range of 600-800 nanometers among the sunlight rays. 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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