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公开(公告)号：US11434324B2
公开(公告)日：2022-09-06
申请号：US16758870
申请日：2018-07-13
发明人： Linghai Xie , Lei Tang , Ying Wei , Wei Huang
IPC分类号： C08G61/02 , C07D495/20 , C07D495/22
摘要： The invention relates to an organic polyspiralgrid nanopolymer material and a preparation method thereof, and belongs to the field of nanotechnology and organic electronics. The structure of the organic polyspiralgrid nanopolymer material is composed of grids containing a spiro ring that serves as a repeat unit to form a special nano polymer, and the structure shares the spiro ring structure. A synthetic method thereof relates to a synthon containing the spiro ring, and by means of a Friedel-Crafts reaction, an organic spirogrid and a nano polymer thereof are built. By means of reasonable molecular design and the Friedel-Crafts reaction with the advantages of being mild in reaction condition, high in yield, high in selectivity, simple in posttreatment, green, free of toxicity and the like, the problems that a traditional polymer molecule is complex in synthesis step, toxic in posttreatment, large in pollution and the like are solved.
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2.发明授权公开(公告)号：US11968886B2
公开(公告)日：2024-04-23
申请号：US18469581
申请日：2023-09-19
发明人： Ligang Xu , Wenbo Jia , Dongdong Yan
摘要： A preparation method of perovskite film based on semicarbazide hydrochloride (SEM-HCl) additive and a preparation method of photovoltaic device are provided, a perovskite optimized crystallization strategy is provided, a tin-based perovskite thin film is prepared based on a solution method, and a purpose of regulating and controlling perovskite crystallization is achieved by means of a cross-linking effect of special groups in SEM-HCl and perovskite components. Defects of crystals of the prepared perovskite film are reduced, the non-radiative recombination in a transmission process of carriers is suppressed, and a photoelectric conversion efficiency and a photovoltaic device stability are remarkably improved.
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公开(公告)号：US11600788B2
公开(公告)日：2023-03-07
申请号：US17118114
申请日：2020-12-10
发明人： Wenyong Lai , Jiandong Zhang , Bin Du , Wei Huang
摘要： The present invention discloses a ternary polymer solar cell. A photoactive layer of the ternary polymer solar cell includes two non-fullerene electron acceptors with large planarity. The weight percentage composition of the photoactive layer in the ternary polymer solar cell is: 41.6-50% of polymer electron donor, 0-50% of polymer electron acceptor, and 0-50% of non-fullerene perylene diimide (PDI) electron acceptor. The non-fullerene PDI electron acceptor is added into the photoactive layer to broaden the spectral absorption of the photoactive layer, improve the phase separation of the photoactive layer and inhibit the recombination of bimolecular charges, resulting in more efficient generation and transport of charges, thereby increasing a short-circuit current density of the ternary polymer solar cell device, and finally improving the power conversion efficiency of the ternary polymer solar cell device. Moreover, a new direction is provided for the selection of the all-polymer non-fullerene acceptor.
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公开(公告)号：US20210104685A1
公开(公告)日：2021-04-08
申请号：US17118114
申请日：2020-12-10
发明人： Wenyong LAI , Jiandong ZHANG , Bin DU , Wei HUANG
IPC分类号： H01L51/00
摘要： The present invention discloses a ternary polymer solar cell. A photoactive layer of the ternary polymer solar cell includes two non-fullerene electron acceptors with large planarity. The weight percentage composition of the photoactive layer in the ternary polymer solar cell is: 41.6-50% of polymer electron donor, 0-50% of polymer electron acceptor, and 0-50% of non-fullerene perylene diimide (PDI) electron acceptor. The non-fullerene PDI electron acceptor is added into the photoactive layer to broaden the spectral absorption of the photoactive layer, improve the phase separation of the photoactive layer and inhibit the recombination of bimolecular charges, resulting in more efficient generation and transport of charges, thereby increasing a short-circuit current density of the ternary polymer solar cell device, and finally improving the power conversion efficiency of the ternary polymer solar cell device. Moreover, a new direction is provided for the selection of the all-polymer non-fullerene acceptor.
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5.发明公开公开(公告)号：US20240099126A1
公开(公告)日：2024-03-21
申请号：US18469581
申请日：2023-09-19
发明人： Ligang Xu , Wenbo Jia , Dongdong Yan
摘要： A preparation method of perovskite film based on semicarbazide hydrochloride (SEM-HCl) additive and a preparation method of photovoltaic device are provided, a perovskite optimized crystallization strategy is provided, a tin-based perovskite thin film is prepared based on a solution method, and a purpose of regulating and controlling perovskite crystallization is achieved by means of a cross-linking effect of special groups in SEM-HCl and perovskite components. Defects of crystals of the prepared perovskite film are reduced, the non-radiative recombination in a transmission process of carriers is suppressed, and a photoelectric conversion efficiency and a photovoltaic device stability are remarkably improved.
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