[ZHAO, Jindong 赵锦栋, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, LEE, Nicholas 李良辉, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, LEE, Nicholas 李良辉, HUANG, Huifang 黄会方, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, LEE, Nicholas 李良辉, HUANG, Huifang 黄会方, GUO, Haihui 郭海辉, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, LEE, Nicholas 李良辉, HUANG, Huifang 黄会方, GUO, Haihui 郭海辉, REN, Yongsheng 任永生, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, LEE, Nicholas 李良辉, HUANG, Huifang 黄会方, GUO, Haihui 郭海辉, REN, Yongsheng 任永生, LI, Yong 李勇, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, LEE, Nicholas 李良辉, HUANG, Huifang 黄会方, GUO, Haihui 郭海辉, REN, Yongsheng 任永生, LI, Yong 李勇, LIN, Qingyan 林清沿, ZHAO, Jindong 赵锦栋, ZHANG, Xiyu 张曦予, WANG, Xinyu 王昕宇, LEE, Nicholas 李良辉, HUANG, Huifang 黄会方, GUO, Haihui 郭海辉, REN, Yongsheng 任永生, LI, Yong 李勇, LIN, Qingyan 林清沿, YANG, Fan 杨帆] Fl 7, Tiley Central Plaza, 中国广东省深圳市南山区海德3道天利中央商务广场A座7楼, Guangdong 518000No.3 Haide Road, Nanshan DistrictShenzhen, Guangdong 518000 A ball seat assembly and a ball throwing sliding sleeve type fracturing device. The ball throwing sliding sleeve type fracturing device comprises an inner sleeve (1), an outer sleeve (2), a fracturing ball (5) and a ball seat assembly (6). The inner sleeve (1) is slidably sleeved in the outer sleeve (2), the inner sleeve and the outer sleeve are respectively provided with a fracturing window, and the inner sleeve slides to open or close the fracturing window; the inner surface of the outer sleeve (2) is provided with a fracturing ball release groove (231), and the fracturing ball (5) is thrown to the ball seat assembly (6); when the ball seat assembly moves to the fracturing ball release groove, the fracturing ball generates a downward pushing force under the action of an external force and pushes multiple ball seat supports (61) to move outward in the radial direction, so that the fracturing ball passes through the ball seat assembly and drops to a next segment of the ball throwing sliding sleeve type fracturing device. The device achieves the purpose of fracturing an unlimited number of layers and segments by throwing only one ball, and can reduce construction costs, improve per-well production, and overcome the defect of level difference limitation of a cracking sliding sleeve used in the prior art and the defect that the sliding of the inner sleeve is affected after a shear pin is cut off.

[LI, Hanfang, SU, Shuojian, LIANG, Weifeng, CHEN, Changsong, LIN, Xiangling, LIU, Zhaohui, CHEN, Guodong, GUO, Yongsheng, GUO, Yongsheng] CN,Ningde, Fujian,No. 2 Xingang Road Zhangwan Town Jiaocheng District; Provided are an ionic compound and an application thereof, a perovskite precursor solution, a perovskite material, a solar material, a solar cell, and an electric apparatus. The ionic compound has a structure represented by any one of formulas (1) to (3). The ionic compound can improve the stability of perovskite materials and thus improve the efficiency and stability of solar cells.

[GUO YU, CHENG NIANSHOU, DING RAN, CHEN JUNHUA, DING ZHIJIE, GUO TENG, ZHOU YONGSHENG, YAN HAORAN] CN

[GUO HONGBING, CHENG CHUNLIANG, CHENG YONGSHENG, GUO PENG] CN

[LIANG, Weifeng 梁伟风, GUO, Wenming 郭文明, SUN, Juanjuan 孙娟娟, LUAN, Bo 栾博, GUO, Yongsheng 郭永胜, CHEN, Guodong 陈国栋] No.2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 The present application provides a perovskite solar cell, which comprises conductive glass, a hole transport layer, a perovskite layer, an electron transport layer, and a back electrode, wherein a passivation layer is arranged between the hole transport layer and the perovskite layer, and the passivation layer comprises an amide and/or a cation thereof; the amide comprises a compound of formula (1) and/or formula (2), wherein R1 and R2 are each independently selected from hydrogen, -R, -NR2, -NHR, -NH2, -OH, -OR, -NHCOR, -OCOR, and -CH2COOH, R represents a linear or branched alkyl group having 1-10 carbon atoms, m is an integer from 0 to 10, n is an integer from 1 to 10, and Ar is selected from C5-C10 aryls or heteroaryls, and is optionally pyridine, pyran, thiopyran, benzene, naphthalene, quinoline, isoquinoline, pyrrole, pyrazole, pyrimidine, pyrazine, pyridazine, or isoindole. The perovskite solar cell provided by the present application has higher photovoltaic conversion efficiency and better long-term stability. The present application provides a perovskite solar cell, which comprises conductive glass, a hole transport layer, a perovskite layer, an electron transport layer, and a back electrode, wherein a passivation layer is arranged between the

[Yundou Xu, Luyao Guo, Jinwei Guo, Yang Chen, Jiantao Yao, Yongsheng Zhao] The present invention discloses a modular deployable antenna mechanism based on a symmetrically structural tetrahedron combination unit. The deployable antenna mechanism is formed by multiple deployable antenna modules, two adjacent deployable antenna modules are connected through a first face plate at the bottom of one deployable antenna module and a second face plate at the bottom of the other deployable antenna module, the first face plate and the second face plate are connected through a Hooke joint, an unconnected first face plate and second face plate of the two adjacent deployable antenna modules are connected through a first synchronizing bar, a middle portion of a bar body of the first synchronizing bar can be folded, and the first synchronizing bar is rotationally connected with the first face plate and the second face plate.

[Yundou Xu, Luyao Guo, Jinwei Guo, Yang Chen, Jiantao Yao, Yongsheng Zhao] CN Qinhuangdao City The present invention discloses a modular deployable antenna mechanism based on a symmetrically structural tetrahedron combination unit. The deployable antenna mechanism is formed by multiple deployable antenna modules, two adjacent deployable antenna modules are connected through a first face plate at the bottom of one deployable antenna module and a second face plate at the bottom of the other deployable antenna module, the first face plate and the second face plate are connected through a Hooke joint, an unconnected first face plate and second face plate of the two adjacent deployable antenna modules are connected through a first synchronizing bar, a middle portion of a bar body of the first synchronizing bar can be folded, and the first synchronizing bar is rotationally connected with the first face plate and the second face plate.

[TU, Bao 涂保, LIANG, Weifeng 梁伟风, SU, Shuojian 苏硕剑, GUO, Wenming 郭文明, GUO, Yongsheng 郭永胜, CHEN, Guodong 陈国栋] {No.2 Xingang Road, Zhangwan Town, Jiaocheng District, 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100;CN CN(CN)(CN)} The present application relates to a perovskite solar cell and a preparation method therefor, and an electric device. The perovskite solar cell comprises a transparent electrode, a first functional layer, a perovskite layer, a second functional layer and a second electrode layer, which are arranged in a stacked manner, wherein the perovskite layer comprises a three-dimensional perovskite layer and a two-dimensional perovskite layer which are arranged in a stacked manner; the surface of the three-dimensional perovskite layer making contact with the first functional layer is a first surface, the remaining surfaces form a second surface, and the two-dimensional perovskite layer covers the entire second surface.

[MA, Junfu 马俊福, CHEN, Changsong 陈长松, XIANG, Ling 项翎, GUO, Wenming 郭文明, GUO, Yongsheng 郭永胜] No.2 Xingang Road, Zhangwan Town, Jiaocheng District, 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 The present application relates to a solar cell and a preparation method therefor, and a photovoltaic assembly, a system and an electric apparatus. The solar cell comprises a first electrode layer, a first hole transport layer, a perovskite light absorption layer and a second electrode layer, which are arranged in a stacked manner, wherein components of the first hole transport layer comprise P-type tin oxide. The solar cell has a relatively high photoelectric conversion efficiency.

[CHEN, Changsong, GUO, Wenming, TU, Bao, GUO, Yongsheng, CHEN, Guodong, OUYANG, Chuying] CN,Ningde, Fujian 352100,2 Xingang Road, Zhangwan Town Jiaocheng District; The present application provides a perovskite solar battery and a photovoltaic assembly. The perovskite solar battery includes a first electrode, a second electrode, and a light absorbing layer between the first electrode and the second electrode. The perovskite solar battery further includes a first hole transport layer and a second hole transport layer, the first hole transport layer being located between the second hole transport layer and the light absorbing layer, where the second hole transport layer is located between the first electrode and the light absorbing layer, or the second hole transport layer is located between the second electrode and the light absorbing layer. A first hole transport material of the first hole transport layer is selected from one of PTAA, and nickel oxide that is doped with a first doping element or is undoped, and a second hole transport material of the second hole transport layer includes at least one of a P-type transition metal oxide semiconductor material and a P-type transition metal halide semiconductor material capable of isolating water and oxygen.