CN-224234106-U - Periodic perovskite crystal interval-arranged thin film battery assembly

Abstract

The utility model discloses a periodic thin film battery assembly with perovskite crystals arranged at intervals, which comprises a transparent substrate, a transparent conductive layer, a hollowed-out grid layer, a first transmission layer, a perovskite crystal layer, a second transmission layer, a back electrode, a packaging adhesive film layer and a back plate, wherein the transparent substrate is provided with a light incident surface and a back surface which are opposite, the transparent conductive layer is laminated on the back surface of the transparent substrate, the hollowed-out grid layer is laminated on the transparent conductive layer, the hollowed-out grid layer is formed by mutually splicing a plurality of pits, the bottoms of the pits are transparent conductive layers, the pits are provided with depth h, the first transmission layer is laminated on the transparent conductive layer and respectively positioned in the pits, the perovskite crystal layer is laminated on the first transmission layer and respectively positioned in the pits, the second transmission layer is laminated on the perovskite crystal layer, the back electrode is laminated on the second transmission layer, the packaging adhesive film layer is laminated on the back electrode, and the back plate is laminated on the packaging adhesive film layer.

Inventors

• SU WEIYAN
• CHU WENJING
• LIN JINXI
• LIN JINHAN

Assignees

• 常州亚玛顿股份有限公司

Dates

Publication Date

20260512

Application Date

20250415

Claims (6)

1. 1. A periodic thin film battery assembly having spaced apart perovskite crystals, the thin film battery assembly comprising: A transparent substrate (1) having a light incident surface (11) and a backlight surface (12) facing each other; A transparent conductive layer (2) that is provided on the backlight surface (12) of the transparent substrate (1) in a stacked manner; The hollowed-out grid layer (3) is arranged on the transparent conductive layer (2) in a stacked mode, the hollowed-out grid layer (3) is formed by mutually splicing a plurality of pits (31), the bottom of each pit (31) is the transparent conductive layer (2), and the pits (31) have depth h; A first transmission layer (4) that is provided on the transparent conductive layer (2) in a stacked manner and that is located in each pit (31); Perovskite crystal layers (5) that are provided on the first transport layer (4) in a stacked manner and that are each located in a pit (31); a second transport layer (6) that is provided on the perovskite crystal layer (5) in a stacked manner; a back electrode (7) which is provided on the second transmission layer (6) in a stacked manner; a packaging adhesive film layer (8) which is laminated on the back electrode (7); and a back plate (9) which is laminated on the packaging adhesive film layer (8).
2. 2. A periodic arrangement of perovskite crystals as claimed in claim 1, wherein the pockets (31) are formed by the surrounding of a resin material.
3. 3. A periodic arrangement of perovskite crystals as claimed in claim 1, wherein the pits (31) are arranged in a regular or irregular polygonal configuration.
4. 4. The thin-film battery assembly with periodic perovskite crystals arranged at intervals according to any one of claims 1-3, wherein the side length of each side of each pit (31) is 10-200 nm, and the depth h of each pit (31) is more than or equal to 50nm and less than or equal to 1000nm.
5. 5. A periodic arrangement of perovskite crystals as claimed in claim 1, wherein adjacent two of the pockets (31) are co-edge spliced.
6. 6. A periodic arrangement of perovskite crystals as claimed in claim 1, wherein the second transport layer (6) is located in each pit (31) or not located in each pit (31).

Description

Periodic perovskite crystal interval-arranged thin film battery assembly Technical Field The utility model relates to the technical field of perovskite thin film batteries, in particular to a periodic thin film battery component with perovskite crystals arranged at intervals. Background Perovskite materials are widely used in optoelectronic devices for their excellent optoelectronic properties (e.g., high absorption coefficient, long carrier diffusion length). At present, the widely adopted perovskite crystal thin film is mostly prepared based on a solution treatment process (solution method), and the solution method inevitably generates high-density defects in the perovskite thin film crystallization process in the preparation process, wherein the defects comprise various types of defects such as point defects, extended defects, shallow energy level defects, deep energy level defects and the like, and the defects are main causes of serious non-radiative recombination in the photoelectric device, so that the improvement of the photovoltaic characteristics and the stability of the solar cell device is limited. Disclosure of utility model The utility model aims to solve the problem that the perovskite crystal film prepared by the solution method at present has a plurality of high-density defects, so that the stability of a perovskite battery is poor, and designs a periodic film battery component with perovskite crystals arranged at intervals, thereby solving the problem. In order to achieve the above purpose, the utility model is realized by the following technical scheme: The utility model designs a periodic perovskite crystal interval-arranged thin film battery component, which comprises: A transparent substrate having a light incident surface and a light back surface opposite to each other; a transparent conductive layer that is provided on the backlight surface of the transparent substrate in a stacked manner; The hollowed-out grid layer is arranged on the transparent conductive layer in a stacked mode and formed by mutually splicing a plurality of pits, the bottom of each pit is the transparent conductive layer, and the pits have depth h; A first transmission layer which is laminated on the transparent conductive layer and is respectively positioned in each pit; Perovskite crystal layers which are stacked on the first transmission layer and are respectively positioned in the pits; A second transport layer stacked on the perovskite crystal layer; a back electrode stacked on the second transmission layer; the packaging adhesive film layer is arranged on the back electrode in a stacked manner; And the backboard is arranged on the packaging adhesive film layer in a lamination mode. According to the periodic perovskite crystal interval-arranged thin film battery component, the hollow grid layer formed by arranging the plurality of concave pits in an array mode is arranged on the transparent conductive layer, and the concave pits can limit the growth direction of perovskite crystals in the perovskite thin film crystallization process, so that the arrangement and interval of the perovskite crystals are controlled, defects in the crystallization process are avoided, the film forming quality of the perovskite thin film can be improved, and the purpose of optimizing the performance of a photoelectric device, such as improving light absorption, reducing defects, enhancing stability and the like, is achieved. Further, the periodic perovskite crystal interval-arranged thin film battery component is characterized in that the pits are formed by enclosing a resin material. Further, the periodic perovskite crystal interval-arranged thin film battery component is characterized in that the pits are arranged in a regular or irregular polygonal structure. Furthermore, the periodic perovskite crystal interval-arranged thin film battery component is characterized in that the side length of each side of the pit is 10-200 nm, and the depth h of the pit is more than or equal to 50nm and less than or equal to 1000nm. Furthermore, the periodic perovskite crystal interval arranged thin film battery component is formed by splicing the adjacent two pits together. Further, the second transmission layer is positioned in each pit or not positioned in each pit. Specifically, the second transmission layer is located in each pit or not, and can be adjusted according to design requirements, if the thicknesses of the first transmission layer and the perovskite crystal layer are designed to exceed the depth h of the pit, the second transmission layer is not located in the pit. The utility model has the beneficial effects that: (1) The periodic perovskite crystal interval arranged thin film battery component has the advantages that the arrangement of perovskite crystals after the perovskite thin film is crystallized can be helped to be optimized, the light absorption and carrier transmission efficiency can be improved, meanwhile, the growth dir