7results about How to "Improve humidity stability" patented technology

This invention discloses a perovskite fluorescent patterning device and method based on laser-induced dehydration phase transition, belonging to the field of perovskite material laser processing technology. Addressing the problems of existing laser ablation damaging film integrity, difficulty in eliminating background fluorescence interference, and lack of mechanisms for multi-level grayscale control, this invention provides a hydrated perovskite precursor film that is transparent and fluorescence-free in the visible light band. Under ambient humidity conditions not exceeding 50% RH, the film is locally irradiated with an ultrafast laser. Utilizing water molecules in the film's own hydration structure, laser-induced local dehydration and inorganic framework rearrangement are achieved, directly writing perovskite phase transition patterns with multi-level fluorescence grayscale onto the transparent, fluorescence-free film.

The utility model discloses a kind of composite magnetic plastic co-extrusion door seal and door body structure, belong to refrigeration equipment technical field, door seal, including main air bag, the side of main air bag is sequentially connected with magnet strip bag, connecting air bag and inner air bag, the side of inner air bag is provided with magnetic plastic co-extrusion magnetic strip, the other side of main air bag is provided with clamping chamber, the lower part of inner air bag right side wall is obliquely provided with auxiliary fin edge;Door body structure, including door seal, door seal is set in the opening side of door shell, the inside of door shell is provided with door lining, clamping chamber is set in the mounting groove of door lining, the opposite side of door shell is provided with U shell, the inside of U shell is provided with inner container, the inside of inner container and magnetic plastic co-extrusion magnetic strip corresponding position is provided with suction piece.The utility model is through magnet strip and door seal co-extrusion process, inside and outside magnet strip synergic effect and process structure optimization, sealing performance and production efficiency are realized with the synchronous promotion.

The application discloses a kind of phthalocyanine copper / inverted pyramid perovskite heterojunction photodetector and preparation method, comprising the following steps: 1) etching out the silicon piece with pyramid surface microstructure, as the base of growing perovskite single crystal;2) preparation perovskite solution, utilize silicon piece and glass piece as the frame of growth area restriction, utilize seed growth method, space limited method and inverse temperature crystallization method combined growth method preparation surface pyramid perovskite single crystal;3) utilize thermal evaporation in perovskite single crystal surface evaporation phthalocyanine copper film formation heterojunction, then utilize conductive carbon paste as upper and lower electrode preparation photodetector.The photodetector prepared by the application is stable at normal temperature and pressure, and has better photoelectric response relative to the control group device in a high humidity environment, and the device has good long-time humidity stability, which has guiding significance for the future high-performance photodetection field in high humidity environment such as sea, ship and island.

The utility model relates to the technical field of turnover box, concretely is a kind of gourd family liana seedling transportation turnover box with moisturizing function, including box, side door is installed in box one side, multiple storage components are installed in box, vertical placing groove is opened in the inner wall of box, moisturizing layer is installed in placing groove, water storage tank that box bottom end is provided with with the bottom end contact of moisturizing layer, humidity sensor is arranged in the inside of box top end, control module is arranged in the outside of box, the box is provided with spraying humidification component, the utility model provides moisture basis for moisturizing layer by water storage tank, moisturizing layer maintains the basic humidity in box by its own characteristics, humidity sensor monitors the temperature and humidity in box in real time and data transmission to control module, when humidity is lower than set value, control module starts spraying humidification component to supplement humidity, realizes the purposes of automation, precision control of humidity in box.

A high-efficiency, humidity-stable perovskite solar cell that synergistically improves defects and ion migration, comprising a perovskite active layer, wherein the chemical formula of the perovskite material is FA. x MA y Cs z PbX3, x+y+z=1, where X is selected from one, two, or three elements from I, Br, and Cl; the perovskite active layer also contains a variable-valence material. This invention uses a variable-valence material as an additive in the perovskite precursor solution, utilizing cation passivation of Pb. 0 I 0 Defects, anions and uncoordinated Pb 2+ Defects can improve the phase stability of perovskite crystals; further, positive / negative charged polymers can be used for double-sided passivation on both sides of the perovskite film, utilizing the positive / negative charged polymers to passivate oxygen vacancies and Pb. 2+ Defects such as these are eliminated, and ion migration at the interface is also blocked; the perovskite solar cell device of the present invention has both high photoelectric conversion efficiency and high humidity stability.

The application discloses a multifunctional additive modified inverted perovskite solar cell. The structure of the cell is composed of a bottom electrode, a hole transport layer, a modification layer, a perovskite light absorption layer, an electron transport layer, a buffer layer and a counter electrode from top to bottom. The modification layer is made of one or two of PEAI, Cl-PEAI and F-PEAI. The perovskite light absorption layer is a perovskite containing 2-hydrazinobenzothiazole modification, and the doping amount of 2-hydrazinobenzothiazole in the perovskite active layer is 0.01-10wt%. The application effectively improves the photoelectric conversion efficiency of the perovskite solar cell, exhibits excellent photoelectric conversion performance, and has a wide and good application prospect.

The invention discloses a preparation method of an atomic-scale precise halogen-fluorine-containing mercaptan co-protected gold and silver nanocluster and an application of the atomic-scale precise halogen-fluorine-containing mercaptan co-protected gold and silver nanocluster in a perovskite solar cell. The molecular formula of the nanocluster is [AuAg (SPh (3, 5-CF)) Br] (PPh), and the preparation method comprises the following steps: reacting a fluorine-containing thiol ligand HSPh (3, 5-CF) with chloroauric acid and silver nitrate in a mixed solvent of methanol and dichloromethane, reducing by sodium borohydride, adding tetraphenylphosphonium bromide, and reacting to obtain the nanocluster. Black blocky crystals are obtained through diffusion crystallization in a dichloromethane / normal hexane system. The cluster has a unique pie-shaped structure, the inner core of the cluster is an Auicosahedron and is wrapped by an Agatom shell layer, the {100} crystal face is densely covered by 20 Br ligands, 10-CF-containing thiol ligands form a hydrophobic ring belt at the waist part of the cluster, and the surface halogen coverage rate is up to 66.7%. The cluster is used as an additive to be introduced into an electron transport layer of a perovskite cell, interface defects can be effectively passivated, moisture invasion can be inhibited, and therefore the photoelectric conversion efficiency and the environmental stability of the perovskite solar cell are remarkably improved.