Full-inorganic perovskite solar energy cell prepared based on spray auxiliary method and preparation method and application of full-inorganic perovskite solar energy cell

A technology of solar cells and inorganic calcium, which is applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of unfavorable large-scale commercial application and small device area, so as to improve the photoelectric conversion efficiency, stability, and repeatability. The effect of simple preparation method

Inactive Publication Date: 2018-09-18
JINAN UNIVERSITY
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Problems solved by technology

[0003] Although the photoelectric conversion efficiency of small-sized devices has reached the basic requirements for commercialization, the current CsPbBr 3 The light-absorbing layer is prepared by spin-coating deposition technology, resulting in a small device area, which is not conducive to its large-scale commercial application

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  • Full-inorganic perovskite solar energy cell prepared based on spray auxiliary method and preparation method and application of full-inorganic perovskite solar energy cell
  • Full-inorganic perovskite solar energy cell prepared based on spray auxiliary method and preparation method and application of full-inorganic perovskite solar energy cell
  • Full-inorganic perovskite solar energy cell prepared based on spray auxiliary method and preparation method and application of full-inorganic perovskite solar energy cell

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Embodiment 1

[0035] The preparation method of the all-inorganic perovskite solar cell prepared based on the spray-assisted method of the present invention comprises the following steps:

[0036] 1. Dissolve 1 g of molybdenum disulfide nanopowder in 100 mL of dimethylbenzylamine solution (mass concentration ≥ 98%); prepare molybdenum disulfide dispersion;

[0037] 2. After stirring the molybdenum disulfide dispersion evenly, ultrasonically disperse it for 4-6 hours, and take the supernatant after standing;

[0038] 3. Put the supernatant in a three-way flask, stir and heat at 120-140°C for 4-6 hours, and centrifuge to remove the residue to obtain a uniformly distributed molybdenum disulfide quantum dot solution;

[0039] 4. Prepare an ethanol solution of isopropyl titanate with a concentration of 0.1-1 mol / L, a titanium dioxide slurry with a solubility of 0.05-0.1 g / mL, and an aqueous solution of titanium tetrachloride with a concentration of 0.01-0.05 mol / L ; Preparation concentration is ...

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Abstract

The invention provides a full-inorganic perovskite solar energy cell prepared based on spray auxiliary method and a preparation method and application of the full-inorganic perovskite solar energy cell. The preparation method comprises steps of preparing a titanium dioxide electronic transmission layer on FTO conductive glass; then, coating the titanium dioxide electronic transmission layer with lead bromide solution in a spinning manner; coating the titanium dioxide electronic transmission layer with brominated caesium solution so as to form high-purity big-grained CsPbBr3 perovskite light-absorption layer; then, depositing interface modification layer materials; and finally, carrying out knife coating on a carbon back electrode so as to assembly the materials into the full-inorganic perovskite solar energy cell. According to the invention, by improving a preparation method and optimizing interface level structures of a carbon electrode and a perovskite light-absorption layer, the photoelectric conversion efficiency and the stability of the cell are improved; and the preparation method is simple and feasible, and low in cost and has commercial prospects of large-area production.

Description

technical field [0001] The invention belongs to the field of new material technology and new energy technology, and specifically relates to an all-inorganic perovskite solar cell prepared based on a spray-assisted method, a preparation method and application thereof. Background technique [0002] Organic-inorganic hybrid perovskite solar cells are a new type of thin-film solar cells with mesoscopic structure that have developed rapidly in recent years. At present, the highest photoelectric conversion efficiency has reached more than 22%. The wet environment is easy to degrade resulting in poor device stability. Inorganic CsPbBr 3 Perovskite materials have excellent environmental stability, and all-inorganic perovskite solar cells have rapidly developed into stars in the field of solar photovoltaic power generation. [0003] Although the photoelectric conversion efficiency of small-sized devices has reached the basic requirements for commercialization, the current CsPbBr 3...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/04
CPCH01L31/04H01L31/18Y02E10/50Y02P70/50
Inventor 唐群委窦大伟
Owner JINAN UNIVERSITY
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