Perovskite material, solar cell device and preparation method

A perovskite material and perovskite technology, applied in the field of materials, can solve problems such as difficulty in adapting to harsh environments, difficulty in suppressing ions, and limited stability improvement

Active Publication Date: 2021-10-01
中山复元新材料科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing methods to improve the stability of perovskite materials have limited stability improvement, making it difficult to adapt to harsh environments
For example, the method of forming a hydrogen bond with perovskite, because the hydrogen bond is a weak interaction, is easy to break under harsh environments, and the stability improvement is limited; The movement of ions at grain boundaries improves the stability of perovskite materials, but the self-crosslinking crosslinker polymer essentially has no interaction with the perovskite components, and can only block the movement of ions in the grain boundaries, which is not effective. Curing mobile components, so it is difficult for self-crosslinking crosslinked polymers to inhibit the movement of ions in other defects, such as vacancies, Frenkel defects, and the stability improvement is therefore limited

Method used

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  • Perovskite material, solar cell device and preparation method
  • Perovskite material, solar cell device and preparation method
  • Perovskite material, solar cell device and preparation method

Examples

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Embodiment 1

[0038] In this example, an organic-inorganic hybrid perovskite material was prepared and a perovskite solar cell was prepared using the material. The transparent substrate of the perovskite solar cell is quartz glass; the first transparent electrode layer is ITO with a thickness of 180nm; the hole transport layer is Spiro-OMeTAD with a thickness of 40nm; formed; the main component of the perovskite layer is Cs 0.05 (MA 0.13 FA 0.87 ) 0.95 Pb(I 0.87 Br 0.13 ) 3 , the thickness is 580nm; the electron transport layer is SnO 2 , with a thickness of 30nm; the second electrode layer is gold with a thickness of 80nm. The preparation steps of perovskite solar cells are as follows:

[0039] (1) ITO conductive glass is cleaned with glass cleaning solution, acetone, and ethanol in sequence, and after drying, use an ultraviolet ozone cleaner to remove residual organic matter.

[0040] (2) 360μL SnO 2 Mixed with 2.4mL deionized water, prepared SnO by spin coating method 2 After ...

Embodiment 2

[0045] In this example, an organic-inorganic hybrid perovskite material was prepared and a perovskite solar cell was prepared using the material. The transparent substrate of the perovskite solar cell is quartz glass; the first transparent electrode layer is ITO with a thickness of 180nm; the electron transport layer is SnO 2 , with a thickness of 30nm; the perovskite layer is (FAPbI 3 ) 1-x-y (MAPbBr 3 ) x ) (MAPbCl 3 ) y ), where x, y, and 1-x-y are greater than or equal to 0 and less than or equal to 1 respectively, and the thickness is 700nm; the hole transport layer is Spiro-OMeTAD, and the thickness is 100nm; the second electrode layer is gold, and the thickness is 80nm. The preparation steps of the perovskite solar cell of the present embodiment are as follows:

[0046] (1) ITO conductive glass is cleaned with glass cleaning solution, acetone, and ethanol in sequence, and after drying, use an ultraviolet ozone cleaner to remove residual organic matter.

[0047] (...

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Abstract

The invention relates to a perovskite material, a solar cell device and a preparation method. The perovskite material is prepared by cross-linking a main body material and a hydrophobic micromolecular cross-linking agent, wherein the main body material is organic-inorganic perovskite, and the hydrophobic micromolecular cross-linking agent is a trifluoropropyl bis(aziridine) compound. The perovskite material is uniform and compact in film formation and has excellent water vapor stability, the solar cell device is high in operation stability, and the preparation methods of the perovskite material and the solar cell device are simple and feasible.

Description

technical field [0001] The invention relates to the field of materials, in particular to a perovskite material, a solar cell device and a preparation method. Background technique [0002] Organic-inorganic hybrid perovskite materials and their devices are easily degraded in water vapor, light or high temperature environments. The existing methods to improve the stability of perovskite materials mainly include: (1) by introducing additive molecules to form hydrogen bonds with the organic components (methylamine, formamidine) of perovskite materials, through the weak interaction of hydrogen bonds, Solidify the organic component to inhibit its movement or degradation in the perovskite; (2) introduce a cross-linking polymer. The crosslinking agent polymer can exist at the grain boundary of the perovskite film, which blocks the migration / diffusion channel of ions inside the perovskite along the grain boundary, thereby improving the stability of the perovskite material. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C22/08C07C211/04C07C257/12C07D213/26H01L51/46H01L51/48
CPCC07C22/08C07C211/04C07C257/12C07D213/26H10K71/15H10K71/12H10K85/60H10K85/654Y02E10/549
Inventor 詹义强刘凯李崇源
Owner 中山复元新材料科技有限责任公司
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