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Application of organic phosphonate compound, rubidium-doped perovskite solar battery thin film and preparation method therefor

A solar cell and organic phosphonic acid technology, which can be used in circuits, photovoltaic power generation, electrical components, etc., can solve the problems that limit the development of perovskite batteries, unstable performance of methylamine lead iodine perovskite, and easy hydrolysis.

Active Publication Date: 2017-09-01
广州光鼎科技集团有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The current halide perovskites mainly include the organic-inorganic metal compound methylamine lead iodide (CH 3 N 3 wxya 3 , X is one or more of Cl / Br / I), the main synthetic component of methylamine lead iodide is methylamine halide (CH 3 NH 3 X) It is easily hydrolyzed in water, which leads to the extremely unstable performance of methylamine lead iodine perovskite, which limits the development of perovskite batteries to a large extent

Method used

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  • Application of organic phosphonate compound, rubidium-doped perovskite solar battery thin film and preparation method therefor
  • Application of organic phosphonate compound, rubidium-doped perovskite solar battery thin film and preparation method therefor
  • Application of organic phosphonate compound, rubidium-doped perovskite solar battery thin film and preparation method therefor

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specific Embodiment approach 2

[0074] The method for preparing the compound shown in formula (II), comprising: in the presence of concentrated hydrochloric acid, the compound shown in formula (II-VI) is carried out reflux reaction with phosphorous acid and formaldehyde donor; Preferably said formaldehyde donor is able to provide Substances with formaldehyde structure,

[0075]

[0076] R in formula (II) and formula (II-VI) 1 The definitions of and n are the same as the aforementioned definitions of the present invention.

specific Embodiment approach 3

[0078] The method for preparing the compound shown in formula (III), comprising: reacting the compound shown in formula (III-VII) with sodium hexamethyldisilazide and diethylphosphorous oxychloride, and then performing hydrolysis;

[0079]

[0080] R in formula (III) and formula (III-VII) 1 The definition of and n is the same as the aforementioned definition of the present invention; R in the formula (III-VII) 3 for C 1-8 The alkyl group, more preferably methyl, ethyl, isopropyl, n-butyl and tert-butyl, particularly preferably isopropyl.

specific Embodiment approach 4

[0082] The method for preparing the compound shown in formula (IV), comprising: reacting the compound shown in formula (IV-VIII) with tetraester of methine diphosphonate, and then performing hydrolysis;

[0083]

[0084] R in formula (IV) and formula (IV-VIII) 1 The definition of and n is the same as the aforementioned definition of the present invention; X in the formula (IV-VIII) 2 is a halogen element, preferably chlorine, bromine or iodine, more preferably bromine.

[0085] Those skilled in the art can easily obtain the specific preparation of the organic phosphonic acid compound shown in formula (1) claimed in the present invention according to the method provided in the above specific embodiment and the exemplary preparation method provided in the preparation example of the present invention Methods, the present invention does not state the preparation methods for each specific compound one by one, those skilled in the art should not understand it as a limitation of ...

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Abstract

The invention relates to the field of a solar battery thin film, and discloses an application of an organic phosphonate compound, a rubidium-doped perovskite solar battery thin film and a preparation method therefor. The application refers to the application of the organic phosphonate compound as shown in the formula (I) in preparation of the rubidium-doped perovskite solar battery thin film. The rubidium-doped perovskite solar battery thin film comprising the organic phosphonate compound disclosed in the invention has excellent photoelectric conversion efficiency, and the photoelectric conversion efficiency stability of a solar battery comprising the thin film can be improved; and meanwhile, influence of a high-temperature and high-humidity environment to the solar battery can be avoided.

Description

technical field [0001] The invention relates to the field of solar cell thin films, in particular to the application of organic phosphonic acid compounds in the preparation of rubidium-doped perovskite solar cell thin films, a rubidium-doped perovskite solar cell thin film modified by organic phosphonic acid compounds and its preparation method. Background technique [0002] Halide-based perovskites have the characteristics of excellent light absorption ability, considerable ambipolar carrier mobility, and ultra-long electron-hole diffusion length, and have gradually become one of the most important research hotspots in the field of photovoltaics today. . In 2012, South Korea's Nam-Gyu Park group (Sci.Rep., 2,591 / 1-591 / 7, 2012) and the British Snaith group (Scinece, 338, 643-647, 2012) reported perovskite-based sensitization Solid-state mesoporous solar cells and mesoporous superstructure hybrid solar cells have efficiencies of 9.7% and 10.9%, respectively. In 2015, the K...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46
CPCH10K85/60H10K85/654H10K30/151Y02E10/549
Inventor 成昌梅王成彦武东
Owner 广州光鼎科技集团有限公司
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