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Perovskite transparent photovoltaic glass and preparation method thereof

A technology of photovoltaic glass and transparent conductive glass, which is applied in photovoltaic power generation, semiconductor/solid-state device manufacturing, and sustainable buildings, and can solve problems such as unevenness, poor battery performance, and low film thickness of the absorbing layer

Inactive Publication Date: 2021-05-25
RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Perovskite CH with Cl / Br 3 NH 3 PbCl 3 have a wide band gap and strong absorption ability to ultraviolet light, so they are very suitable as the absorbing layer material of transparent solar cells, but due to the low solubility of wide band gap perovskite materials in organic solvents, the current preparation The film thickness of the absorbing layer is low, prone to holes, not uniform enough, and the battery performance is not good

Method used

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  • Perovskite transparent photovoltaic glass and preparation method thereof
  • Perovskite transparent photovoltaic glass and preparation method thereof
  • Perovskite transparent photovoltaic glass and preparation method thereof

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preparation example Construction

[0045] The preparation method of the perovskite layer uses a two-step method.

[0046] The hole transport layer is 2,2',7,7'-tetrakis[N,N-bis(4-methoxyphenyl)amino]-9,9'-spirobifluorene spiro-OMeTAD, poly[ Bis(4-phenyl)(2,4,6-trimethylphenyl)amine]PTAA, carbon nanotube CNT, cuprous thiocyanate CuSCN or poly 3-hexylthiophene P3HT, etc.

[0047] The transparent electrode is a metal oxide / conductive metal / metal oxide sandwich electrode or a transparent conductive oxide electrode.

[0048] The metal oxides include MoO 3 , V 2 o 5 、WO 3 and other transition metal oxides.

[0049] The conductive metal includes Au, Ag, Cu and the like.

[0050] When the battery structure is p-i-n type, the transparent conductive glass is a transparent conductive glass substrate such as indium tin oxide ITO, fluorine-doped tin oxide FTO, or the like.

[0051] The hole transport layer is poly 3,4-ethylenedioxythiophene / polystyrene sulfonate PEDOT:PSS, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)ami...

Embodiment 1

[0061] The structure of an n-i-p type photovoltaic glass is a conductive glass, a dense electron transport layer, a wide bandgap perovskite light-absorbing layer, a hole transport layer, and a transparent electrode from bottom to top.

[0062] The preparation method is as follows:

[0063] (1) After ultrasonically cleaning conductive glass such as ITO or FTO, prepare TiO by spin coating, spray coating, and chemical bath deposition 2 , SnO 2 , ZnO and other dense electron transport layers, the thickness is about 30-50nm.

[0064] (2) PbX 2 Dissolve in dimethyl sulfoxide or N,N-dimethylformamide to prepare a lead halide solution, heat and stir at 50°C-70°C to dissolve, take 40-80μL lead halide solution and deposit it on a transparent surface coated with a dense electron transport layer Conductive glass surface, spin dry.

[0065] (3) After it cools naturally, place it in CH 3 NH 3 Cl, CH 3 NH 3 Br or HC(=NH)NH 2 Cl, HC(=NH)NH 2 React in the alcohol solution of Br for 1...

Embodiment 2

[0073] The structure of a p-i-n type photovoltaic glass is a conductive glass, a hole transport layer, a wide bandgap perovskite light-absorbing layer, an electron transport layer, and a transparent electrode from bottom to top.

[0074] The preparation method is as follows:

[0075] (1) After ultrasonically cleaning conductive glass such as ITO or FTO, prepare PEDOT:PSS, NiO by spin coating method x Or a hole transport layer such as PTAA.

[0076] (2) PbX 2 Dissolve in dimethyl sulfoxide or N,N-dimethylformamide to prepare a lead halide solution, heat and stir at 50°C-70°C to dissolve, take 40-80μL lead halide solution and deposit it on the transparent surface coated with the hole transport layer Conductive glass surface, spin dry.

[0077] (3) After it cools naturally, place it in CH 3 NH 3 Cl, CH 3 NH 3 Br or HC(=NH)NH 2 Cl, HC(=NH)NH 2 React in the alcohol solution of Br for 10-30 minutes, rinse with ethanol, isopropanol and other alcohol solvents after the reacti...

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Abstract

The presesnt invention relates to perovskite transparent photovoltaic glass and the preparation method thereof, a wide bandgap perovskite material is adopted as a light absorption layer, ultraviolet light can be absorbed for power generation, meanwhile, visible light can penetrate through the perovskite transparent photovoltaic glass, and the light transmission of the glass is not affected. The absorption layer of the photovoltaic cell is wide bandgap perovskite which is prepared by a two-step deposition method and contains Cl and Br, and the transparent electrode is an ultrathin metal or transparent conductive oxide film. The method is simple in process and easy to operate, the visible light region transmittance of the obtained photovoltaic cell is larger than 60%, the photoelectric conversion efficiency is larger than 1%, and the method is expected to be applied to building curtain walls and car windows. The transparent photovoltaic cell can also be integrated with an electrochromic device to form self-powered intelligent photochromic glass which is expected to be applied to the fields of flight goggles, intelligent windows and the like. The transparent photovoltaic cell can be laminated with a common solar cell panel to reduce the damage of ultraviolet rays, improve the photoelectric conversion efficiency and improve the stability of the cell.

Description

technical field [0001] The invention belongs to the preparation and application of transparent photovoltaic glass, and relates to a perovskite transparent photovoltaic glass and a preparation method, more specifically, to a photovoltaic glass capable of absorbing ultraviolet light and transmitting visible light, which can be applied to building curtain walls, automobiles, etc. In occasions such as windows, it can also be integrated with electrochromic devices or stacked solar cells. Background technique [0002] Traditional glass has the function of transmitting light and isolating internal and external spaces. In order to make glass have more functions and meet the requirements of modern buildings for energy conservation and environmental protection, photovoltaic glass that has the function of light transmission and can convert solar energy into electrical energy was invented. [0003] The application of transparent photovoltaic (TPV) technology in building windows can not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/00H10K30/15H10K30/151H10K30/152H10K30/40Y02E10/549Y02B10/10
Inventor 李祯刘萃丁艳方秦倩倩袁楚涵邱泉润
Owner RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN
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