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Perovskite-based thin film solar cell and preparation method thereof

A thin-film solar cell and perovskite technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of intolerant to polar solvents, high temperature, heavy doping, etc., and achieve low cost, simple operation, thin film Thickness controllable effect

Active Publication Date: 2016-08-17
深圳市华物光能技术有限公司
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  • Claims
  • Application Information

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Problems solved by technology

However, because perovskite-type organic lead halide materials are not resistant to high temperature and polar solvents, they cannot be conventionally heavily doped. It is urgent to develop a simple, convenient and effective new interface structure to improve battery efficiency.

Method used

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  • Perovskite-based thin film solar cell and preparation method thereof
  • Perovskite-based thin film solar cell and preparation method thereof
  • Perovskite-based thin film solar cell and preparation method thereof

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Embodiment Construction

[0035] Before describing the embodiments of the present invention in detail, the battery efficiency measurement method used in the present invention will be introduced first. The photoelectric performance of the battery was measured by a computer-controlled constant potential / galvanostat (Princeton Applied Research, Model 263A). Connect the photoanode and photocathode of the prepared solar cell device to the working electrode and the counter electrode terminal of the constant potential / galvanostat, respectively. The light source uses a 500W xenon lamp, and the incident light intensity is 100mW / cm 2 , the illuminated area is 0.1cm 2 . Unless otherwise specified, the photoelectric performance measurements in the following examples are all carried out at room temperature.

[0036] Terms used in the present invention, unless otherwise indicated, are to be understood according to their conventional meanings in the technical field.

[0037] figure 1 is a schematic structural vi...

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Abstract

The invention provides a perovskite-based thin film solar cell and a preparation method thereof. The perovskite-based thin-film solar cell includes: an organometallic semiconductor light-absorbing layer with a perovskite structure; an electron blocking layer formed on the organometallic semiconductor light-absorbing layer, and the electron blocking layer is formed of an organic electron-blocking material; and a metal counter electrode formed on the electron blocking layer. The invention realizes the ohmic contact between the counter electrode and the perovskite-type organic lead halide material by setting the electron blocking layer, and can realize good back contact without further doping, avoiding the interference of the perovskite-type organic lead halide material Carry out difficult heavy doping, and obtain high-efficiency perovskite-based thin-film solar cells.

Description

technical field [0001] The invention relates to the technical field of thin film solar cells, in particular to a perovskite type thin film solar cell and a preparation method thereof. Background technique [0002] At present, traditional silicon-based solar cell technology is the most mature and widely used photovoltaic technology, but it is not conducive to large-scale application due to problems such as high cost and high pollution. Therefore, it is necessary to develop low-cost solar cell materials and technologies. New thin-film solar cells have attracted people's attention because of their low raw material cost and simple preparation process. Among them, finding new materials that are easy to synthesize, low cost and environmentally friendly is the only way to promote the development of thin film solar cells. Perovskite-type organic lead halide materials (such as CH 3 NH 3 wxya 3 (X=I, Br, Cl)) has attracted the attention and research interests of many researchers ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48H01L51/46
CPCH10K71/12H10K30/353H10K30/81Y02E10/549H10K85/50
Inventor 孟庆波徐余颛石将建罗艳红李冬梅
Owner 深圳市华物光能技术有限公司
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