ABO3 perovskite-based thin film solar cell

A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of ineffective use of light, limit light absorption, etc., and achieve the effects of improving efficiency, increasing light absorption, and improving stability

Inactive Publication Date: 2018-02-09
成都赛伦斯环保科技有限公司
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  • Abstract
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Problems solved by technology

However, the perovskite light-absorbing layers of the perovskite solar cells of the above-mentioned patents all adopt a planar structure, which will undoubtedly limit a certain amount of light

Method used

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  • ABO3 perovskite-based thin film solar cell
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[0020] Example

[0021] figure 1 The structure diagram of the perovskite-based thin film battery of the present invention is shown. like figure 1 As shown, the solar cell includes a transparent electrode layer 5 , an electron transport layer 4 , a perovskite light absorption layer 1 , a hole transport layer 2 and a metal electrode layer 3 . Wherein, the transparent electrode layer 5 is FTO conductive glass. FTO conductive glass is SnO doped with fluorine 2 Transparent conductive glass, referred to as FTO. SnO 2 After doping with F, it becomes a transparent conductive material with a resistivity of the order of 10 -4 Ω / cm. Preferably, the thickness of the transparent electrode layer 5 is 550 nm. The thickness of the electron transport layer 4 was 300 nm. The electron transport layer 4 is made of TiO 2 Dense layer 4A and TiO 2 The mesoporous layer 4B consists of the TiO 2 The dense layer 4A acts as a barrier layer, and the transparent electrode layer 5 and TiO 2 A S...

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Abstract

The invention provides a perovskite-based thin film solar cell. The solar cell comprises a transparent electrode layer, an electron transmission layer, a perovskite light absorption layer, a hole transmission layer and a metal electrode layer, wherein the perovskite light absorption layer is provided with a first surface and a second surface, the first surface and the second surface are provided with a plurality of convex-concave parts, and a cross section of each convex-concave part is an isosceles triangle with a top angle being 150 degrees. In the perovskite-based thin film solar cell, contact surfaces among the perovskite light absorption layer, the electron transmission layer and the hole transmission layer are of convex-concave structures, and thus, the light absorption area of the perovskite light absorption layer is expanded; since a surface of the light absorption layer is an isosceles triangle with an angle being an obtuse angle, more light rays can be reflected, so that sunlight absorption quantity is further improved, and the efficiency of power generation from light is effectively improved; and meanwhile, the transmission area of electrons and holes which are generatedby the light absorption layer is expanded, the transmission efficiency of the electrons and the holes which are generated by the light absorption layer is improved, so that the stability of a currentand a battery is improved.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a perovskite-based thin film solar cell. Background technique [0002] Solar photovoltaic power generation is an effective means to solve the increasingly serious energy and environmental problems. After decades of development, the types of batteries have evolved from traditional monocrystalline silicon batteries to various new types of solar cells, including inorganic semiconductor thin-film batteries, organic semiconductor thin-film batteries, dye-sensitized batteries, and perovskite thin-film batteries. Perovskite solar cells developed on the basis of dye-sensitized solar cells have achieved a surge in photoelectric conversion efficiency in just a few years, which has attracted widespread attention and interest from academia and industry at home and abroad. [0003] This new type of solar cell includes a transparent conductive substrate (a conductive layer is deposited on...

Claims

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Application Information

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IPC IPC(8): H01L51/42
CPCH10K30/151Y02E10/549
Inventor 李白海张博郭浩然汪芸锐
Owner 成都赛伦斯环保科技有限公司
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