All solid state perovskite microcrystalline silicon composite solar battery and preparation method thereof

Abstract

The invention discloses an all solid state perovskite microcrystalline silicon composite solar battery and a preparation method thereof, and relates to a semiconductor device specially suitable for converting light energy into electric energy. The all solid state perovskite microcrystalline silicon composite solar battery is composed of a transparent conducting substrate, an oxide semiconductor film layer, a perovskite light absorption layer, a microcrystalline silicon hole transport layer and a back electrode. The preparation method of the all solid state perovskite microcrystalline silicon composite solar battery includes: preparing the perovskite light absorption layer on the transparent conducting substrate coated with an oxide semiconductor film; depositing the microcrystalline silicon hole transport layer on the perovskite light absorption layer so as to form an all solid state perovskite microcrystalline silicon composite film; compositing perovskite light absorption layer material and P type microcrystalline silicon material in matching mode. The all solid state perovskite microcrystalline silicon composite solar battery prepared from the above preparation method simultaneously overcomes the defects that an existing perovskite solar battery is poor in stability and expensive in cost due to the fact that organic hole transport material is used on the existing perovskite solar battery, and the defects that preparation costs are high and photoelectric conversion efficiency is low, caused by low preparation speed of a microcrystalline silicon thin film solar battery.

Description

technical field [0001] The technical solution of the invention relates to a semiconductor device specially suitable for converting light energy into electric energy, specifically an all-solid-state perovskite microcrystalline silicon composite solar cell and a preparation method thereof. Background technique [0002] In the case of decreasing fossil fuels, solar energy, as an emerging renewable energy source, has become an important part of energy used by human beings and has been continuously developed. Solar power generation is a major form of solar energy utilization. Low-cost, high-efficiency and long-term stable solar cells are the basis for large-scale photoelectric conversion using solar energy. [0003] A type of solar cell that is currently developing rapidly is the perovskite solar cell, which is composed of a conductive substrate, an electron transport material, a perovskite light absorbing layer, an organic hole transport material, and a metal electrode. The per...

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an all-solid-state perovskite microcrystalline silicon composite solar cell and a preparation method thereof, in which the perovskite light-absorbing layer material and the P-type microcrystalline silicon material are matched and compounded to form an all-solid-state perovskite microcrystalline silicon composite solar cell. The solid-state perovskite microcrystalline silicon composite thin-film solar cell also overcomes the shortcomings of poor stability and high price of existing perovskite solar cells due to the use of organic hole transport materials, as well as the low production rate of microcrystalline silicon thin-film solar cells The disadvantages of high preparation cost and low photoelectric conversion efficiency

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