Flexible composite laminated solar cell and preparation method thereof

Abstract

The invention discloses a flexible composite laminated solar cell and a preparation method thereof. The composite laminated solar cell sequentially comprises a high-wear-resistance light-transmittinglayer, a charge transmission layer, a perovskite cell layer, a hole transmission layer, a gallium arsenide cell layer, a metal electrode layer and a flexible packaging backboard layer from a light receiving surface to a backlight surface. The structure is a thin-layer flexible structure and can be bent, curled and folded; according to the invention, the problems of gallium arsenide energy loss andlattice mismatch are solved, the energy gap is large, the overall conversion efficiency is improved, and the service life is prolonged. According to the invention, the charge transport layer is prepared by adopting a spraying method, the hole transmission layer is prepared by adopting a spray pyrolysis method, the metal electrode layer is prepared by adopting a coating method, and the flexible packaging backboard layer is prepared by adopting a thermal bonding method; the preparation difficulty is reduced while the thin layer preparation requirement is met, industrial popularization is facilitated, layer-to-layer combination is facilitated through selection of the preparation method, and then the conversion efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of solar energy, in particular to a flexible composite stacked solar cell and a preparation method thereof. Background technique [0002] Under the current situation of serious pollution and gradual depletion of fossil energy, renewable energy has attracted more and more attention from various countries, especially the application of solar energy. In addition to the currently widely used crystalline silicon cells, solar cells, perovskite cells and gallium arsenide cells have received a lot of attention, and are considered to be one of the main directions for the development of solar cell technology in the future. Therefore, they have been approved by most countries in the world. Pay attention to. [0003] In 1839, the German chemist Gustav Roth discovered the first perovskite, the natural mineral calcium titanate (CaTiO), during his expedition to the Ural Mountains in Russia. The crystalline materials of t...

AI Technical Summary

Problems solved by technology

At present, there is a method of combining gallium arsenide and perovskite cells to form a heterojunction cell, but the main disadvantages of the prior art method are as follows: 1) the size of the cell composition is too large, it is not flexible, and its application scenarios are narrow; 2) Due to various factors such as preparation methods and material selection, gallium arsenide and perovskite cells have not been effectively combined, and the conversion efficiency has not been greatly improved.

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