Flexible perovskite solar cell and preparation technology thereof

Abstract

The invention discloses a flexible perovskite solar cell and a preparation technology thereof. The flexible perovskite solar cell comprises a flexible transparent substrate, a transparent electrode, a hole transmission layer, a light absorption layer, an electron transmission layer and a top electrode, which are sequentially stacked, wherein the hole transmission layer is made of a hole transmission material; the electron transmission layer is made of an electron transmission material; and the light absorption layer is made of a photovoltaic material with a perovskite structure. The preparation technology comprises the steps as follows: the transparent electrode, the hole transmission layer, the light absorption layer, the electron transmission layer and the top electrode are sequentially prepared on the flexible transparent substrate; and the hole transmission layer, the light absorption layer and the electron transmission layer are prepared by a solution method at a low temperature. The flexible perovskite solar cell disclosed by the invention is light in weight, bendable and good in industrial prospect, and can be widely applied to a cambered environment; and the preparation technology is simple in process, low in cost and high in cell preparation technology.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and relates to a perovskite solar cell (PSC, Perovskite Solar Cells) and a preparation process thereof, in particular to a flexible perovskite solar cell and a preparation process thereof. Background technique [0002] With the rapid development of the field of near-space detection, airships, drones and other aircraft have been widely used. Taking airships as an example, lightweight and high-efficiency solar cells have attracted widespread attention as an ideal energy source for airships. Solar cells are usually laid on the skin surface of airships, and ordinary rigid solar cells cannot be installed on airships because their surfaces are usually curved. Therefore, airships, drones, etc. have an urgent need for flexible solar cells that are lightweight, bendable, and have high specific power. [0003] Flexible solar cells are solar cells prepared on flexible plastic or flexible glass substrat...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, especially to provide a light-weight, bendable, widely used curved surface environment, industrial Flexible perovskite solar cells with good prospects for development, and also provide a hole transport layer, perovskite material light absorption layer and electron transport layer can be prepared by solution method in air environment, and the preparation temperature is lower than 150 ℃, which is suitable for The preparation process of flexible perovskite solar cells without damage to the flexible conductive substrate, which is conducive to simplifying the process flow, reducing costs, and improving cell preparation efficiency

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