Stable and high-efficiency two-dimensional layered perovskite solar cell and preparation method therefor
A solar cell, two-dimensional layered technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as unfavorable large-scale production, low device efficiency, poor repeatability, etc., to achieve large-scale commercial applications, short-circuit The effect of current increase
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Embodiment 1
[0022] The present invention provides an efficient and stable two-dimensional layered perovskite solar cell, the structure of which is a conductive transparent substrate (ITO, PET, etc.), a hole transport layer (PEDOT: PSS, CuI, CuSCN, NiO X , RGO, GO, etc.), two-dimensional layered perovskite active layer A’ 2 A n-1 M n X 3n+1 (n=1~∞), electron transport layer (PCBM, ZnO, etc.), interface modification layer (LiF, MoO 3 , BCP, C 60 Etc.), metal electrodes (Au, Ag, Al, etc.).
[0023] The method for preparing a two-dimensional layered perovskite solar cell in air provided by the present invention has the following main operation steps:
[0024] Step 1: Dry the conductive transparent substrate processed by the cleaning process with nitrogen and make it hydrophilic.
[0025] Step 2: Depositing a hole transport layer through a solution spin coating process on the conductive transparent substrate obtained through the processing of Step 1.
[0026] Step 3: Place the device processed in Step ...
Embodiment 2
[0035] The structure of the two-dimensional layered perovskite solar cell in the embodiment of the present invention is as figure 1 As shown, they are arranged in sequence: ITO transparent conductive glass, hole transport layer (PEDOT:PSS), two-dimensional layered perovskite active layer (BA 2 MA 3 Pb 4 I X Cl 13-x ), electron transport layer (PCBM), interface modification layer (LiF), metal electrode (Al).
[0036] 1. Treatment of conductive transparent substrate of two-dimensional layered perovskite solar cell
[0037] (1) The ITO transparent conductive glass was ultrasonically treated with detergent for 20 minutes, and deionized water, acetone, and ethanol were ultrasonicated for 10 minutes respectively; (2) The cleaned ITO transparent conductive glass was treated in an ultraviolet ozone machine for 20 minutes.
[0038] 2. Preparation of hole transport layer for two-dimensional layered perovskite solar cells
[0039] (1) First filter the hole transport layer material PEDOT:PSS with ...
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