Centrifugal assistant light active layer stratified organic solar cell based on spinning-coating process, and preparation method thereof

Abstract

The invention relates to the field of the organic semiconductor thin-film solar cell, and specifically discloses a centrifugal assistant light active layer stratified organic solar cell based on spinning-coating process, and a preparation method thereof. The preparation method comprises the following steps: S1, cleaning a baseplate composed of a transparent substrate and an ITO transparent conductive cathode layer, and blow-drying by using nitrogen after cleaning; S2, spinning-coating, printing or spraying PEDOT: PSS precursor solution on the ITO transparent conductive cathode layer surface, and preparing an anode buffer layer, and performing low-temperature baking on the formed thin-film; S3, preparing a PBDB-ITIC light active layer on the anode buffer layer by adopting the spinning-coating process; S4, adhering the baseplate spun-coated with the PBDB-T:ITIC light active layer to a vertical sidewall to perform rotary centrifuging; S5, performing thermal annealing treatment on the PBDB-T:ITIC light active layer in a glovebox; S6, evaporating LiF on the PBDB-T:ITIC light active layer surface under the condition that the vacuum degree is 3*10<3>Pa, and preparing a cathode buffer layer; and S7, evaporating a metal cathode layer on the cathode buffer layer. And an aim of improving various performance parameters of the organic solar cell is finally improved.

Description

technical field [0001] The invention belongs to the technical field of organic semiconductor thin-film solar cells, and specifically relates to an organic solar cell based on a spin-coating process and a delamination of a photoactive layer assisted by centrifugal force and a preparation method thereof. Background technique [0002] With the rapid development of the world economy and the rapid development of science and technology, people's demand for energy is increasing day by day. New energy is considered to be a key project in the 21st century. In this context, solar energy, as a renewable green energy, has attracted extensive attention from researchers due to its huge reserves, wide distribution, green and harmless characteristics. As a means of effectively developing and utilizing solar energy that can directly convert sunlight energy into electrical energy, solar cells have attracted the attention of researchers. According to the different properties of the photoacti...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of poor phase separation in the photoactive layer of the above-mentioned non-fullerene system and poor contact with the buffer layer, the purpose of the present invention is to provide an organic solar cell based on a spin-coating process for delamination of the centrifugally assisted photoactive layer and its preparation method

Images