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A kind of organic solar cell and its preparation method based on centrifugal assisted layering of photoactive layer by spin coating process

A solar cell and photoactive layer technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problems of poor phase separation in the photoactive layer, poor contact of the buffer layer, etc. Effects of acceptor phase separation, improved charge transport capability, and reduced contact resistance

Active Publication Date: 2021-11-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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  • A kind of organic solar cell and its preparation method based on centrifugal assisted layering of photoactive layer by spin coating process
  • A kind of organic solar cell and its preparation method based on centrifugal assisted layering of photoactive layer by spin coating process
  • A kind of organic solar cell and its preparation method based on centrifugal assisted layering of photoactive layer by spin coating process

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Embodiment 1

[0041] A kind of preparation method of the organic solar cell of centrifugal auxiliary photoactive layer 4 delaminations based on spin-coating process, comprises the following steps:

[0042] S1: Clean the substrate composed of the transparent substrate 1 and the transparent conductive anode ITO with a surface roughness less than 1 nm, and dry it with nitrogen after cleaning;

[0043] S2: Spin-coat PEDOT:PSS on the surface of the transparent conductive cathode ITO, the spin-coating speed is 3000rpm, the time is 60s, prepare the anode buffer layer, and bake the formed film at a low temperature, the temperature of the low-temperature baking is 100 ℃, the time is 20min, and the thickness of the anode buffer layer is 30nm;

[0044] S3: Prepare PBDB-T: ITIC photoactive layer 4 by spin-coating process on the anode buffer layer, PBDB-T: ITIC photoactive layer 4 is composed of electron donor material PBDB-T and acceptor non-fullerene material ITIC The solution is prepared, the mass p...

Embodiment 2

[0051] A kind of preparation method of the organic solar cell of centrifugal auxiliary photoactive layer 4 delaminations based on spin-coating process, comprises the following steps:

[0052] S1: Clean the substrate composed of the transparent substrate 1 and the transparent conductive anode ITO with a surface roughness less than 1 nm, and dry it with nitrogen after cleaning;

[0053] S2: Spin-coat PEDOT:PSS on the surface of the transparent conductive cathode ITO, the spin-coating speed is 3000rpm, the time is 60s, prepare the anode buffer layer, and bake the formed film at a low temperature, the temperature of the low-temperature baking is 100 ℃, the time is 20min, and the thickness of the anode buffer layer is 30nm;

[0054] S3: Prepare PBDB-T: ITIC photoactive layer 4 by spin-coating process on the anode buffer layer, PBDB-T: ITIC photoactive layer 4 is composed of electron donor material PBDB-T and acceptor non-fullerene material ITIC The solution is prepared, the mass p...

Embodiment 3

[0064] A kind of preparation method of the organic solar cell of centrifugal auxiliary photoactive layer 4 delaminations based on spin-coating process, comprises the following steps:

[0065] S1: Clean the substrate composed of the transparent substrate 1 and the transparent conductive anode ITO with a surface roughness less than 1 nm, and dry it with nitrogen after cleaning;

[0066] S2: Spin-coat PEDOT:PSS on the surface of the transparent conductive cathode ITO, the spin-coating speed is 3000rpm, the time is 60s, prepare the anode buffer layer, and bake the formed film at a low temperature, the temperature of the low-temperature baking is 100 ℃, the time is 20min, and the thickness of the anode buffer layer is 30nm;

[0067] S3: Prepare PBDB-T: ITIC photoactive layer 4 by spin-coating process on the anode buffer layer, PBDB-T: ITIC photoactive layer 4 is composed of electron donor material PBDB-T and acceptor non-fullerene material ITIC The solution is prepared, the mass p...

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Abstract

The invention relates to the field of organic semiconductor thin-film solar cells, and specifically discloses an organic solar cell based on a spin-coating process for delamination of a centrifugally assisted photoactive layer and a preparation method thereof. The preparation method includes the following steps: S1: transparent substrate and ITO The substrate composed of the transparent conductive cathode layer is cleaned, and dried with nitrogen gas after cleaning; S2: Spin coating, printing or spraying PEDOT:PSS precursor solution on the surface of the ITO transparent conductive cathode layer to prepare the anode buffer layer, and the formed Baking the film at low temperature; S3: Preparing PBDB‑T: ITIC photoactive layer on the anode buffer layer by spin-coating process; S4: Pasting the spin-coated PBDB‑T: ITIC photoactive layer substrate to the vertical sidewall Spinning and centrifuging on the surface; S5: Thermal annealing of the PBDB‑T: ITIC photoactive layer in a glove box; S6: In a vacuum of 3*10 3 Under the condition of Pa, LiF was evaporated on the surface of PBDB‑T: ITIC photoactive layer to prepare a cathode buffer layer; S7: a metal cathode layer was evaporated on the cathode buffer layer. Finally, the purpose of improving various performance parameters of the organic solar cell is achieved.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48H01L51/42
CPCH10K71/00H10K71/12H10K30/00Y02E10/549
Inventor 于军胜张大勇杨根杰王子君
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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