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Electron transport layer coating ink as well as preparation method and application thereof

An electron transport layer and electron transport material technology, applied in the field of electron transport layer coating ink and its preparation, to achieve the effects of good electron transport performance, simplifying the device preparation process and avoiding damage

Pending Publication Date: 2021-01-29
WUXI UTMOST LIGHT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of inorganic metal oxide transport layer is mostly prepared on the bottom layer of perovskite devices. How to prepare the top inorganic metal oxide transport layer on the perovskite film is a current technical difficulty.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Electron transport layer coating ink includes: Fullerene C 60 : 1.5mg / mL; SnO 2 Nanoparticles: 1.5mg / mL; methylamine hydroiodide: 0.1mg / mL; the solvent is a mixed solvent of chlorobenzene and chloroform with a volume ratio of 1:1.

[0057] Fabrication of trans perovskite solar cells using the above electron transport layer coating ink:

[0058] (1) Select a conductive glass substrate with a suitable size, and perform ultrasonic cleaning with industrial cleaning agent, deionized water, and ethanol in sequence until the surface wettability is good, and a uniform water film can be formed. After drying with compressed air, UV ozone treatment for 15min.

[0059] (2) NiOx hole transport layer was prepared by magnetron sputtering process.

[0060] (3) Prepare the precursor solution according to the ratio of the perovskite components, and weigh CsI, FAI, and PbI according to the required stoichiometric ratio 2 , the solvent is a mixed solution with a volume ratio of DMF:DMS...

Embodiment 2

[0064] Electron transport layer coating ink includes: Fullerene C 70 : 5mg / mL; TiO 2 Nanoparticles: 3mg / mL; Methylamine Hydroiodide: 1mg / mL; The solvent is a mixed solvent of chlorobenzene and isopropanol with a volume ratio of 1:1.

[0065] Fabrication of trans perovskite solar cells using the above electron transport layer coating ink:

[0066] (1) Select a conductive glass substrate with a suitable size, and perform ultrasonic cleaning with industrial cleaning agent, deionized water, and ethanol in sequence until the surface wettability is good, and a uniform water film can be formed. After drying with compressed air, UV ozone treatment for 15min.

[0067] (2) NiOx hole transport layer was prepared by magnetron sputtering process.

[0068] (3) Prepare the precursor solution according to the ratio of the perovskite components, and weigh CsI, MAI, and PbI according to the required stoichiometric ratio 2 , the solvent is a mixed solution with a volume ratio of DMF:DMSO=20:...

Embodiment 3

[0072] Electron transport layer coating ink includes: hydroxylated fullerene C 60 : 20mg / mL; SnO 2 Nanoparticles: 10mg / mL; Methylamine Hydroiodide: 5mg / mL; The solvent is a mixed solvent of chlorobenzene and acetonitrile with a volume ratio of 1:1.

[0073] Fabrication of trans perovskite solar cells using the above electron transport layer coating ink:

[0074] (1) Select a conductive glass substrate with a suitable size, and perform ultrasonic cleaning with industrial cleaning agent, deionized water, and ethanol in sequence until the surface wettability is good, and a uniform water film can be formed. After drying with compressed air, UV ozone treatment for 15min.

[0075] (2) NiOx hole transport layer was prepared by electrochemical deposition process.

[0076] (3) Prepare the precursor solution according to the ratio of the perovskite components, and weigh CsI, MAI, and PbI according to the required stoichiometric ratio 2 , the solvent is a mixed solution with a volume...

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PUM

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Abstract

The invention discloses electron transport layer coating ink as well as a preparation method and application thereof. The electron transport layer coating ink comprises an electron transport material,a halide additive and a solvent, wherein the electron transport material comprises a fullerene material and a metal oxide nano material. The electron transport layer coating ink is good in electron transport performance, high in stability and low in cost, and can realize large-area coating on the surface of a perovskite thin film in a trans-perovskite solar cell.

Description

technical field [0001] The invention relates to the field of perovskite solar cells, in particular, the invention relates to an electron transport layer coating ink and a preparation method and application thereof. Background technique [0002] Perovskite solar cells are new types of solar cells that use perovskite-type organic metal halide semiconductors as light-absorbing materials. In the past decade, the research of perovskite cells has developed rapidly, and the photoelectric conversion efficiency of the cells has reached 25.5%. Compared with crystalline silicon cells, perovskite cells have a higher upper limit of efficiency and lower manufacturing costs, and are a new generation of solar cells with more development prospects. [0003] The device structure of perovskite cells can be divided into formal structure and trans structure. The formal structure consists of conductive glass, electron transport layer, perovskite film, hole transport layer and back electrode fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03H01L51/42H01L51/48
CPCC09D11/03H10K71/12H10K30/15Y02E10/549
Inventor 邵君于振瑞
Owner WUXI UTMOST LIGHT TECH CO LTD
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