Method for manufacturing perovskite layer at high speed

A perovskite, multi-layer substrate technology, used in the manufacture of perovskite layers and perovskite photovoltaic devices, the composition of perovskite solutions, the field of high-speed manufacturing of photovoltaic devices, to achieve low equipment cost, convenient handling and storage temperature, low cost effect

Pending Publication Date: 2022-05-17
에너지머티리얼즈코퍼레이션
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Forming uniform and defect-free perovskite layers on flexible multilayer substrates to fabricate PSCs in a cost-effective manner remains a great challenge due to the complexity of depositing and drying perovskite solutions using high-speed production equipment.

Method used

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  • Method for manufacturing perovskite layer at high speed
  • Method for manufacturing perovskite layer at high speed
  • Method for manufacturing perovskite layer at high speed

Examples

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Embodiment 1

[0057] A flexible multilayer substrate with a width of 25.4 cm was conveyed through an R2R deposition and drying equipment manufactured by Polytype Converting for 3 trials at constant speeds of 30, 32 and 35 meters per minute. The Polytype Converting machine was modified as described below to implement the multi-step drying method of the present disclosure. The R2R deposition and drying equipment has an in-line arrangement for conveying the continuous flexible substrate from the unwind roll through the following sections: surface treatment equipment, deposition and first drying step section, second drying step fast drying section and long duration heating section. Flexible multilayer substrates with perovskite layers are wound on rewind rolls. The flexible multilayer substrate has a polyester film as a flexible support, a thin layer of indium tin oxide as a first conductive layer, and poly(triarylamine) as a first carrier transport layer. The surface treatment equipment is a ...

Embodiment 2

[0060] A flexible multilayer substrate with a width of 15.2 cm was conveyed through a R2R deposition and drying apparatus manufactured by Eastman Kodak Co. at constant speeds of 11.9, 12.2, 12.5, 12.8, 13.1, and 13.4 meters per minute for six trials. The R2R machine was modified as described below to implement the multi-step drying method of the present disclosure. The R2R deposition and drying apparatus has a tandem arrangement for conveying a continuous flexible substrate from an unwind roll through the following sections: a deposition and first drying step section, a second drying step taking place in a fast drying section, and a long duration heating section. Flexible multilayer substrates with perovskite layers are wound on rewind rolls. The flexible multilayer substrate has a polyester film as a flexible support, a thin layer of indium tin oxide as a first conductive layer, and poly(triarylamine) as a first carrier transport layer. In the deposition part, a 4.5 μm thick...

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Abstract

The invention discloses a method for preparing a perovskite layer. The method comprises the following steps: providing a flexible substrate; providing a perovskite solution comprising an initial amount of a solvent and a perovskite precursor material and having a total solids concentration of between 30% and 70% by weight of its saturation concentration; depositing the perovskite solution on a substrate; removing a first portion of the solvent from the deposited perovskite solution and increasing the total solids concentration of the perovskite solution to at least 75% of its saturation concentration by a first drying step; and removing a second portion of the solvent from the deposited perovskite solution by a second drying step having a higher solvent evaporation rate, which results in saturation and conversion reactions in the deposited perovskite solution, resulting in perovskite crystal formation or perovskite mesophase formation, wherein the residence time of the first drying step is at least 5 times longer than the residence time of the second drying step. A continuous in-line method for high-speed production of photovoltaic devices and a perovskite solution for high-speed fabrication of uniform perovskite layers to enable low-cost production of efficient perovskite devices are also described.

Description

[0001] This invention was made with government support under Grant No. DE-EE0008128 awarded by the Office of Solar Energy Technologies, Department of Energy. The government has certain rights in this invention. technical field [0002] The present disclosure relates to high-speed deposition of perovskite solutions on flexible substrates, drying of solutions, and more particularly, novel methods of fabricating perovskite layers and perovskite photovoltaic devices. The present disclosure further relates to methods of high-speed fabrication of photovoltaic devices on substrates using perovskite solutions. The present disclosure further relates to the composition of perovskite solutions for high-speed fabrication of perovskite layers and perovskite photovoltaic devices. Background technique [0003] Rapid improvements since first reported in 2009 have made halide perovskite solar cells (PSCs) a promising technology for converting light into electricity as part of optoelectronic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/42H01L51/46
CPCH10K71/15H10K71/40H10K30/00H10K77/111C07F7/24H10K71/421H10K85/50H10K30/40H10K71/00Y02E10/549C07F13/00H10K71/135
Inventor S·K·克里斯滕森李齐T·N·图姆斯S·J·德卢卡
Owner 에너지머티리얼즈코퍼레이션
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