Method of making a perovskite layer at high speed
Abstract
A method of making a perovskite layer includes providing a flexible substrate; providing a perovskite solution comprising an initial amount of solvent and perovskite precursor materials and a total solids concentration between 30 percent and 70 percent by weight of its saturation concentration; depositing the perovskite solution on the flexible 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 percent of its saturation concentration with a first drying step; and removing a second portion of the solvent from the deposited perovskite solution with a second drying step having a higher rate of solvent evaporation that causes saturation and a conversion reaction in the deposited perovskite solution resulting in perovskite crystal formation or formation of a perovskite intermediate phase, wherein the first drying step dwell time is at least 5 times longer than the second drying step dwell time.
- Inventors:
- Issue Date:
- Research Org.:
- Energy Materials Corp., Rochester, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1840400
- Patent Number(s):
- 11108007
- Application Number:
- 16/426,191
- Assignee:
- Energy Materials Corporation (Rochester, NY)
- Patent Classifications (CPCs):
-
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- DOE Contract Number:
- EE0008128
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/30/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Christensen, Scott Kenneth, Li, Qi, Tombs, Thomas Nathaniel, and DeLuca, Stephan J. Method of making a perovskite layer at high speed. United States: N. p., 2021.
Web.
Christensen, Scott Kenneth, Li, Qi, Tombs, Thomas Nathaniel, & DeLuca, Stephan J. Method of making a perovskite layer at high speed. United States.
Christensen, Scott Kenneth, Li, Qi, Tombs, Thomas Nathaniel, and DeLuca, Stephan J. Tue .
"Method of making a perovskite layer at high speed". United States. https://www.osti.gov/servlets/purl/1840400.
@article{osti_1840400,
title = {Method of making a perovskite layer at high speed},
author = {Christensen, Scott Kenneth and Li, Qi and Tombs, Thomas Nathaniel and DeLuca, Stephan J.},
abstractNote = {A method of making a perovskite layer includes providing a flexible substrate; providing a perovskite solution comprising an initial amount of solvent and perovskite precursor materials and a total solids concentration between 30 percent and 70 percent by weight of its saturation concentration; depositing the perovskite solution on the flexible 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 percent of its saturation concentration with a first drying step; and removing a second portion of the solvent from the deposited perovskite solution with a second drying step having a higher rate of solvent evaporation that causes saturation and a conversion reaction in the deposited perovskite solution resulting in perovskite crystal formation or formation of a perovskite intermediate phase, wherein the first drying step dwell time is at least 5 times longer than the second drying step dwell time.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {8}
}
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