Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Slot‐Die Coated Organic UV Indicators and Filters Processed from Green Solvents

Slot‐Die Coated Organic UV Indicators and Filters Processed from Green Solvents This work reports the use of the slot‐die (SD) coating solution processing method to fabricate large‐area organic thin films composed of photochromic dyes as UV indicators and UV light absorbers as UV filters on polyethylene terephthalate flexible substrates. This is the first demonstration of large‐area SD coated organic photochromic films and UV filters. Impressively, highly uniform photochromic films comprised of small molecules are formed in air, from green solvents (i.e., alcohols) and show rapid color changes upon external stimuli (i.e., light and heat). The UV filters processed under the same conditions and comprised of only small molecules show highly transparent films in the visible and near‐IR range with T% > 97%@550 nm and excellent UV blocking ability. The work highlights the utility of roll‐to‐roll compatible SD‐coating methods to make prototype organic devices in an academic laboratory setting and opens the door for additive manufacturing of simple and low‐cost UV active films for healthcare and electronic applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Sustainable Systems Wiley

Slot‐Die Coated Organic UV Indicators and Filters Processed from Green Solvents

Loading next page...
 
/lp/wiley/slot-die-coated-organic-uv-indicators-and-filters-processed-from-green-8q0pXgN7TE

References (40)

Publisher
Wiley
Copyright
© 2022 Wiley‐VCH GmbH
eISSN
2366-7486
DOI
10.1002/adsu.202100055
Publisher site
See Article on Publisher Site

Abstract

This work reports the use of the slot‐die (SD) coating solution processing method to fabricate large‐area organic thin films composed of photochromic dyes as UV indicators and UV light absorbers as UV filters on polyethylene terephthalate flexible substrates. This is the first demonstration of large‐area SD coated organic photochromic films and UV filters. Impressively, highly uniform photochromic films comprised of small molecules are formed in air, from green solvents (i.e., alcohols) and show rapid color changes upon external stimuli (i.e., light and heat). The UV filters processed under the same conditions and comprised of only small molecules show highly transparent films in the visible and near‐IR range with T% > 97%@550 nm and excellent UV blocking ability. The work highlights the utility of roll‐to‐roll compatible SD‐coating methods to make prototype organic devices in an academic laboratory setting and opens the door for additive manufacturing of simple and low‐cost UV active films for healthcare and electronic applications.

Journal

Advanced Sustainable SystemsWiley

Published: Feb 1, 2022

Keywords: additive manufacturing; green processing; organic UV filters; photochromic UV indicators; slot‐die coating; UV dosimeters

There are no references for this article.