Hot pen and laser writable photonic polymer films
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
Original language | English |
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Title of host publication | Emerging Liquid Crystal Technologies XI |
Publisher | SPIE |
Volume | 9769 |
ISBN (Electronic) | 9781510600041 |
DOIs | |
Publication status | Published - 2016 |
Externally published | Yes |
Publication type | A4 Article in a conference publication |
Event | Emerging Liquid Crystal Technologies XI - San Francisco, United States Duration: 16 Feb 2016 → 17 Feb 2016 |
Conference
Conference | Emerging Liquid Crystal Technologies XI |
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Country | United States |
City | San Francisco |
Period | 16/02/16 → 17/02/16 |
Abstract
An orange-reflecting photonic polymer film has been fabricated based on a hydrogen-bonded cholesteric liquid crystalline (CLC) polymer consisting of non-reactive (R)-(+)-3-methyladipic acid as the chiral dopant. This polymer film can be patterned easily by evaporating the chiral dopant at specific locations with a hot pen or a laser beam. Removal of chiral dopant leads to a decrease in the helical pitch at the heat treated areas leading to a change in color from orange to green revealing a high contrast pattern. The photonic patterns are irreversible and stable at ambient conditions. This makes such a CLC polymer film interesting as writable photonic paper.
ASJC Scopus subject areas
Keywords
- Cholesteric liquid crystals, laser writing, patterned surface, photonic paper, thermal writing