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 |
|---|---|
| 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 |
|---|---|
| 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