Photonic crystal comprising photo-responsive molecules and method of preparing the same
US11046887B2 · kind B2 · utility
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Key dates
| Filing date | Mar 20, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Aug 21, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are photonic crystals containing photoresponsive molecules and a method of preparing the same. More particularly, it is possible to synthesize photonic crystals containing photoresponsive molecules that induce photoalignment of azobenzene by ultraviolet irradiation using bent-shaped liquid crystal molecules containing azobenzene, which causes photo-isomerization upon ultraviolet irradiation, form a periodic structure in a visible light region using a self-assembly phenomenon occurring as temperature decreases, realize a reflection color and enable reversible pattering.
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