Photoswitching properties of photonic crystals infiltrated with polymer liquid crystals having azobenzene side chain groups with different methylene spacers

Masaki Moritsugu, Sun Nam Kim, Shoichi Kubo, Tomonari Ogata, Takamasa Nonaka, Osamu Sato, Seiji Kurihara

研究成果: Contribution to journalArticle査読

12 被引用数 (Scopus)

抄録

Photo-tunable photonic crystals were prepared by infiltrating a photoresponsive material into SiO2 inverse opal films. Azobenzene-containing polymer liquid crystals, including poly(X-(4-methoxy- 4′-oxy-azobenzene) alkyl acrylate), or PMAzXAc, where X is the number of methylene groups in the side chains (3, 6 and 11), were used as the photoresponsive material. PMAzXAc polymers were infiltrated in a spherical void of SiO2 inverse opal films to give photo-tunable photonic crystals that showed a photonic band gap. The photonic band gap of the photonic crystals could be controlled by irradiation with linearly and circularly polarized lights, leading to a reversible change in reflection from the photonic crystals. The change in the reflection band was found to be dependent on the methylene spacer length of the PMAzXAc. PMAz6Ac showed the largest shift of the reflection band (25 nm), while very little shift was observed for PMAz11Ac.

本文言語英語
ページ(範囲)30-35
ページ数6
ジャーナルReactive and Functional Polymers
71
1
DOI
出版ステータス出版済み - 1 2011

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 環境化学
  • 生化学
  • 化学工学(全般)
  • ポリマーおよびプラスチック
  • 材料化学

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