Novel techniques for observing structural dynamics of photoresponsive liquid crystals

Masaki Hada, Shohei Saito, Ryuma Sato, Kiyoshi Miyata, Yasuhiko Hayashi, Yasuteru Shigeta, Ken Onda

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

We discuss in this article the experimental measurements of the molecules in liquid crystal (LC) phase using the time-resolved infrared (IR) vibrational spectroscopy and time-resolved electron diffraction. Liquid crystal phase is an important state of matter that exists between the solid and liquid phases and it is common in natural systems as well as in organic electronics. Liquid crystals are orientationally ordered but loosely packed, and therefore, the internal conformations and alignments of the molecular components of LCs can be modified by external stimuli. Although advanced time-resolved diffraction techniques have revealed picosecond-scale molecular dynamics of single crystals and polycrystals, direct observations of packing structures and ultrafast dynamics of soft materials have been hampered by blurry diffraction patterns. Here, we report time-resolved IR vibrational spectroscopy and electron diffractometry to acquire ultrafast snapshots of a columnar LC material bearing a photoactive core moiety. Differential-detection analyses of the combination of time-resolved IR vibrational spectroscopy and electron diffraction are powerful tools for characterizing structures and photoinduced dynamics of soft materials.

本文言語英語
論文番号e57612
ジャーナルJournal of Visualized Experiments
2018
135
DOI
出版ステータス出版済み - 5 29 2018

All Science Journal Classification (ASJC) codes

  • 神経科学(全般)
  • 化学工学(全般)
  • 生化学、遺伝学、分子生物学(全般)
  • 免疫学および微生物学(全般)

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