論文

2018年5月29日

Novel techniques for observing structural dynamics of photoresponsive liquid crystals

Journal of Visualized Experiments
  • Masaki Hada
  • ,
  • Shohei Saito
  • ,
  • Ryuma Sato
  • ,
  • Kiyoshi Miyata
  • ,
  • Yasuhiko Hayashi
  • ,
  • Yasuteru Shigeta
  • ,
  • Ken Onda

2018
135
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.3791/57612

© 2018 Journal of Visualized Experiments. 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.

リンク情報
DOI
https://doi.org/10.3791/57612
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/29912189
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000444372200111&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85052000111&origin=inward
ID情報
  • DOI : 10.3791/57612
  • ISSN : 1940-087X
  • PubMed ID : 29912189
  • SCOPUS ID : 85052000111
  • Web of Science ID : WOS:000444372200111

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