論文

2017年5月

The role of chemisorption for push-pull chromophores on SiO2 surfaces in non-electrically poling host-guest NLO polymers

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
  • Atsushi Sugita
  • Kazuma Ito
  • Yasuaki Sato
  • Ryota Suzuki
  • Kohei Sato
  • Tetsuo Narumi
  • Nobuyuki Mase
  • Yasushi Takano
  • Tomonori Matsushita
  • Shigeru Tasaka
  • Yoshimasa Kawata
  • 全て表示

340
開始ページ
35
終了ページ
45
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jphotochem.2017.03.007
出版者・発行元
ELSEVIER SCIENCE SA

For decades, host-guest nonlinear optical (NLO) polymers have been studied because of their versatilities. NLO polymers do not display second-order nonlinearities in as-prepared conditions because the guest chromophores are randomly oriented in the host polymers and they are centro-symmetric. We report non-electrical poling behaviors of push-pull guest chromophores that consist of a pi-conjugated phenylene vinylene bridged by an electron-accepting tricyanofuran moiety and electron-donating phenyl amine derivatives in poly (methyl methacrylate). When the phenyl amine moieties were substituted either by hydroxyl or carboxyl groups, enhanced emissions of second harmonic generations (SHG) were observed after annealing at temperatures above the glass transition point of the host polymers in the absence of external electric fields. The number of hydroxyl or carboxylic groups exerted significant influence on the polar ordering of the chromophores. The orientation behaviors of the chromophores were examined using heterodyne SHG, polarized linear absorption and polarized SHG spectroscopies. (C) 2017 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.jphotochem.2017.03.007
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000400222400006&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85014637423&origin=inward
ID情報
  • DOI : 10.1016/j.jphotochem.2017.03.007
  • ISSN : 1010-6030
  • SCOPUS ID : 85014637423
  • Web of Science ID : WOS:000400222400006

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