4.7 Article

Photomechanical bending of 4-aminoazobenzene crystals

Journal

DYES AND PIGMENTS
Volume 92, Issue 2, Pages 798-801

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2011.05.003

Keywords

Azobenzene; Photoisomerization; Photomechanical bending; Mechanical motion; Single crystal; Crystal structure

Funding

  1. Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan [471, 21021020]
  2. Grants-in-Aid for Scientific Research [22350063, 23655129, 21021020] Funding Source: KAKEN

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Upon photoirradiation at 365 nm, platelike microcrystals of trans-4-aminoazobenzene quickly bend away from the light source, returning to their initial linear shape when irradiation was terminated. However, relative to the observations upon cessation of 365 nm irradiation, the bent crystals recovered their initial shape more rapidly when exposed to visible light (530 nm) irradiation. (C) 2011 Elsevier Ltd. All rights reserved.

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