期刊
DYES AND PIGMENTS
卷 84, 期 1, 页码 102-107出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2009.07.002
关键词
Photo-responsive amorphous molecular material; Photoinduced surface relief grating formation; Azobenzene; trans-cis Photoisomerization; Glass-transition temperature
资金
- Grants-in-Aid for Scientific Research [21550171] Funding Source: KAKEN
Novel azobenzene-based photo-responsive amorphous molecular materials, 4-[bis(9,9-dimethylfluoren2-yl)amino]-4'-cyanoazobenzene and 4-[bis(9,9-dimethylfluoren-2-yl)amino]-4'-nitroazobenzene, have been synthesized and the formation of surface relief grating on their amorphous films has been investigated. It was found that a relatively large surface relief grating could be inscribed on both amorphous films upon interference exposure to the writing laser beams. The modulation depth of the surface relief grating inscribed on the amorphous film of the cyano-substituted material was found to be larger than that inscribed on the film of the nitro-substituted one and seemed to be comparable to that inscribed on the amorphous film of the parent material, 4-[bis(9,9-dimethylfluoren-2-yl)amino]azobenzene. These results were discussed from the viewpoint of their trans-cis photoisomerizations as amorphous films and glass-transition temperatures. (C) 2009 Elsevier Ltd. All rights reserved.
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