Title: Environment-Dependent Ultrafast Photoisomerization Dynamics in Azo Dye
Authors: Hsu, Chun-Chih
Wang, Yu-Ting
Yabushita, Atsushi
Luo, Chih-Wei
Hsiao, Yi-Nan
Lin, Shivan-Huei
Kobayashi, Takayoshi
電子物理學系
Department of Electrophysics
Issue Date: 27-Oct-2011
Abstract: Azoaromatic dyes have been extensively investigated over the past decade due to their potential use in a variety of optical devices that exploit their ultrafast photoisomerization processes. Among the azoaromatic dyes, Disperse Red 19 is a commercially available azobenzene nonlinear optical chromophore with a relatively high ground-state dipole moment. In the present study, we used ultrafast time-resolved spectroscopy to clarify the dynamics of a push-pull substituted azobenzene dye. Solution and film samples exhibited different ultrafast dynamics, indicating that the molecular environment affects the photoisomerization dynamics of the dye.
URI: http://dx.doi.org/10.1021/jp2051307
http://hdl.handle.net/11536/14719
ISSN: 1089-5639
DOI: 10.1021/jp2051307
Journal: JOURNAL OF PHYSICAL CHEMISTRY A
Volume: 115
Issue: 42
Begin Page: 11508
End Page: 11514
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