Journal
JOURNAL OF PHYSICAL CHEMISTRY A
Volume 115, Issue 42, Pages 11508-11514Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp2051307
Keywords
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Funding
- National Science Council of Taiwan, ROC [NSC95-2112-M-009-011-MY3, NSC96-2923-M-009-001-MY3, NSC98-2112-M-009-008-MY3]
- MOE at NCTU
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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.
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