Electric field effects on photoisomerization process of diphenylpolyenes doped in a polymer film as revealed by a field-induced change in fluorescence spectrum

Md Wahadoszamen; Takakazu Nakabayashi; Nobuhiro Ohta

doi:10.1016/j.cplett.2004.01.107

Electric field effects on photoisomerization process of diphenylpolyenes doped in a polymer film as revealed by a field-induced change in fluorescence spectrum

Md Wahadoszamen, Takakazu Nakabayashi, Nobuhiro Ohta

研究成果: Article › 査読

14 被引用数 (Scopus)

抄録

Effect of the external electric field on photoisomerization dynamics of diphenylpolyenes doped in a PMMA polymer film has been examined by using electromodulation spectroscopy in absorption and emission. A significant decrease in fluorescence intensity is found in the presence of an external electric field, suggesting that trans-to-cis isomerization of diphenylpolyenes is accelerated by an electric field in the S₁ state. The present results support the zwitter ionic model for the photoisomerization pathway of diphenylpolyenes. Photoisomerization of diphenylpolyenes is also shown to occur in a PMMA film.

本文言語	English
ページ（範囲）	124-129
ページ数	6
ジャーナル	Chemical Physics Letters
巻	387
号	1-3
DOI	https://doi.org/10.1016/j.cplett.2004.01.107
出版ステータス	Published - 2004 3月 21
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（全般）
物理化学および理論化学

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10.1016/j.cplett.2004.01.107

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引用スタイル

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abstract = "Effect of the external electric field on photoisomerization dynamics of diphenylpolyenes doped in a PMMA polymer film has been examined by using electromodulation spectroscopy in absorption and emission. A significant decrease in fluorescence intensity is found in the presence of an external electric field, suggesting that trans-to-cis isomerization of diphenylpolyenes is accelerated by an electric field in the S1 state. The present results support the zwitter ionic model for the photoisomerization pathway of diphenylpolyenes. Photoisomerization of diphenylpolyenes is also shown to occur in a PMMA film.",

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note = "Funding Information: This work was supported by Grants-in-Aid for Scientific Research (A) (2) (15205001) and for Scientific Research on Priority Area (417) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.",

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AB - Effect of the external electric field on photoisomerization dynamics of diphenylpolyenes doped in a PMMA polymer film has been examined by using electromodulation spectroscopy in absorption and emission. A significant decrease in fluorescence intensity is found in the presence of an external electric field, suggesting that trans-to-cis isomerization of diphenylpolyenes is accelerated by an electric field in the S1 state. The present results support the zwitter ionic model for the photoisomerization pathway of diphenylpolyenes. Photoisomerization of diphenylpolyenes is also shown to occur in a PMMA film.

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