✦ LIBER ✦

External electric field effects on fluorescence of chromophoric thiacyanine in Langmuir-Blodgett mixed monolayer films

✍ Scribed by Nobuhiro Ohta; Tatsuya Nomura; Shigetoshi Okazaki; Iwao Yamazaki

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 565 KB
Volume: 241
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00622-b

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✦ Synopsis

Dynamics following photoexcitation into S 1 of chromophoric thiacyanine (TC) in mixed Langmuir-Blodgett films is affected by an applied electric field, and fluorescence quantum yield of TC is changed by an external electric field. The field dependence of fluorescence is more enhanced in an associated complex than in a monomer.

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External electric field effects on absorption and fluorescence spectra of indocarbocyanine in Langmuir-Blodgett films

✍ Nobuhiro Ohta; Yoshiaki Ogata; Shigetoshi Okazaki; Iwao Yamazaki 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 523 KB

The change in electric dipole moment and molecular polarizability of indocarbocyanine (ICC) in Langmuir-Blodgett films upon excitation into Sj is estimated to be 5.3 × 10 -32 C m (0.016 D) and 3.5 x 10 -40 J-~ C 2 m 2 (3.1 in units of 4'rre o A~). respectively, based on the electroabsorption spectra