✦ LIBER ✦

Stark shift in absorption spectra of Langmuir-Blodgett mixed monolayer films: New finding of a complex formation of chromophoric oxacyanine

✍ Scribed by Nobuhiro Ohta; Shigetoshi Okazaki; Iwao Yamazaki

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 584 KB
Volume: 229
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)01061-7

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✦ Synopsis

The direction and the magnitude of the change in electric dipole moment (Ap) and in polarizability associated with excitation into S, of chromophoric oxacyanine are determined at different concentrations in mixed Langmuir-Blodgett (LB) monolayer films, based on the Stark shift evaluated from the so-called electrochromism. A molecular complex of chromophoric oxacyanine whose direction of Ap is opposite to the one of dimer or J-aggregate is newly found at a high concentration in mixed LB films.