Optical properties of ferroelectric Langmuir-Blodgett films impregnated with dye molecules

• Autorzy: Zaitsev V. B. , Nevzorov A. V. , Plotnikov G. S.
• Konferencja: 4 International Conference on Electronic Processes in Organic Materials ICEOPOM-4, Liv, Ukraine, 3-8 June, 2002
• Języki publikacji: EN

Abstrakty

EN

Ferroelectric polymer films are very promising materials for modern microelectronics, molecular electronics and nonlinear optics. Langmuir-Blodgett films of poly vinylidene fluoride copolymer impregnated with organic dye molecules were studied experimentally. Ferroelectric films of this type undergo a phase transition at the Curie temperature. Fluorescence spectra of the structures were investigated. A strong influence of the phase transition onto the position and shape of the fluorescence spectrum was observed. A new effect of photosensitized shift of the Curie temperature was found. Besides the main ferroelectric transition, a low-temperature structural transition in super thin films was discovered for the first time by the optical method. Possible mechanisms of the effects observed are discussed.

Słowa kluczowe

EN

ferroelectric polymer film; structural transition; organic dye molecules; fluorescence; photosensitization

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Materials Science
• Rocznik: 2002
• Tom: Vol. 20, No. 3
• Strony: 57--63
• Opis fizyczny: Bibliogr. 8 poz.,

Twórcy

autor

Zaitsev V. B.

autor

Nevzorov A. V.

autor

Plotnikov G. S.

• M. V. Lomonosov Moscow State University, Physics Department