Effect of dye-doping on photo-induced pyroelectric response in thin films of vinylidene fluoride/trifluorethylene copolymers

Author

Date, Munehiro ; Furukawa, Tako ; Katashima, Akira ; Uematsu, Yoshiko ; Yamaguchi, Takeo

Author_Institution

Inst. of Phys. & Chem. Res., Wako, Japan

fYear

1991

fDate

25-27 Sep 1991

Firstpage

460

Lastpage

465

Abstract

The time dependence of the current response induced by a chopped laser beam was measured for dye-doped vinylidene fluoride/trifluoroethylene copolymers spin-coated on an ITO coated glass substrate. In addition to conventional pyroelectric response, an anomalous current was observed in the high dye concentration region. This effect was explained by the photoconductivity of dye molecules densely dispersed in the noncrystalline regions of the polymer matrix

Keywords

electrets; electrical conductivity of amorphous semiconductors and insulators; photoconductivity; polymer films; pyroelectricity; ITO coated glass substrate; PVDF-TrFE; chopped laser beam; current response; dye-doping; electret; noncrystalline regions; photo-induced pyroelectric response; photoconductivity; polymer matrix; thin films; vinylidene fluoride/trifluorethylene copolymers; Absorption; Chemical lasers; Current measurement; Ferroelectric materials; Glass; Laser beams; Laser theory; Pyroelectricity; Time measurement; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)

Conference_Location

Berlin

Print_ISBN

0-7803-0112-9

Type

conf

DOI

10.1109/ISE.1991.167256

Filename

167256