Title :
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
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;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167256
