Optical sensitization at the phase transition in the ferroelectric vinylidene fluoridehyphen;trifluoroethylene copolymer

摘要

At the ferroelectric phase transition in the optically sensitized ferroelectric vinylidene fluoridehyphen;trifluoroethylene copolymers P(VDFhyphen;TrFE) the sharp change of the dye energy level is revealed. In ferroelectric P(VDFhyphen;TrFE) copolymer doped by indolynospiropyran the structural chromic effect is observed, which is characterized by the reversible change of the film color at the ferroelectric phase transition.