期刊
THIN SOLID FILMS
卷 737, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2021.138918
关键词
Free-standing flexible films; Conductivity; Polymer composites of poly(vinylidene fluoride)/poly(3,4 ethyelenedioxythiophene): poly(styrelenesulfonate)
类别
资金
- DST, Govt. of India [EMR/2017/0001287]
The study involved the deposition of free-standing, flexible composite films of PVDF/PEDOT:PSS, with increasing conductivity observed with higher additive concentrations. The conductivity of the composite films varied with temperature, showing semiconducting behavior, and followed the Mott Variable Range Hopping model of conduction.
Free-standing, flexible, composite films of poly(vinylidene fluoride)/poly(3,4 ethyelenedioxythiophene):poly (styrelenesulfonate) (PVDF/PEDOT:PSS) were deposited. The films were characterized using Field Emission Scanning Electron Microscopy, X-Ray Diffraction, Raman, and Fourier-transformed infrared spectroscopic studies. Enhancement in the conductivity with an increase in the concentration of the additives was observed. The electrical conductivity of the high resistive PVDF films increased to similar to 10(-3) S cm(-1) with the addition of a maximum of 1.7 mL of a 1.3 wt.% aqueous dispersion of PEDOT:PSS. An increase in the conductivity of the films with temperature was observed, indicating semiconducting nature. At room temperature, the conductivity of the composite films was found to be in the range of similar to 1.3 x 10(-4) S cm(-1) to similar to 7.3 x 10(-3) Scm(-1). The conductivity of the composite films was found to follow the Mott Variable Range Hopping model of conduction.
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