کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1440625 1509371 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impedance spectroscopy study of conducting polymer blends of PEDOT:PSS and PVA
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Impedance spectroscopy study of conducting polymer blends of PEDOT:PSS and PVA
چکیده انگلیسی

Blends of the conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) with polyvinyl alcohol (PVA) have many potential applications including microelectromechanical systems (MEMS) and other electronic devices. Specifically, PEDOT:PSS acts as the electrical conductor, while the PVA provides ductility and other mechanical enhancements. Concentrations of PEDOT:PSS at 20, 30 and 40 weight percentage (wt%) in PEDOT:PSS/PVA mixtures have been found to provide optimal mechanical and electrical properties. PEDOT:PSS/PVA films are prepared using a casting method and electrochemical impedance spectroscopy is used to investigate the electrical properties. The extrapolated DC conductivities are obtained in a dry nitrogen environment at room temperature and determined to be 3.917 × 10−8, 2.383 × 10−7 and 8.369 × 10−6 S/cm, respectively, for 20, 30 and 40 wt%. In addition, as a means to better explore the conduction as a function of temperature, impedance spectroscopy measurements for the 30 wt% PEDOT:PSS are determined over a range of temperatures from 24.5 °C to 79.5 °C. The corresponding extrapolated DC conductivities are found to increase by a factor of about four with increase in temperature from 4.617 × 10−8 S/cm at 24.5 °C to 2.083 × 10−7 S/cm at 79.5 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 206, August 2015, Pages 106–114
نویسندگان
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