TY - JOUR
T1 - In situ monitoring of vapor-phase polymerization and characterization of poly(3,4-ethylenedioxythiophene) thin films
AU - Koshiba, Yasuko
AU - Hirai, Mana
AU - Horike, Shohei
AU - Morimoto, Masahiro
AU - Misaki, Masahiro
AU - Fukushima, Tastuya
AU - Ishida, Kenji
N1 - Publisher Copyright:
© MYU K.K.
PY - 2018
Y1 - 2018
N2 - Thin films of poly(3,4-ethylenedioxythiophene) (PEDOT) were fabricated via the vapor-phase polymerization (VPP) of the monomer 3,4-ethylenedioxythiophene (EDOT) with FeCl3·6H2O as the oxidant. The doping level and electrical properties of the VPP-PEDOT films were investigated by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electrical conductivity measurements. The VPP of EDOT was observed by in situ ultraviolet–visible (UV–Vis) absorption spectroscopy. The results showed that highly doped PEDOT films were formed in the initial stages of VPP, and the doping level increased as the reaction proceeded. The doping level eventually decreased because of the limited amount of the oxidant. Therefore, it was concluded that the doping level of VPP-PEDOT thin films could be changed depending on the initial amount and supply of the oxidant. The thermoelectric properties of the as-synthesized VPP-PEDOT films were also studied, with the aim of applying them as an energy harvester and/or a temperature sensor.
AB - Thin films of poly(3,4-ethylenedioxythiophene) (PEDOT) were fabricated via the vapor-phase polymerization (VPP) of the monomer 3,4-ethylenedioxythiophene (EDOT) with FeCl3·6H2O as the oxidant. The doping level and electrical properties of the VPP-PEDOT films were investigated by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electrical conductivity measurements. The VPP of EDOT was observed by in situ ultraviolet–visible (UV–Vis) absorption spectroscopy. The results showed that highly doped PEDOT films were formed in the initial stages of VPP, and the doping level increased as the reaction proceeded. The doping level eventually decreased because of the limited amount of the oxidant. Therefore, it was concluded that the doping level of VPP-PEDOT thin films could be changed depending on the initial amount and supply of the oxidant. The thermoelectric properties of the as-synthesized VPP-PEDOT films were also studied, with the aim of applying them as an energy harvester and/or a temperature sensor.
KW - In situ UV–Vis
KW - PEDOT
KW - Thermoelectric conversion
KW - Vapor-phase polymerization
UR - http://www.scopus.com/inward/record.url?scp=85059217885&partnerID=8YFLogxK
U2 - 10.18494/SAM.2018.1986
DO - 10.18494/SAM.2018.1986
M3 - 学術論文
AN - SCOPUS:85059217885
SN - 0914-4935
VL - 30
SP - 2873
EP - 2879
JO - Sensors and Materials
JF - Sensors and Materials
IS - 12
ER -