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Effects of polymerization medium on electrical conductivity and optical properties of organic semiconductor‐based polypyrrole
Author(s) -
Yakuphanoglu Fahrettin,
Aydin Mehmet Enver
Publication year - 2007
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20766
Subject(s) - materials science , polypyrrole , polymerization , electrical resistivity and conductivity , dispersion polymerization , conductivity , polymer , refractive index , dispersion (optics) , semiconductor , conductive polymer , band gap , polymer chemistry , tetrafluoroborate , chemical engineering , analytical chemistry (journal) , composite material , optoelectronics , organic chemistry , optics , chemistry , ionic liquid , physics , electrical engineering , engineering , catalysis
The effects of tetrabutylammonium tetrafluoroborate (TBAFB), tetrabutylammonium hexafluorophosphate (TBAPF 6 ), and paratoluene sulfonoicacid (PTSA) polymerization mediums on the electrical conductivity and optical properties of the polypyrrole (PPy) have been investigated. The electrical conductivity and optical properties of the samples polymerized in presence of TBAFB, TBAPF 6 , and PTSA organic salts change with medium of prepared polymer. The electrical conductivity of the TBAFB, PTSA, and TBAPF 6 samples at 27°C were found to be 3.43 × 10 −1 , 4.48 × 10 −2 , and 1.60 × 10 −4 (S/cm), respectively. The lowest optical band gap of the polymer was found to be 2.23 eV. The refractive index dispersion of the samples obeys single oscillator model. The obtained results suggest that polymerization medium changes electrical conductivity and optical properties of the PPy. POLYM. ENG. SCI., 47:1016–1020, 2007. © 2007 Society of Plastics Engineers