Journal ArticleDOI
Conducting Polymers: Halogen Doped Polyacetylene.
TLDR
In this article, the electrical conductivity of the halogen doped transpolyacetylene system, (CH)x, was studied in terms of a model of the doping process based on charge transfer.Abstract:
A study of the electrical conductivity of the halogen doped transpolyacetylene system, (CH)x, is reported. When films of trans‐ (CH)x are exposed to chlorine, bromine, or iodine vapor, uptake of halogen occurs; and the conductivity increases markedly, over eleven orders of magnitude in the case of iodine. The behavior of the halogenated polyacetylene is like that of a series of semiconductors with activation energies which vary with halogen content. The results are discussed in terms of a model of the doping process based on charge transfer.read more
Citations
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100th Anniversary of Macromolecular Science Viewpoint: Recent Advances and Opportunities for Mixed Ion and Charge Conducting Polymers
TL;DR: Macromolecules that exhibit both electron transport and ionic mass transport (i.e., mixed conducting polymers) are ascendant with respect to both emerging application spaces and the elucidation of...
Journal ArticleDOI
Photoluminescence of cis- and trans-polyacetylene
TL;DR: The emission intensity in cis-(CH)χ increases a little and the emission peak shifts a little to shorter wavelength with increasing temperature, which can be interpreted by the distribution of several emission centers in energy as mentioned in this paper.
Journal ArticleDOI
Tensile properties and partial alignment of polyacetylene, (CH)x, films
TL;DR: In this paper, the tensile properties of polyacetylene were investigated in order to determine the variables that influence the ultimate extension ratio (l/l0) of trans and cis-polyacetylene films.
Journal ArticleDOI
Quantifying charge carrier localization in chemically doped semiconducting polymers.
Shawn A. Gregory,Riley Hanus,Amalie Atassi,Joshua M. Rinehart,Jamie P. Wooding,Akanksha K. Menon,Mark D. Losego,G. Jeffery Snyder,Shannon K. Yee +8 more
TL;DR: A semi-localized transport (SLoT) model has been proposed in this article, which captures both localized and delocalized transport contributions in semiconducting polymers, and is able to determine systemdependent parameters such as the maximum localization energy of the system, how this localization energy changes with doping, the amount of dopant required to achieve metal-like conductivity and the conductivity a system could have in the absence of localization effects.
Journal ArticleDOI
The Structural and Electronic Properties of Pristine and Doped Polythiophene: Periodic Versus Molecular Calculations
TL;DR: In this paper, the structural and electronic properties of polythiophene in periodic and oligomer forms have been investigated based on density functional theory calculations, in particular, the effects of Li or Cl adsorption onto a monolayer and Li-intercalation into bulk or bilayer polythsiophene are addressed using periodic calculations.
References
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Journal ArticleDOI
Electrical Conductivity in Doped Polyacetylene.
C. K. Chiang,C. R. Fincher,Yung Woo Park,Alan J. Heeger,H. Shirakawa,E. J. Louis,S. C. Gau,Alan G. MacDiarmid +7 more
TL;DR: In this paper, a metal-to-insulator transition at dopant concentrations near 1% was shown for polyacetylene, a new class of conducting polymers in which the electrical conductivity can be systematically and continuously varied over a range of eleven orders of magnitude.
Journal ArticleDOI
Hopping Conductivity in Disordered Systems
TL;DR: In this paper, the authors considered a model in which charge is transported via phonon-induced tunneling of electrons between localized states which are randomly distributed in energy and position, and obtained an electrical conductivity of the form
Journal ArticleDOI
Synthesis of highly conducting films of derivatives of polyacetylene, (CH)x
C. K. Chiang,M. A. Druy,S. C. Gau,A. J. Heeger,E. J. Louis,Alan G. MacDiarmid,Yung Woo Park,H. Shirakawa +7 more
Journal ArticleDOI
Thermal cis–trans isomerization and decomposition of polyacetylene
TL;DR: In this paper, thermal analysis and infrared spectroscopy of polyacetylene was used to investigate cis-trans isomerization, hydrogen migration accompanied with crosslinking reaction, and thermal decomposition.