Frequency dependent conductivity of lightly doped cis-polyacetylene: Role of multiply connected doped trans-polyacetylene regions
作者： A.J. Epstein , H. Rommelmann , H.W. Gibson
DOI: 10.1016/0379-6779(84)90048-1
关键词:
摘要: Abstract The evolution of the frequency and temperature dependence conductivity cis -polyacetylene [ -(CH) x ] lightly doped with iodine is reported. As dopant concentration increased, frequency-dependent contribution to remains unchanged while frequency-independent increases dramatically. These results are inconsistent formation small isolated metallic islands embedded in undoped . data support idea that even at lightest levels studied (d.c. increased by only one order magnitude), regions multiply connected, not isolated. Comparison temperature- conductivities trans implies isomerized configuration there may be some structural fibril cores, agreement earlier spectroscopic studies.
elsevier.com
sci-hub.se 参考文章(42)
A.J. Epstein, H. Rommelmann, R. Fernquist, H.W. Gibson, M.A. Druy, T. Woerner, Morphology of polyacetylene and doped polyacetylene Polymer. ,vol. 23, pp. 1211- 1221 ,(1982) , 10.1016/0032-3861(82)90381-0
P Bernier, M Rolland, C Linaya, M Disi, E.p.r. study of polyacetylene films Polymer. ,vol. 21, pp. 7- 8 ,(1980) , 10.1016/0032-3861(80)90159-7
H. Rommelmann, R. Fernquist, H. W. Gibson, A. J. Epstein, M. A. Dury, T. Woerner, Morphology and Dopant Distribution in Polyacetylene Molecular Crystals and Liquid Crystals. ,vol. 77, pp. 177- 184 ,(1981) , 10.1080/00268948108075239
Y. Tomkiewicz, T. D. Schultz, H. B. Brom, A. R. Taranko, T. C. Clarke, G. B. Street, Solitons or inhomogeneous doping in AsF5-doped polyacetylene—EPR and dc conductivity evidence Physical Review B. ,vol. 24, pp. 4348- 4363 ,(1981) , 10.1103/PHYSREVB.24.4348
M. Audenaert, G. Gusman, R. Deltour, Comment on "role of solitons in nearly metallic polyacetylene" Physical Review Letters. ,vol. 51, pp. 2019- 2019 ,(1983) , 10.1103/PHYSREVLETT.51.2019
Y. Tomkiewicz, T. D. Schultz, H. B. Broom, T. C. Clarke, G. B. Street, Evidence Against Solitons in Polyacetylene: Magnetic Measurements Physical Review Letters. ,vol. 43, pp. 1532- 1536 ,(1979) , 10.1103/PHYSREVLETT.43.1532
A.J. Epstein, H. Rommelmann, M.A. Druy, A.J. Heeger, A.G. MacDiarmid, Magnetic susceptibility of iodine doped polyacetylene: The effects of nonuniform doping Solid State Communications. ,vol. 38, pp. 683- 687 ,(1981) , 10.1016/0038-1098(81)90397-5
J. J. Hauser, Electrical and Structural Properties of Amorphous Metal—Metal-Oxide Systems Physical Review B. ,vol. 7, pp. 4099- 4111 ,(1973) , 10.1103/PHYSREVB.7.4099
A. J. Heeger, A. G. MacDiarmid, S. Ikehata, J. Kaufer, T. Woerner, A. Pron, M. A. Druy, A. Sivak, Solitons in Polyacetylene: Magnetic Susceptibility Physical Review Letters. ,vol. 45, pp. 1123- 1126 ,(1980) , 10.1103/PHYSREVLETT.45.1123
W. P. Su, J. R. Schrieffer, A. J. Heeger, Soliton excitations in polyacetylene Physical Review B. ,vol. 22, pp. 2099- 2111 ,(1980) , 10.1103/PHYSREVB.22.2099