Long Mean Free Path Coherent Transport in Doped Polyacetylene
A modified technique has been used to synthesize stretch oriented polyacetylene with fewer sp3 defects than in material prepared by other methods. The higher quality material exhibits substantially higher electrical conductivity. The data indicate a long electronic mean free path consistent with coherent metallic transport.
KeywordsFree Path High Electrical Conductivity Free Electron Mass High Quality Material Microscopic Defect
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- 1.For reviews, see the followingGoogle Scholar
- a).Handbook of Conducting Polymers, ed. Skotheim, T.J. (Marcel Dekker, Inc., NY, 1986).Google Scholar
- 2.Gould, CM., Bates, D.M., Bozler, H.M., Heeger, A.J., Druy, M.A., and MacDiarmid, A.G.; Phys. Rev B23, 6820 (1981).Google Scholar
- 4.Naarmann, H., Proc. of ICSM 86, Synth. Met. (to be published).Google Scholar
- 5.Catalyst: 31 ml AI(C2H5)3 and 41 ml Ti(C4H9O)4 in 50 ml silicone oil (Wacker).Google Scholar
- 6.Elemental analysis: C, 91.7–92.2%; H, 7.6–7.7%; O, <0.5%; Al/Ti. 0.01%.Google Scholar
- 7.Three hours in toluene followed by sixteen hours in methanol containing 6% HCl and finally two periods of 1–1.5 hours each with methanol.Google Scholar
- 8.H. Naarmann, Symposium on “Conducting Polymers: Their Emergence and Future”; American Chemical Society Meeting, Denver, Colorado; April 8 and 9, 1987.Google Scholar
- 10.E. J. Mele and M.J. Rice, Phys. Rev. B 23. 5397 (1981).Google Scholar
- 11.P. M. Grant and I. Batra, J. Phys. (Paris) Colloq. 44, C3–4377, (1983).Google Scholar
- 12.G. Fink and G. Leising, Phys. Rev. B 34 (1986).Google Scholar