CHARGE DELOCALIZATION IN POLY(O-TOLUIDINE) FIBERS

被引:14
作者
WANG, YZ
JOO, J
HSU, CH
POUGET, JP
EPSTEIN, AJ
机构
[1] DUPONT CO INC,CENT RES & DEV,EXPTL STN,WILMINGTON,DE 19880
[2] UNIV PARIS 11,PHYS SOLIDES LAB,CNRS,URA 2,F-91405 ORSAY,FRANCE
[3] OHIO STATE UNIV,DEPT CHEM,COLUMBUS,OH 43210
来源
PHYSICAL REVIEW B | 1994年 / 50卷 / 23期
关键词
D O I
10.1103/PhysRevB.50.16811
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report the results of temperature-dependent conductivity σdc(T), thermoelectric power S(T), microwave dielectric constant εmw(T) (f=6.5 GHz) measurements, and x-ray diffraction studies for the camphor-sulfonic-acid-doped poly(o-toluidine) fibers prepared in m-cresol (POT-CSA). Compared to previously studied hydrochloric-acid-doped poly(o-toluidine) samples, POT-CSA fibers show significantly higher σdc with a much weaker T dependence, much larger εmw, and dramatically different temperature dependence of thermoelectric power with S(T)=A+BT, where A<0 and B>0. These results demonstrate the formation of the delocalized electronic state in the poly(o-toluidine) system, despite the asymmetry of the repeat unit. © 1994 The American Physical Society.
引用
收藏
页码:16811 / 16816
页数:6
相关论文
共 29 条
  • [21] TRANSPORT AND EPR STUDIES OF POLYANILINE - A QUASI-ONE-DIMENSIONAL CONDUCTOR WITH 3-DIMENSIONAL METALLIC STATES
    WANG, ZH
    SCHERR, EM
    MACDIARMID, AG
    EPSTEIN, AJ
    [J]. PHYSICAL REVIEW B, 1992, 45 (08): : 4190 - 4202
  • [22] ELECTRON LOCALIZATION AND CHARGE TRANSPORT IN POLY(O-TOLUIDINE) - A MODEL POLYANILINE DERIVATIVE
    WANG, ZH
    RAY, A
    MACDIARMID, AG
    EPSTEIN, AJ
    [J]. PHYSICAL REVIEW B, 1991, 43 (05): : 4373 - 4384
  • [23] 3 DIMENSIONALITY OF METALLIC STATES IN CONDUCTING POLYMERS - POLYANILINE
    WANG, ZH
    LI, C
    SCHERR, EM
    MACDIARMID, AG
    EPSTEIN, AJ
    [J]. PHYSICAL REVIEW LETTERS, 1991, 66 (13) : 1745 - 1748
  • [24] POLYANILINE IS A RANDOM-DIMER MODEL - A NEW TRANSPORT MECHANISM FOR CONDUCTING POLYMERS
    WU, HL
    PHILLIPS, P
    [J]. PHYSICAL REVIEW LETTERS, 1991, 66 (10) : 1366 - 1369
  • [25] INSULATOR-METAL TRANSITIONS IN RANDOM LATTICES CONTAINING SYMMETRICAL DEFECTS
    WU, HL
    GOFF, W
    PHILLIPS, P
    [J]. PHYSICAL REVIEW B, 1992, 45 (04): : 1623 - 1628
  • [26] ZABRODSKII AG, 1980, FIZ TEKH POLUPROV, V14, P1130
  • [27] ZABRODSKY AG, 1984, ZH EKSP TEOR FIZ+, V86, P727
  • [28] Ziabicki A., 1976, FUNDAMENTALS FIBRE F
  • [29] TRANSPORT STUDIES OF PROTONATED EMERALDINE POLYMER - A ANTIGRANULOCYTES POLYMERIC METAL SYSTEM
    ZUO, F
    ANGELOPOULOS, M
    MACDIARMID, AG
    EPSTEIN, AJ
    [J]. PHYSICAL REVIEW B, 1987, 36 (06): : 3475 - 3478