Nomadic polarization in doped poly(o-methoxyaniline) films

被引：1
|
作者：
Nogueira, JS
Mattoso, LHC
Faria, RM
机构：
[1] CNPDIA,EMBRAPA,BR-13560970 SAO CARLOS,SP,BRAZIL
[2] USP,INST FIS SAO CARLOS,BR-13560970 SAO CARLOS,SP,BRAZIL
来源：
SYNTHETIC METALS | 1997年 / 84卷 / 1-3期
关键词：
polyaniline and derivatives; semiconducting films; transport measurements;
D O I：
10.1016/S0379-6779(96)04159-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The AC conductivity of poly(o-methoxyaniline) - POMA films with various doping levels were studied in the temperature range of 4.2 to 298 K. In the low frequency regime the conductivity is frequency-independent, but above a critical angular frequency omega(c) it obeys an equation of the form sigma(omega) proportional to omega(s). Both the sigma(0) conductivity oo and the critical frequency increase with temperature, whereas the exponential factor s is temperature-independent. Since the conduction of doped POMA is strongly dependent on the electronic mobility along the molecule backbone, a nomadic polarization model of quasi-one-dimensional solids was used to fit the experimental results. Values for the bulk mobility, the carrier density and the transition rate of the intermolecular charge transfer were estimated.
引用
收藏
页码：813 / 814
页数：2
相关论文
共 50 条
  • [21] Slow doping rate in DNA-poly(o-methoxyaniline) hybrid:: Uncoiling of poly(o-methoxyaniline) chain on DNA template
    Dawn, A
    Nandi, AK
    MACROMOLECULES, 2005, 38 (24) : 10067 - 10073
  • [22] Effects of electrochemical synthesis conditions on poly(o-methoxyaniline) thin films formation
    Profeti, Demetrius
    Profeti, Luciene P. R.
    Olivi, Paulo
    MATERIALS CHEMISTRY AND PHYSICS, 2018, 213 : 96 - 101
  • [23] Conducting blends of soluble polyurethane and poly(o-methoxyaniline)
    Goncalves, D
    Waddon, A
    Karasz, FE
    Akcelrud, L
    SYNTHETIC METALS, 1995, 74 (03) : 197 - 199
  • [24] Langnmir films of poly(o-toluidine) and poly(o-methoxyaniline) at the water-air interfacet
    Opaynych, Iryna
    Ukrainets, A.
    Aksimentyeva, O.
    ADSORPTION SCIENCE & TECHNOLOGY, 2007, 25 (1-2) : 15 - 21
  • [25] Electrochemical synthesis of poly(O-methoxyaniline) thin films: Effect of post treatment
    North Maharashtra Univ, Jalgaon, India
    Mater Chem Phys, 1 (31-36):
  • [26] Electrochemical synthesis of poly(O-methoxyaniline) thin films:: effect of post treatment
    Patil, S
    Mahajan, JR
    More, MA
    Patil, PP
    MATERIALS CHEMISTRY AND PHYSICS, 1999, 58 (01) : 31 - 36
  • [27] Experimental and simulated transmittance versus potential curves for poly(o-methoxyaniline) films
    Goncalves, D
    Matvienko, B
    Bulhoes, LOS
    SYNTHETIC METALS, 1996, 83 (02) : 147 - 151
  • [28] Deposition and electrical conductivity of poly(o-methoxyaniline) Langmuir-Blodgett films
    Sworakowski, J
    Goncalves, D
    Oliveira, ON
    Faria, RM
    CHEMICKE LISTY, 1996, 90 (01): : 52 - 55
  • [29] ELECTROCHROMISM OF POLY(O-METHOXYANILINE) FILMS ELECTROCHEMICALLY OBTAINED IN AQUEOUS-MEDIUM
    GONCALVES, D
    MATVIENKO, B
    BULHOES, LOS
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1994, 371 (1-2) : 267 - 271
  • [30] Influence of supporting electrolyte on the electrochemical synthesis of poly(o-methoxyaniline) thin films
    Patil, S
    Mahajan, JR
    More, MA
    Patil, PP
    MATERIALS LETTERS, 1999, 39 (05) : 298 - 304
12345