Preparation of electronically conducting ultra-thin polymer films

被引:12
作者
Cho, GJ
机构
[1] Department of Chemical Engineering, Suncheon National University, Suncheon, Chonnam 540-742
关键词
D O I
10.1246/bcsj.70.2309
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Admicellar polymerization uses adsorbed surfactant aggregates to concentrate monomeric species at the solution-solid interface and to localize the polymer-forming reaction over a surface. The process has been adapted for the deposition of polypyrrole thin films on mica substrates. Amphiphiles adsorb from aqueous solution onto mica substrates and form self-assembled arrays. These arrays have been characterized by atomic force microscopy (AFM). Polypyrrole films prepared by polymerization in the self-assembled arrays (PSAA) were characterized and compared with samples made by polymerization in the absence of self-assembled arrays (surface nucleation, PSN). Images and measurements by AFM indicate that PSAA films over mica surfaces tend to be much smoother than PSN layers at the same condition. The ultrathin PSAA (130 nm) can be fabricated simply, controlled by changing the ratio between water, surfactant, and pyrrole concentration under ambient conditions. Although thinner, PSAA films have more stable and higher conductivity than the PSN films. The relationship between film morphology and electronic properties has been discussed.
引用
收藏
页码:2309 / 2316
页数:8
相关论文
共 24 条
  • [1] CHARACTERIZATION OF POLYPYRROLE ELECTROPOLYMERIZED ON DIFFERENT ELECTRODES
    CHEUNG, KM
    BLOOR, D
    STEVENS, GC
    [J]. POLYMER, 1988, 29 (09) : 1709 - 1717
  • [2] CHO G, UNPUB LANGMUIR
  • [3] CHO G, 1995, THESIS U OKLAHOMA NO
  • [4] A LAMELLAR CONDUCTING POLYMER BY SELF-ASSEMBLY OF AN ELECTROPOLYMERIZABLE MONOMER
    COLLARD, DM
    FOX, MA
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (24) : 9414 - 9415
  • [5] AN IR SPECTROSCOPIC STUDY OF THE ELECTROCHEMICAL REDUCTION OF POLYPYRROLE DOPED WITH DODECYL-SULFATE ANION
    DAVIDSON, RG
    TURNER, TG
    [J]. SYNTHETIC METALS, 1995, 72 (02) : 121 - 128
  • [6] DIAZ AF, 1981, J ELECTROANAL CHEM, V129, P115, DOI 10.1016/0368-1874(81)87387-X
  • [7] EPSTEIN AJ, 1986, HDB CONDUCTIVE POLYM
  • [8] FERREIRA CA, 1990, J ELECTROANAL CHEM, V284, P35
  • [9] IMMOBILIZATION OF GLUCOSE-OXIDASE IN FERROCENE-MODIFIED PYRROLE POLYMERS
    FOULDS, NC
    LOWE, CR
    [J]. ANALYTICAL CHEMISTRY, 1988, 60 (22) : 2473 - 2478
  • [10] LANGMUIR-BLODGETT MANIPULATION OF ELECTRICALLY CONDUCTIVE POLYPYRROLES
    HONG, K
    ROSNER, RB
    RUBNER, MF
    [J]. CHEMISTRY OF MATERIALS, 1990, 2 (01) : 82 - 88