STRUCTURE AND ELECTRONIC TRANSPORT OF HIGHLY CONDUCTIVE LANGMUIR-BLODGETT-FILMS OF TRIDECYLMETHYLAMMONIUM-AU(DMIT)2

被引：37

作者：

MIURA, YF ^{[1
]}

TAKENAGA, M ^{[1
]}

KASAI, A ^{[1
]}

NAKAMURA, T ^{[1
]}

MATSUMOTO, M ^{[1
]}

KAWABATA, Y ^{[1
]}

机构：

[1] NATL CHEM LAB IND,TSUKUBA,IBARAKI 305,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1991年 / 30卷 / 12A期

关键词：

CONDUCTIVE LB FILMS; TRIDECYLMETHYLAMMONIUM-AU(DMIT)2; ELECTRICAL CONDUCTIVITY; THERMOELECTRIC POWER; ELECTROCHEMICAL OXIDATION; VARIABLE RANGE HOPPING;

D O I：

10.1143/JJAP.30.3503

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electronic transport measurements are reported for Langmuir-Blodgett (LB) films of tridecylmethylammonium-Au(dmit)2 for 300-4 K. The conductivity after electrochemical oxidation is 30-50 S/cm at room temperature, increases with decreasing temperature, and begins decrease at about 200 K. The conductivity at lower temperatures is explained by two-dimensional variable range hopping (2D VRH). The thermoelectric power (S) is positive and well fitted by a linear combination of the temperature dependence of 2D VRH (S(v) is-proportional-to T1/3) and that of metal (S(m) is-proportional-to T). These results can be explained by a model in which highly conductive metallic regions are separated by thin weakly conductive regions. The UV/visible absorption spectra and the X-ray diffraction patterns indicate that a large structural change occurs accompanied by electrochemical oxidation.

引用

页码：3503 / 3509

页数：7

共 38 条

[1] INTERPRETATION OF EQUILIBRIUM AND STEADY-STATE HALL AND THERMOELECTRIC EFFECTS IN INHOMOGENEOUS MATERIALS [J].