Electronic properties of polyamide-PPy/metal junction and electrical conductivity of a typical sample at low temperatures

被引:7
作者
Sünel, N
Sedef, AG
Parlak, M
Toppare, L
机构
[1] Gaziosmanpasa Univ, Dept Phys, Tokat, Turkey
[2] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey
[3] Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey
关键词
electronic properties; polypyrrole; composite/metal junction; VRH conductivity; Mott parameters;
D O I
10.1016/j.matchemphys.2004.11.018
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electronic properties of junctions fabricated by polyamide-polypyrrole composite films polymerized with adjusted doping concentration and various metal contacts (In, Al, Au and Ag) were investigated. For the junctions giving good rectification I-0, n and phi(b) were specified. Conductivity of polyamide-polypyrrole composite polymer was obtained as a function of temperature in the 70-320 K range and was found to obey the VRH model. In addition the Mott parameters were evaluated. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:227 / 232
页数:6
相关论文
共 15 条
[1]   LOW-TEMPERATURE CONDUCTIVITY OF ORIENTED IODINE-DOPED POLYACETYLENE FILMS [J].
ALESHIN, AN ;
GUK, EG ;
KOBRYANSKII, VM ;
MARICKIN, VA ;
MYASNIKOVA, LP .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1992, 65 (04) :789-794
[2]   The polaron and bipolaron contributions to the electronic structure of polypyrrole films [J].
Appel, G ;
Böhme, O ;
Mikalo, R ;
Schmeisser, D .
CHEMICAL PHYSICS LETTERS, 1999, 313 (3-4) :411-415
[3]   POLARONS AND BIPOLARONS IN POLYPYRROLE - EVOLUTION OF THE BAND-STRUCTURE AND OPTICAL-SPECTRUM UPON DOPING [J].
BREDAS, JL ;
SCOTT, JC ;
YAKUSHI, K ;
STREET, GB .
PHYSICAL REVIEW B, 1984, 30 (02) :1023-1025
[4]   Effect of competitive doping on sensing properties of polypyrrole [J].
Cabala, R ;
Meister, V ;
PotjeKamloth, K .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (01) :131-137
[5]  
Mott N., 1979, ELECT PROCESS NONCRY
[6]   Charge carriers in polyaniline film: a correlation between mobility and in-situ ESR measurements [J].
Patil, R ;
Harima, Y ;
Yamashita, K ;
Komaguchi, K ;
Itagaki, Y ;
Shiotani, M .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 518 (01) :13-19
[7]   One-dimensional localization effects in three-dimensional structures of highly-conducting polymers [J].
Prigodin, VN .
SYNTHETIC METALS, 1997, 84 (1-3) :705-708
[8]  
Rhoderic E. H., 1978, METAL SEMICONDUCTOR
[9]   Temperature dependence of rectification and photovoltaic effects in regioregular poly(3-alkylthiophene) films at the Schottky junction with Al electrode [J].
Rikitake, K ;
Pandey, S ;
Takashima, W ;
Kaneto, K .
CURRENT APPLIED PHYSICS, 2003, 3 (2-3) :321-324
[10]   Prospects of conducting polymers in molecular electronics [J].
Saxena, V ;
Malhotra, BD .
CURRENT APPLIED PHYSICS, 2003, 3 (2-3) :293-305