Effect of electrode material on AC electrical conductivity of organic zinc phthalocyanine semiconducting thin films
作者： A.O. Abu-Hilal , A.M. Saleh , R.D. Gould
DOI: 10.1016/J.MATCHEMPHYS.2005.04.027
关键词: Thermal conduction 、 Organic semiconductor 、 Electrical resistivity and conductivity 、 Materials science 、 Electrode 、 Thin film 、 Conductivity 、 Atmospheric temperature range 、 Ohmic contact 、 Analytical chemistry 、 General Materials Science 、 Condensed matter physics
摘要: Abstract The AC electrical conductivity of thermally evaporated zinc phthalocyanine, ZnPc, semiconducting thin films was measured in the temperature range 180–430 K and frequency between 0.1 20 kHz. Gold aluminum contact electrodes were employed both showed ohmic contacts. In cases, strong dependence on frequency. Such is related to relevant under consideration. However, for electrode materials, σ ( ω ) found vary with angular frequency, , as s index ≤ 1 suggesting a dominant hopping conduction process at low temperatures decreased above 330 K, while samples Au-electrodes it 430 K. former decrease attributed oxygen exhaustion, latter ascribed α–β-phase transition.
elsevier.com
sci-hub.se 参考文章(40)
A. Ahmad, R. A. Collins, Schottky Barrier Formation and Electrical Transport in Oxygen-Doped Triclinic Lead Phthalocyanine Films Physica Status Solidi (a). ,vol. 126, pp. 411- 426 ,(1991) , 10.1002/PSSA.2211260212
R.D. Gould, S.A. Awan, Dielectric properties of AlNx thin films prepared by RF magnetron sputtering of Al using a N2/Ar sputtering gas mixture Thin Solid Films. ,vol. 469, pp. 184- 189 ,(2004) , 10.1016/J.TSF.2004.08.099
N.M Amar, R.D Gould, A.M Saleh, Structural and electrical properties of the α-form of metal-free phthalocyanine (α-H2Pc) semiconducting thin films Current Applied Physics. ,vol. 2, pp. 455- 460 ,(2002) , 10.1016/S1567-1739(02)00156-6
S. R. Elliott, A theory of a.c. conduction in chalcogenide glasses Philosophical Magazine. ,vol. 36, pp. 1291- 1304 ,(1977) , 10.1080/14786437708238517
R.A. Collins, K.A. Mohammed, Electrical, structural and gas sensing properties of zinc phthalocyanine thin films Thin Solid Films. ,vol. 145, pp. 133- 145 ,(1986) , 10.1016/0040-6090(86)90260-9
S. A. James, A. K. Ray, J. SILVER, Dielectric and Optical Studies of Sublimed MoOPc Films Physica Status Solidi (a). ,vol. 129, pp. 435- 441 ,(1992) , 10.1002/PSSA.2211290213
Lihua Huo, Lixin Cao, Xinglin Li, Wei Li, Haining Cui, Dapeng Jiang, Guangfu Zeng, Shiquan Xi, Study of ferric oxide nanoparticles-tris-(2,4-di-t-amylphenoxy)-(8-quinolinolyl) copper phthalocyanine composite LB film Thin Solid Films. ,vol. 365, pp. 129- 133 ,(2000) , 10.1016/S0040-6090(99)01101-3
P Mikulík, M Jergel, T Baumbach, E Majková, E Pincík, S Luby, L Ortega, R Tucoulou, P Hudek, I Kostic, Coplanar and non-coplanar x-ray reflectivity characterization of lateral W/Si multilayer gratings Journal of Physics D. ,vol. 34, ,(2001) , 10.1088/0022-3727/34/10A/339
S. E. Harrison, K. H. Ludewig, Conductivity and Crystal Phase Change in Phthalocyanines Journal of Chemical Physics. ,vol. 45, pp. 343- 348 ,(1966) , 10.1063/1.1727331
E Orti, JL Bredas, Electronic structure of metal‐free phthalocyanine: A valence effective Hamiltonian theoretical study Journal of Chemical Physics. ,vol. 89, pp. 1009- 1016 ,(1988) , 10.1063/1.455251