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AC electrical behavior of nanostructure thin film ClAlPc sandwich devices with aluminum electrodes

M. E. AZIM-ARAGHI1,* , S. ABBASI1

Affiliation

  1. Applied Physics Division, Physics Department, Tarbiat Moallem University, 43 Mofateh Avenue, Tehran, Iran

Abstract

The AC electrical behavior of sandwich devices manufactured totally in vacuum using thermally evaporated nanostructure thin films of Chloroaluminium Phthalocyanine with aluminum electrodes (Al/ClAlPc/Al) is examined over the range of frequency 102 to 105 Hz and the temperature range 308 to 408 K. Capacitance increase with increasing temperature and decrease with increasing frequency and dissipation factor ( decrease with increasing frequency and has a pronounced maximum with increasing temperature at a given constant frequency. At low frequency the capacitance and the dissipation factor are more temperature dependent than frequency; such behavior has been shown to be in good agreement with the model of Simmons et al. In this research work the over the range of frequency < 103 Hz the band theory and over the range of frequency > 103 Hz the hopping mechanism is applicable in explaining the conduction process in ClAlPc thin films with aluminum electrodes..

Keywords

Ac electrical, Nanostructure thin film, Phthalocyanine.

Submitted at: July 8, 2010
Accepted at: Aug. 12, 2010

Citation

M. E. AZIM-ARAGHI, S. ABBASI, AC electrical behavior of nanostructure thin film ClAlPc sandwich devices with aluminum electrodes, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 8, pp. 1777-1780 (2010)