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Space charge limited current conduction in ZincPhthalocyanine (ZnPc) thin films

Senthilarasu, S.; Sathyamoorthy, R.; Lalitha, S.; Subbarayan, A.

Authors

R. Sathyamoorthy

S. Lalitha

A. Subbarayan



Abstract

The electrical conduction properties of ZincPhthalocyanine (ZnPc) thin films, sandwiched between Aluminium electrodes (metal–semiconductor–metal) were investigated at the temperature range 303–483 K. At the low-voltage region the current conduction in the device is Ohmic type. The charge transport phenomenon appears to be space charge limited current (SCLC) at the higher-voltage regions, in the presence of a discrete trapping level. Various electrical parameters were determined from the I–V and C–V analysis. The carrier mobility increases with increasing temperature whereas the density of trapped holes decreases with increasing temperature. The barrier height has also decreases with increase in temperature.

Journal Article Type Article
Acceptance Date Jan 4, 2005
Online Publication Date Feb 2, 2005
Publication Date 2005-05
Deposit Date Mar 13, 2023
Print ISSN 0038-1101
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 49
Issue 5
Pages 813-817
DOI https://doi.org/10.1016/j.sse.2005.01.007
Keywords Thermal evaporation, Organic thin film, ZnPc, I–V, C–V, SCLC