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1 2013

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Optical and surface morphological studies on CuPcOC8 thin films prepared by physical vapour deposition

Vadakel V. T., Menon C. S.

Materials Science Poland

2013

Vol. 31, No. 3

391--396

2,3,9,10,16,17,23,24-copper octakis (octyloxy) phthalocyanine (CuPcOC8) thin films deposited at room temperature have exhibited a change in their surface morphology with the post deposition annealing temperature under normal atmosphere.These films have been characterised by optical absorption also. SEM images have shown densely packed nano particles and nano-rod like structures on the substrates annealed at different temperatures. The optical transition was found to be direct allowed and the direct energy gap changed with the annealing temperature. The results of optical and surface morphological studies on CuPcOC8 have been discussed.