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Substrate temperature effects on structural orientations and optical properties of ZincPthalocyanine (ZnPc) thin films

Senthilarasu, S.; Sathyamoorthy, R.; Kulkarni, S.K.


R. Sathyamoorthy

S.K. Kulkarni


The effect of substrate temperature on structural and optical properties of vacuum evaporated ZincPhthalocyanine (ZnPc) thin films have been studied by the X-ray diffraction method (XRD) and spectrophotometer, respectively. The X-ray diffraction analysis of vacuum evaporated ZnPc films reveals that the metastable α-ZnPc phase to stable β-ZnPc phase transformation is identified due to different substrate temperatures. The orientations of the ZnPc molecules are arranged parallel to the substrate surface and confirmed by the SEM and XRD analysis. The band gap energy was decreased from 1.82 to 1.67 eV when the substrate temperature increases.

Journal Article Type Article
Acceptance Date May 8, 2005
Online Publication Date Jun 27, 2005
Publication Date Sep 15, 2005
Deposit Date Mar 13, 2023
Print ISSN 0921-5107
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 122
Issue 2
Pages 100-105
Keywords ZincPhthalocyanine, Thin films, Substrate temperature, Optical absorption, Phase change