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Effect of temperature on stacking orientations of zinc phthalocyanine thin films

Senthilarasu, S.; Baek, Su-Jin; Chavhan, S.D.; Lee, J.; Lee, Soo-Hyoung


Su-Jin Baek

S.D. Chavhan

J. Lee

Soo-Hyoung Lee


This paper reports the structural and optical properties of zinc phthalocyanine (ZnPc) thin films, prepared by thermal evaporation method, and their stacking dependence on the substrate temperature. The thickness of the films was measured by a quartz crystal monitor. X-ray diffraction analysis of the vacuum evaporated ZnPc films identified a phase transformation of metastable α-ZnPc phase to stable β-ZnPc phase due to variation in the substrate temperature. The crystallite size (D), dislocation density (δ) and strain (ε) were calculated. The transmittance and absorbance spectra were recorded in the wavelength range 300–2500 nm using a UV-vis spectrophotometer. As the temperature was increased from room temperature to 200 °C, the band gap energy was decreased from 1.82 eV to 1.67 eV. The phase transformation was also confirmed by optical studies.


Senthilarasu, S., Baek, S., Chavhan, S., Lee, J., & Lee, S. (2008). Effect of temperature on stacking orientations of zinc phthalocyanine thin films. Journal of Nanoscience and Nanotechnology, 8(10), 5414-5417.

Journal Article Type Article
Publication Date 2008-10
Deposit Date Mar 14, 2023
Print ISSN 1533-4880
Publisher American Scientific Publishers
Peer Reviewed Peer Reviewed
Volume 8
Issue 10
Pages 5414-5417
Keywords Optical, Stacking orientation, Thermal evaporation, Zinc Phthalocyanine (ZNPC)