Structural properties of copper phthalocyanine films grown by electrophoretic deposition process

Abstract

In this work, organic film of copper phthalocyanine (CuPc) was prepared by electrophoretic deposition process. The structural, morphological and optical properties of CuPc films were characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM), and UV-VIS spectroscopy. The effect of annealing temperature on properties of CuPc films has been studied. When the annealing temperature is increased, the phase transformation of CuPc gradually changes from α-phase to β-phase. The optical absorption spectra of films at the different annealing temperature demonstrated the characteristics of B-band and Q-band of CuPc films. Moreover, the morphology of films exhibited the rod-like structure, while at higher annealing temperature the morphology of CuPc films change to sheet-like structure.