KBr基板上に堆積したチタニルフタロシアニン蒸着膜の結晶構造と表面形態

Abstract

Orientational thin films of metal phthalocyanine are expected to the application of optical computer element, such as optical switching and memory. Our research group has reported nonlinear optical characteristics and morphologies of vandyl-phthalocyanine (VOPc) films. In this paper, titanyl-phthalocyanine (TiOPc) that the molecular structure was similar to VOPc was noticed. We investigated crystal structure and surface morphology of TiOPc thin films prepared on KBr substrate by Vis/UV spectra measured with Vis/UV spectroscopy, X-ray diffraction (XRD), second-order harmonics (SH) and third-order harmonics (TH) detected by using Maker fringe method and Atomic Force Microscope (AFM) images. From those results, it is indicated that TiOPc thin film on KBr substrate grows epitaxy. Moreover, it is shown that the surface of TiOPc film is formed by island crystals.