Influence of air annealing and gamma ray irradiationon the optical properties of Cl16FePc thin films

Metal phthalocyanines are one of the most promising candidates to be used in the fabrication of such devices. among various phthalocyanines,iron hexadecachloro phthalocyanine (cl16fepc) has received less attention. basic characteristics of cl16fepc are not reported in literature. hexadecacholoro phthalocyanines have attracted interest as possible n-type organic semiconductor with high electron mobility and good stability characteristics. in the present work we investigate the optical band gap of the cl16fepc thin films from the optical absorption spectrum as a function of air annealing temperatures and their suitability for the fabrication of molecular electronic devices. some optical properties of the samples were studied as a function of γ-radiation doses also. optical transition is found to be of direct type and optical band gaps are determined by analyzing the absorption spectrum. vacuum sublimed thin films of iron hexadecachloro phthalocyanine were prepared at room temperature on © 2012 hindawi publishing corporation.