The Impact of Lighting on Electrical Properties of Metals and 8-hydroxyquinoline Complexes Thin Films

摘要

In this paper structural and optical properties of the thin films containing metal (M = Zn and Cu) and 8-hydroxyquinoline are presented. The films were successfully grown by physical vapor deposition (PVD) technique in high vacuum on transparent (glass) and semiconductor (n-type silicon) substrates kept at room temperature during the deposition process. Nyquist plots and Admittance as a function of frequency and wavelengths were in detail analyzed. Admittance spectroscopy is a power tool in the study of semiconductors. This diagnostic technique gives information about uncompensated conductance and capacitance of single and multilayer structures. We investigated conductance and capacitance of these thin films subjected lighting in the region of their strong absorption band.