M.K.M. Ali

Investigation on Molybdenum Thin Films Deposited by DC-Sputtering on Polyethylene Terephthalate Substrate

Molybdenum (Mo) films were prepared by DC sputtering on a polyethylene terephthalate (PET) substrate with different thicknesses. The molybdenum finds use in a very broad spectrum of applications in widely different forms. The obtained results of thin films of molybdenum deposited on PET are characterized by atomic force microscopy (AFM) and X-ray diffraction (XRD) and (EDX). It was found that the thickness increases with the time of deposition and reduces the resistivity and sheet resistance. The lowest resistivity value we found for the Mo films was 1.3 × 10−5 Ω · cm at thickness (210 nm).

Surface Morphology and Structural Properties of Silver Thin Films Prepared on Polyethylene Terephthalate (PET) Substrate by Screen Printing Technique

In this work, different thicknesses of silver (Ag) thin films were prepared on flexible polyethylene terephthalate (PET) plastic substrates by screen printing technology. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used to characterize morphology and surface roughness of the Ag thin films. Crystallinity and crystallites sizes of the films were verified on High resolution X-ray diffraction (HR-XRD) system. From the AFM, rough surfaces were revealed with root mean square surface roughness (RMS) ranging from 20 to 40 nm for different thicknesses of the films and were found to be strongly dependent on the film thickness. The HR-XRD spectra showed different crystalline orientations of Ag thin films (with various thicknesses) produced by the screen printing technique. All the experimental findings were subsequently discussed.