Zargar, Rayees Ahmad and Khan, Sharief Ud Din and Khan, Mohd Shahid and Arora, Manju and Hafiz, Aurangzeb Khurram
(2014)
Synthesis and Characterization of Screen Printed Zn0.97Cu0.03O Thick Film for Semiconductor Device Applications.
Physics Research International .
ISSN 2090-2220
Abstract
The studies on doped ZnO thick films deposited over large surface area are still a very promising area of research and development.
We report characteristic properties of thick film of Zn0.97Cu0.03O prepared by the economic screen printing technique. The film was
characterized by XRD, SEM, diffused reflectance, FTIR, and dark resistivity measurement techniques. The XRD and SEM studies
revealed polycrystalline, single phase, porous, and granular surface morphology of this Cu doped ZnO thick films. The direct band
gap energy of this film determined by diffuse reflectance technique is 3.18 eV. IR transmission spectrum measured in 4000–600 cm−1
region at ambient temperature confirmed the incorporation of Cu2+ ions in ZnO lattice. The DC resistivity measurements reveal
semiconducting nature of the sample with activation energy of 0.66 eV.
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