A Survey on Copper Doping Zno Thin Films
Keywords:
XRD, ZnO, Diffraction, ResistivityAbstract
The outcome of copper doping ZnO thin films, placed by means of
a sol-gel dip-coating process, on the structural, optical and ethanol
vapour-sensing possessions, was observed. The variety of the doping
content is 0 wt. %–5 wt. % Cu/Zn and the films’ assets were deliberate
using x-ray diffraction, scanning electron microscopy and a UV–vis
spectrophotometer.
Zinc oxide is one of the most important n-type semi-conductors
intensively utilized in solar cells, transparent conducting electrodes and
opto-electronic devices. The X-Ray diffraction shows the polycrystalline
hexagonal quartzite structure exhibiting degradation in crystallinity of
elaborated films with increasing Al doping concentration. This outcome
is reflected on optical and electrical proprieties of films. Certainly, the
examples contemporary a low optical transmittance level and the
band gap values amid 3.17 eV and 3.20 eV. Regarding the electrical
properties, a diminution in the attentiveness of free charges transporters
is experiential as well as a lessening in resistivity.
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