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Synthesis and characterization of undoped and Er-doped ZnO nano-structure thin films deposited by sol-gel spin coating technique
| Content Provider | Scilit |
|---|---|
| Author | Ghanem, M. G. Badr, Y. A. Hameed, Talaat A. El-Marssi, Mimoun Lahmar, Abdelilah Wahab, H. A. Battisha, I. K. |
| Copyright Year | 2019 |
| Description | Journal: Materials Research Express Pure and Erbium (Er3+)-doped ZnO (Er3+ = 0.0, 1.0 and 1.5) nano-structure thin films were successively deposited onto pre-cleaned glass substrates by modified sol-gel spin coating technique. The influence of Er doping on the composition, structure, morphology, optical and electrical was examined by energy dispersive X -ray analysis (EDS), X-Ray diffraction (XRD), transmission electron microscope(TEM), Raman spectroscopy, filed emission scanning electron microscopy (FESEM), four-probe method and ultraviolet-visible-near infrared spectroscopy. The EDS profile exhibits the films possess near stoichiometric in composition and hence confirmed the incorporation of Er in the ZnO matrix with the desired Wt.%. The XRD measurement and selected area electron diffraction pattern (SEDA) acquired by TEM show the nonexistence of the diffractions characteristic to Er3+ verifying Erbium atoms were incorporated successfully into ZnO lattice. The XRD shows that the incorporation of 1.5 wt.% Er3+ resulted in notable increase in peak intensities revealing improved crystallinity. Both XRD and Raman spectroscopy show that the incorporation of Er3+ in ZnO matrix resulted in improved crystallinity. FESEM plane images indicated that the ZnO thin film has interconnected spherical particles with the presence of pore, whilst Er-doped ZnO films have compact and uniform morphology. Analyses of optical data point out that value of band gap of Er doped ZnO have lower values than pure film, consistent with earlier works prepared by different methods. The absorption edge shifts towards lower photon energies with increasing Erbium content. |
| Related Links | https://iopscience.iop.org/article/10.1088/2053-1591/ab2750/pdf |
| ISSN | 20531591 |
| e-ISSN | 20531591 |
| DOI | 10.1088/2053-1591/ab2750 |
| Journal | Materials Research Express |
| Issue Number | 8 |
| Volume Number | 6 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2019-06-05 |
| Access Restriction | Open |
| Subject Keyword | Journal: Materials Research Express Condensed Matter Physics Raman Spectroscopy Thin Films |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Metals and Alloys Biomaterials Electronic, Optical and Magnetic Materials Polymers and Plastics |
