Structural, Morphological, and Optical Properties of Nanocrystalline (Bi2O3)1−x:(TiO2)x Thin Films for Transparent Electronics
| Autor: | Kadhim R. Gbashi, Aus A. Najim, Malek A.H. Muhi, Ammar T. Salih |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Band gap Biophysics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry Nanocrystalline material Pulsed laser deposition 010309 optics Crystallinity 0103 physical sciences Transmittance Optoelectronics Crystallite Thin film 0210 nano-technology business Biotechnology Monoclinic crystal system |
| Zdroj: | Plasmonics. 14:623-630 |
| ISSN: | 1557-1963 1557-1955 |
| DOI: | 10.1007/s11468-018-0840-1 |
| Popis: | The fabrication of low cost and eco-friendly transparent electronics using metal oxide semiconductors is still a challenging task. In this work, transparent nanocrystalline (Bi2O3)1−x:(TiO2)x thin films were synthesized using a pulsed laser deposition technique (PLD); XRD analysis shows the films have polycrystalline structure of monoclinic Bi2O3; morphological and topographical properties were analyzed by SEM and AFM showing the films have smooth surfaces with RMS roughness (4.26–7.37 nm) with micro-and nano-spheres (2 μm to 23 nm); the optical properties were analyzed by Uv-Vis spectrometer and revealed high transmittance in the visible range; the best results were obtained at x = 0.05 where the highest crystallinity, highest transmittance (> 82%), and highest band gap (3.769 eV) were achieved; and empirical models have been proposed to estimate the band gap and Bi–O bond lengths as a function of TiO2 concentration with excellent coincidence with the experimental data. |
| Databáze: | OpenAIRE |
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