| Autor: |
Najim, Abdelhafid, Bajjou, Omar, Bakour, Anass, Boulghallat, Mustapha, Rahmani, Khalid |
| Předmět: |
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| Zdroj: |
Modern Physics Letters B; 4/10/2024, Vol. 38 Issue 10, p1-21, 21p |
| Abstrakt: |
In this work, we study the impact of the external electric field (E ext ) on graphene oxide (GO) layer to improve and optimize its electronic and optical properties, as a result to enhance optoelectronic device technology applications. A three-dimensional E ext applied on GO will be examined using the density functional theory (DFT). The E ext causes significant modifications to the electronic and optical properties of GO. When increasing the E ext , a global increase is noted in the bandgap in the x- and y-directions. As for the z-direction, the bandgap energy of GO decreases for an increasing E ext . The absorption coefficient (α) peaks intensities decreased in both visible and ultraviolet (UV) ranges by the effect of the E ext applied in the x-direction, and were increased when the E ext is applied in the y- and z-directions. It was found that, the electronic and optical properties of GO material, could be controlled by the effects of the E ext and by its direction. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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