A fundamental study on the electronic and optical properties of graphene oxide under an external electric field

Abstract

In this work, we study the impact of the external electric field [Formula: see text] 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 [Formula: see text] applied on GO will be examined using the density functional theory (DFT). The [Formula: see text] causes significant modifications to the electronic and optical properties of GO. When increasing the [Formula: see text], 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 [Formula: see text]. The absorption coefficient ([Formula: see text]) peaks intensities decreased in both visible and ultraviolet (UV) ranges by the effect of the [Formula: see text] applied in the x-direction, and were increased when the [Formula: see text] 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 [Formula: see text] and by its direction.

A Narrative Review on the Promising Potential of Graphene in Vaccine Design: Evaluating the Benefits and Drawbacks of Carbon Nanoplates in Nanovaccine Production

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Optimizing Lead-free MASnBr3 Perovskite Solar Cells for High-Efficiency and Long-Term Stability Using Graphene and Advanced Interface Layers

“…Perovskite solar cells (PSCs) have emerged as a promising substitute for conventional silicon (Si)-based devices, primarily due to their exceptional performance, cost effectiveness, and possible scalability . PSCs’ remarkable PV capabilities can be attributed to their outstanding optoelectronic characteristics, fine-tuned alignment of a finely tuned energy band, and refined interface characteristics . Nonetheless, the enduring durability of perovskite devices remains a point of contention as they experience degradation faster than conventional cells, necessitating more frequent replacement.…”

“…1 PSCs' remarkable PV capabilities can be attributed to their outstanding optoelectronic characteristics, fine-tuned alignment of a finely tuned energy band, and refined interface characteristics. 2 Nonetheless, the enduring durability of perovskite devices remains a point of contention as they experience degradation faster than conventional cells, necessitating more frequent replacement. The effectiveness of PSCs is intricately tied to the stability and efficiency of the solar cell's charge transportation and light absorption mechanisms.…”