Photoreduction Dependent p‐ and n‐Type Semiconducting Field‐Effect Transistor Properties in Undoped Reduced Graphene Oxide

Abstract

Both p‐ and n‐type field effect transistors (FET) properties have been observed in undoped reduced graphene oxide (rGO). Short and long time exposure of GO during photo reduction results in the formation of respective p‐ and n‐type rGO semiconductor. Achieving duel behavior of this type in an undoped material is exceedingly unusual. Herein we report the presence of such behavior in the reduced from of graphene oxide (rGO) for the first time.

SARS-CoV-2 suppression depending on the pH of graphene oxide nanosheets

“…The characteristic peaks for oxygenated functional groups include hydroxyl (C-OH), epoxy (C-O-C), carbonyl (-C] O), and carboxyl (-COOH) groups with peak intensity approximately at 286.4-286.6 eV, 286.8-287.0 eV, 287.8-288.0 eV and 289.0-289.3 eV, respectively. 21 Clearly, the peak intensity at 286.8-287.0 eV corresponding to the epoxy group is much higher in GO (3) compared to that of GO (11) indicating the presence of a large number of epoxy (C-O-C) groups in GO (3).…”

Branched Alkylamine–Reduced Graphene Oxide Hybrids as a Dual Proton–Electron Conductor and Organic-Only Water-Splitting Photocatalyst

“…Previously, we observed that N-doped rGO and several metal-doped graphite possess some intrinsic semiconducting behavior. 53,54 The high H 2 generation efficiency of the samples are in correlation with their physical state, morphology, and energy harvesting property. Photocatalytic splitting of H 2 O molecules on the semiconductor photocatalyst were reported first by Fujishima and Honda.…”

Crystallization of Diamond from Graphene Oxide Nanosheets by a High Temperature and High Pressure Method

“…Over recent decades, GO‐based materials have been demonstrated to have widespread applications in chemistry, physics, biology, electronics, engineering, and medicine. For example, particular GO materials have been demonstrated to display proton conduction, semi‐conductivity, light emission, and to act as catalysts [9–14] . They have also been used for drug delivery as well as for sensor and transistor fabrication [15,16] .…”

“…For example, particular GO materials have been demonstrated to display proton conduction, semi-conductivity, light emission, and to act as catalysts. [9][10][11][12][13][14] They have also been used for drug delivery as well as for sensor and transistor fabrication. [15,16] In the current work we were successful in achieving a phase transition of pure GO to diamond by the high temperature/ high pressure method using a 2000-ton Kawai type multi-anvil apparatus (Ehime University ORANGE-2000).…”