Charge transport measurements in compressed bulk graphene oxide
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Boateng Onwona-Agyeman
Abstract
Charge transport measurements in compressed bulk graphene oxide (GO) have been studied within the temperature range 15-450 K. Structural properties and surface morphologies of the bulk compressed GO were studied using X-ray diffraction and transmission electron microscopy. Raman and X-ray photoelectron spectroscopies were also used to confirm the presence of graphitic phases and the various functional groups in the GO, respectively. Current-voltage characteristics of the GO measured with gold (Au) electrodes at different temperatures showed no Schottky barrier at the Au/GO interface. At low temperatures and low bias voltages, the electron transport through the compressed GO sample showed no significant voltage dependence, which is consistent with a direct tunneling mechanism at all the bias voltages (0.01 -1.0 V). It was also observed that no Fowler- Nordheim transport mechanism occurred within this bias voltage range.
© 2020 by Walter de Gruyter Berlin/Boston
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- Notifications
- DGM
- CONFERENCES
- Imprint
Articles in the same Issue
- CONTENTS
- Original Contributions
- Low temperature and pressureless synthesis of MgAlON: qualitative analysis and formation evolution
- Electrical and optical studies on tungsten-substituted bismuth molybdates
- Charge transport measurements in compressed bulk graphene oxide
- Fabrication and characterization of Yb-doped Y2O3 powders and thin films
- An investigation of oxidation, hot corrosion, and thermal shock behavior of atmospheric plasma-sprayed YSZ–Al2O3 composite thermal barrier coatings
- Electrolytic synthesis of ZrSi/ZrC nanocomposites from ZrSiO4 and carbon black powder in molten salt
- Laser additive manufacturing of copper– chromium–niobium alloys using gas atomized powder
- On the evaluation of the constrained studded pressing method for producing nanocrystalline copper sheets
- Glass formation, nanocrystallisation and magnetic properties of the (Fe1–xCox)79Nb3B18 (x = 0, 0.15, 0.3, 0.45, 0.6, 0.75) metallic glasses
- Effect of TiC on coarsening and macrosegregation of Al–Bi alloys
- Notifications
- DGM
- CONFERENCES
- Imprint
