A. Hadjikhani, J. Chen, S. Das, W. Choi, Raman spectroscopy of graphene and plasma treated graphene under high pressure, in Supplemental Proceedings: Materials Properties, Characterization, and Modeling, Vol. 2, John Wiley & Sons, Inc., Hoboken, NJ, 2012, 75....
Understanding the transition from sp2 to sp3 bonding between graphene layers remains a challenge for the development of thin diamond films. Herein, in situ Raman spectroscopy is used to trace the s... 中文翻译: 高压下双层石墨烯中sp2到sp3跃迁的拉曼光谱研究 理解石墨烯层之间从 sp2 到 sp3 ...
Microelectromechanical system (MEMS) pressure sensors offer several advantages, including ease of batch production, miniaturization, cost-effectiveness, and the capability to readily fabricate complex structures. Therefore, they occupy an increasingly larger share of the pressure sensor market. Over the past...
g SEM image of the lateral surface of the emitter. Scale bar, 5 µm Full size image To confirm that the Ni cathode wire is covered with graphene after the CVD process, energy-dispersive X-ray spectroscopy (EDS) was employed to examine the chemical composition of the grown film. ...
Molecular dynamics simulations suggest that the high pressure of 35 GPa and the high temperature of 3,000K result in the metaphase transition of graphite to nanodiamonds within 100 ps. A high concentration of NV centers is observed at the optimal laser energy of 3.82 GW/cm2, at which point ...
Graphene/ferroelectrics/graphene hybrid structure: Asymmetric doping of graphene layers This concept was confirmed by Raman spectroscopy using graphene/poly(vinylidenefluoride-co-trifluoroethylene)(P(VDF-TrFE))/graphene hybrid, which can easily ... DL Duong,SY Lee,SK Kim,... - 《Applied Physics Lett...
A sequence of chemical modifications was performed on natural graphite flakes from initial oxidation, producing graphene oxide (GO), followed by thermally-reduced graphene expansion (GE) to a final sonic exfoliation forming nanoparticles (GES). Employing Raman spectroscopy, it is found that the graphit...
Raman spectroscopy can be used to monitor the number of single quintuple layers in nanostructured Bi2 Te3 , as in graphene.45 Theoretical studies of the lattice dynamics of Bi2 Te3 at room pressure have also been performed;46–49 however, Raman measurements at high pressures have only been ...
Superlubricity of graphite and graphene has aroused increasing interest in recent years. Yet how to obtain a long-lasting superlubricity between graphene layers, under high applied normal load in ambient atmosphere still remains a challenge but is highly
This work presents a nanoporous graphene-based thin-film technology and its engineering to form flexible neural interfaces. The developed technology allows the fabrication of small microelectrodes (25 µm diameter) while achieving low impedance (∼25 kΩ) and high charge injection (3–5 ...