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Nitrogen vacancy (NV−) centers possess exceptional sensitivity to magnetic field even under ambient condition. The optically detectable electron spins and the atomic size make it a promising candidate for advanced magnetic resonance imaging (MRI) technique with nanoscale spatial resolution. In this work, diamond particles with NV− centers were deposited by microwave plasma chemical vapor deposition...
Both conventional graphite and emerging new anode materials, such as silicon based anodes for lithium ion batteries have been coated with nitrogen-incorporated ultrananocrystalline diamond, graphene, and their hybrids. Novel micro- and nano-structures of the anodes enable the LIBs to survive repetitive charging and discharging by much higher number of cycles than those anodes without such innovative...
This paper reports on the preparation and evaluation of fluorinated nano diamond (FND) for application of polymer composite. The fluorination of the nano diamond (ND) not only removes the impurities carbon layers of ND surface but also improves the solvent dispersibility of ND. ND and FND were successfully fabricated by composite of epoxy resin. Especially, FND was well-dispersed in the epoxy matrix...
Polycrystalline diamond (PCD) films prepared by chemical vapor deposition (CVD) can improve surface properties of hard materials. In this study, the growth rates of PCD film prepared by hot-filament CVD have been investigated on the influence of CH4 concentration. Tribological properties of PCD films on sintered SiC substrates were investigated for application on the mechanical seals of pumps. The...
In this paper, thin film diamond resonators on Si wafer for high sensitivity force sensing have been developed. Patterned diamond structures have been formed on Ir/YSZ/Si substrate. The completed diamond resonator of cantilever shows a resonance frequency of 51.0 kHz with a quality factor of 14911. The both clamped resonator shows the force sensitivity of 3.36×10−13 N/Hz0.5 at 229.3 kHz with 23500...
Nanoscale electronic devices will require the placement of dopants in a predetermined location, namely, a single atom control to explore novel functions for future nanoelectronics. Deterministic doping method, i.e. single-ion implantation, realizes ordered arrays of single-atoms in silicon, diamond and other materials, which might provide opportunities to single-dopant transport or single-photon source...
Water lubrication has been attracting attention for environment-friendly society due to low CO2 emission. Furthermore, carbon-based materials such as diamond-like carbon (DLC) show the low friction properties in water lubrication due to the oxidation reaction on the surface in pre-sliding. However, the influence of oxidation reactions on low friction mechanism is still unclear. In this study, we clarify...
A modeling framework, previously applied to magnetic field sensing in a quantum biological system, is extended here to study the optical and spin dynamics of the diamond nitrogen-vacancy (NV−) center. This points the way towards diamond-based precision magnetometry.
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