Quasi homoepitaxial growth of modified diamond: Nickel-substrate catalytic multilayer graphene transforming to diamond

A routine procedure for growing very thin graphite substrate films has been developed. The films are grown pyrolytically in an ultra-high vacuum chamber by exposing (111) epitaxial nickel films to carbon monoxide gas. The nickel serves as a catalyst for the disproportionation of CO through the reaction 2C0 → C + CO2. The nickel catalyst is prepared by evaporation onto artificial mica at 400°C and annealing for 1/2 hour at 600°C in vacuum. Exposure of the annealed nickel to 1 torr CO for 3 hours at 500°C results in the growth of very thin continuous graphite films. The graphite is stripped from its nickel substrate in acid and mounted on holey formvar support films for use as specimen substrates.The graphite films, self-supporting over formvar holes up to five microns in diameter, have been studied by bright and dark field electron microscopy, by electron diffraction, and have been shadowed to reveal their topography and thickness. The films consist of individual crystallites typically a micron across with their basal planes parallel to the surface but oriented in different, apparently random directions about the normal to the basal plane.

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The Microstructure of Nickel Oxide Scales

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100097144 ◽

1981 ◽

Vol 39 ◽

pp. 86-87

Author(s):

M. T. Tinker ◽

L. W. Hobbs

Keyword(s):

Electron Microscopy ◽

Nickel Oxide ◽

Ion Beam ◽

Oxide Scales ◽

Nickel Substrate ◽

Outward Diffusion ◽

Transmission Electron ◽

Nickel Substrates ◽

Nickel Base ◽

Technological Interest

There is considerable technological interest in oxidation of nickel because of the importance of nickel-base superalloys in high-temperature oxidizing environments. NiO scales on nickel grow classically, by outward diffusion of nickel through the scale, and are among the most studied of oxidation systems. We report here the first extensive characterization by transmission electron microscopy of nickel oxide scales formed on bulk nickel substrates and sectioned both parallel and transversely to the Ni/NiO interface.Electrochemically-polished nickel sheet of 99.995% purity was oxidized at 1273 K in 0.1 MPa oxygen partial pressure for times between 5 s and 25 h. Parallel sections were produced using a combination of electropolishing of the nickel substrate and ion-beam thinning of the scale to any desired depth in the scale. Transverse sections were prepared by encasing stacked strips of oxidized nickel sheet in epoxy resin, sectioning transversely and ion-beam thinning until thin area spanning one or more interfaces was obtained.

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SOLIDIFICATION OF MOLTEN TIN DROP ON A NICKEL SUBSTRATE

Proceeding of International Heat Transfer Conference 10 ◽

10.1615/ihtc10.1630 ◽

1994 ◽

Cited By ~ 2

Author(s):

T. Loulou ◽

E.A. Artyukhin ◽

Jean Pierre Bardon

Keyword(s):

Nickel Substrate

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Elastic recovery induced strengthening effect in copper/ multilayer-graphene interface regions revealed by instrumental nanoindentation

Composites Part B Engineering ◽

10.1016/j.compositesb.2021.108832 ◽

2021 ◽

pp. 108832

Author(s):

Xueliang Wang ◽

Yang Su ◽

Songyang Han ◽

Martin A. Crimp ◽

Yaping Wang ◽

...

Keyword(s):

Elastic Recovery ◽

Multilayer Graphene ◽

Strengthening Effect ◽

Graphene Interface

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Multilayer graphene supported flexible optoelectronic devices

10.3390/iocn2020-07900 ◽

2020 ◽

Author(s):

Vera Marinova ◽

Stefan Petrov ◽

Blagovest Napoleonov ◽

Jordan Mickovski ◽

Dimitrina Petrova ◽

...

Keyword(s):

Optoelectronic Devices ◽

Multilayer Graphene

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Vertical monolithic integration of wide- and narrow-bandgap semiconductor nanostructures on graphene films

NPG Asia Materials ◽

10.1038/s41427-021-00301-3 ◽

2021 ◽

Vol 13 (1) ◽

Author(s):

Youngbin Tchoe ◽

Janghyun Jo ◽

HoSung Kim ◽

Heehun Kim ◽

Hyeonjun Baek ◽

...

Keyword(s):

Graphene Film ◽

Monolithic Integration ◽

Hybrid Nanostructures ◽

Dual Wavelength ◽

Multilayer Graphene ◽

Graphene Films ◽

Transmission Electron ◽

Zno Nanotubes ◽

Metal Organic ◽

Hybrid Configuration

AbstractWe report monolithic integration of indium arsenide (InAs) nanorods and zinc oxide (ZnO) nanotubes using a multilayer graphene film as a suspended substrate, and the fabrication of dual-wavelength photodetectors with the hybrid configuration of these materials. For the hybrid nanostructures, ZnO nanotubes and InAs nanorods were grown vertically on the top and bottom surfaces of the graphene films by metal-organic vapor-phase epitaxy and molecular beam epitaxy, respectively. The structural, optical, and electrical characteristics of the hybrid nanostructures were investigated using transmission electron microscopy, spectral photoresponse analysis, and current–voltage measurements. Furthermore, the hybrid nanostructures were used to fabricate dual-wavelength photodetectors sensitive to both ultraviolet and mid-infrared wavelengths.

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