Production and characterization of smooth, hydrogen-terminated diamond C(100)

Thoms, Brian D.; Owens, Michael S.; Butler, James E.; Spiro, Clifford L.

doi:10.1063/1.112503

Cited by 122 publications

(73 citation statements)

References 13 publications

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“…Acid treatments: Hydrogen plasma treatment (Thoms et al 1994;Strother et al 2002;Knickerbocker et al 2003) -Nitric and sulphuric acid (Kong et al 2005a;Huang and Chang 2004;Liu et al 2008;Chao et al 2007;Ushizawa et al 2002) Annealing in hydrogen gas (Härtl et al 2004;Christiaens et al 2006;Saini et al 2008) -Nitric acid Huang et al 2008;Sushchev et al 2008;Mitev et al 2007) Water vapour treatment (Ando et al 1996a) -Hydrochloric acid (Kossovsky et al 1995;Mitev et al 2007) Borane (BH3) (Krüger et al 2006;Neugart et al 2007;Liang et al 2009;Zhang et al 2009b) -Perchloric acid (Xu et al 2005) -Potassium dichromate and sulphuric acid (Mitev et al 2007) -Sulfuric acid and potassium permanganate (Xu et al 2005) Annealing in:…”

Section: Oxidation/carboxylation Reductionmentioning

confidence: 99%

Luminescent nanodiamonds for biomedical applications

et al. 2011

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In recent years, nanodiamonds have emerged from primarily an industrial and mechanical applications base, to potentially underpinning sophisticated new technologies in biomedical and quantum science. Nanodiamonds are relatively inexpensive, biocompatible, easy to surface functionalise and optically stable. This combination of physical properties are ideally suited to biological applications, including intracellular labelling and tracking, extracellular drug delivery and adsorptive detection of bioactive molecules. Here we describe some of the methods and challenges for processing nanodiamond materials, detection schemes and some of the leading applications currently under investigation.

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Section: Oxidation/carboxylation Reductionmentioning

confidence: 99%

Luminescent nanodiamonds for biomedical applications

et al. 2011

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“…Therefore, prior to FvL measurements, the diamond sample is cleaned in an acid bath and H-terminated in a H 2 plasma. 14,15 This procedure produces a chemically inert, C-H bonded surface with a water contact angle of 85°-87°. Figure 6͑a͒ shows a 500ϫ 500 nm 2 AFM topograph of the diamond C͑111͒-H surface.…”

Section: Compensation For In-plane Tip-sample Displacementmentioning

confidence: 99%

Cantilever tilt compensation for variable-load atomic force microscopy

Cannara

Brukman

Carpick

2005

Review of Scientific Instruments

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In atomic force microscopy ͑AFM͒, typically the cantilever's long axis forms an angle with respect to the plane of the sample's surface. This has consequences for contact mode experiments because the tip end of the cantilever, which is constrained to move along the surface, displaces longitudinally when the applied load varies. As a result, the AFM tip makes contact with a different point on the surface at each load. These different positions lie along the projection of the lever's long axis onto the surface. When not constrained by static friction, the amount of tip-displacement is, to first order, proportional to the load and is shown to be substantial for typical AFM and cantilever geometries. The predictions are confirmed experimentally to within 15% or better. Thus, care should be taken when performing load-dependent contact mode experiments, such as friction versus load, elasticity versus load, or force versus displacement measurements, particularly for heterogeneous or topographically-varying samples. We present a simple method to reliably and precisely compensate for in-plane tip displacement that depends only on the range of vertical motion used to vary the load. This compensation method should be employed in any load-varying AFM experiment that requires the tip to scan the same line or to remain at the same point at each load.

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“…13 Hydrogen plasma etching makes it possible to obtain atomic flatness on the (100) crystal faces of chemical vapor-deposited (CVD) polycrystalline diamond films. 14 Atomically flat surfaces were observed after the hydrogen plasma etching of homoepitaxial CVD diamond films.…”

Section: Introductionmentioning

confidence: 99%

“…32 A fully hydrogenated C(100)-(2×1):H surface corresponds to a structure in which each of the symmetric surface dimer atoms binds with a single hydrogen atom. 13,33 In this paper, the authors use quantum chemistry methods to investigate the chemical interaction of hydrogen, oxygen, methylene and carbon monoxide with point defects on the reconstructed hydrogenated diamond surface C(100)-(2×1): a single vacancy, a divacancy and an adatom. The selected types of point defects are analogues of the larger-scale surface irregularities -valleys and peaks -interacting with an active gas environment.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen and Oxygen Atoms Interaction with the Point Defects on the C(100):H Diamond Surface

PonomarevOleg

LvovaNatalia

RyazanovaAnna

2017

Surface Innovations

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This paper presents the results of quantum-chemical calculations of the adsorption and desorption activation energy bonding energy and the results of the interactions between particles (hydrogen (H), oxygen (O), methylene (CH 2 ) and carbon monoxide (CO)) with point defects on a reconstructed hydrogenated diamond surface C(100)-(2×1): a monovacancy, a divacancy and an adatom. The paper describes the most probable single acts of etching and restoration of an ordered surface. It is shown that the most likely single etching acts among the considered processes are the formation of carbon monoxide molecules from adatoms and oxygen from the gas phase. The most effective process of restoring an ordered surface is the attachment of methylene molecules to divacancy defects. It is assumed that some 'empty' dimer rows are formed as a result of surface vacancy defect etching. The results can be used to analyze the physical and chemical processes on the diamond surface during reactive ion etching using hydrogen-/oxygen-based plasma. NotationE act adsorption activation energy E b bond energy (heat of adsorption) E cl energy of the diamond cluster E des desorption activation energy E p energy of an isolated particle E saddle saddle point of the reaction coordinate E sys energy of the diamond cluster with adsorbed particle DE change in the total energy of the surface + particle system

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Production and characterization of smooth, hydrogen-terminated diamond C(100)

Cited by 122 publications

References 13 publications

Luminescent nanodiamonds for biomedical applications

Luminescent nanodiamonds for biomedical applications

Cantilever tilt compensation for variable-load atomic force microscopy

Hydrogen and Oxygen Atoms Interaction with the Point Defects on the C(100):H Diamond Surface

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