Hydrogen and oxygen chemistry and dynamics in diamond studied by nuclear microscopic techniques

Sideras‐Haddad, E.; Connell, S. H.; Sellschop, J.P.F.; Machi, I.Z.; Rebuli, D.B.; Maclear, R.D.; Doyle, B.P.

doi:10.1016/s0168-583x(01)00595-x

Cited by 12 publications

(7 citation statements)

References 19 publications

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“…Schneider et al [29] of the activation energy for the migration of different hydrogen species (H + , H 0 , and H − ) and their muon analogs have not been confirmed by any experimental results: annealing at 1200°C was reported to produce no detectable changes in the distribution of muons in diamond [30]. Recent work by Saguy et al [31] has shown that hydrogen diffuses most rapidly in diamond heavily doped with boron; in other diamond materials, hydrogen is trapped at defects, and its diffusion rate drops sharply.…”

Section: Resultsmentioning

confidence: 95%

Hydrogenated Nanoporous Diamond Films

et al. 2005

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Nanoporous diamond films up to 20 µ m thick with a pore size of 1-1.5 nm and porosities from 0.4 to 0.6 are produced by selective etching in air. The effect of hydrogen plasma processing on the IR absorption and electron paramagnetic resonance spectra of the films is investigated. The results indicate that the concentration of bonded hydrogen in the hydrogenated nanoporous diamond films attains 20 at %. The kinetics of hydrogen desorption are studied as a function of temperature.

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Section: Resultsmentioning

confidence: 95%

Hydrogenated Nanoporous Diamond Films

et al. 2005

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“…Nuclear reaction analysis has shown that hydrogen is a common impurity in many types of diamonds with concentrations of 500-3500 ppm in natural diamond, 200-900 ppm in highpressure-high-temperature (HPHT) grown diamonds, but below the detection limit ∼50 ppm in chemical vapour deposition (CVD) grown diamond [1]. The relative sparsity of hydrogen in CVD diamond, grown under a hydrogen plasma, is surprising but can be understood if hydrogen was trapped at defects or inclusions in natural and HPHT diamonds which do not exist in high quality single-crystal CVD films.…”

Section: Introductionmentioning

confidence: 99%

Identification of the structure of the 3107 cm⁻¹H-related defect in diamond

Goss

Briddon

Hill

et al. 2014

J. Phys.: Condens. Matter

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A prominent hydrogen-related infrared absorption peak seen in many types of diamonds at 3107 cm(-1) has been the subject of investigation for many years. It is present in natural type-Ia material and can be introduced by heat-treating synthetic or CVD diamond. Based upon the most recent experimental data, it is thought that the defect giving rise to this vibrational mode is vacancy-related and is likely to contain nitrogen. Using first-principles simulations we present a VN3H model for the originating centre that simultaneously satisfies the different experimental observations including the strain response.

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“…Hydrogen is a common impurity in many types of diamond, with concentrations in excess of 1000 ppm reported in natural diamonds, 406 in the range 200−900 ppm for HPHT grown samples, but typically <50 ppm in CVD-grown single-crystal diamond. 407 These relative values might appear surprising, given that H 2 is the dominant source gas used in the CVD process, but can be understood if the hydrogen is trapped at defects or inclusions in natural and HPHT samples (which do not exist in good quality SCD films). In this and the following section, we summarize current knowledge relating to the structure, properties, and interconversion of defects in diamond that contain both N and H.…”

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Nitrogen in Diamond

et al. 2020

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Nitrogen is ubiquitous in both natural and laboratory-grown diamond, but the number and nature of the nitrogen-containing defects can have a profound effect on the diamond material and its properties. An ever-growing fraction of the supply of diamond appearing on the world market is now lab-grown. Here, we survey recent progress in two complementary diamond synthesis methodshigh pressure high temperature (HPHT) growth and chemical vapour deposition (CVD), how each is allowing ever more precise control of nitrogen incorporation in the resulting diamond, and how the diamond produced by either method can be further processed (e.g. by implantation and/or annealing) to achieve a particular outcome or property. The burgeoning availability of diamond samples grown under well-defined conditions has also enabled huge advances in the characterization and understanding of nitrogen-containing defects in diamondalone, and in association with vacancies, hydrogen and transition metal atoms. Amongst these, the negatively charged nitrogen-vacancy (NV −) defect in diamond is attracting particular current interest on account of the many new and exciting opportunities it offers for, e.g., quantum technologies, nanoscale magnetometry and biosensing. 2 Laboratory Based Synthesis of Diamond and Nitrogen-Containing Diamond 2.1 High Pressure High Temperature (HPHT) Methods. Nature was the inspiration for the HPHT method, by which diamond growth was demonstrated by Swedish company ASEA in 1953 (though not reported at that time) and subsequently by US company General Electric in 1955. 14 , 15 Most present-day HPHT synthesis exploits the temperature-gradient growth (TGG) method developed later in that decade. 16 However, it took many further years before the design and control of HPHT reactors yielded diamonds of

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Hydrogen and oxygen chemistry and dynamics in diamond studied by nuclear microscopic techniques

Cited by 12 publications

References 19 publications

Hydrogenated Nanoporous Diamond Films

Hydrogenated Nanoporous Diamond Films

Identification of the structure of the 3107 cm⁻¹H-related defect in diamond

Nitrogen in Diamond

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Hydrogen and oxygen chemistry and dynamics in diamond studied by nuclear microscopic techniques

Cited by 12 publications

References 19 publications

Hydrogenated Nanoporous Diamond Films

Hydrogenated Nanoporous Diamond Films

Identification of the structure of the 3107 cm−1H-related defect in diamond

Nitrogen in Diamond

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Identification of the structure of the 3107 cm⁻¹H-related defect in diamond