ChemInform Abstract: Chemical Vapor Deposition of Diamond

Angus, John C.; Argoitia, Alberto; Gat, R.; Li, Z.; Sunkara, Mahendra; Wang, L.; Wang, Y.

doi:10.1002/chin.199331344

Cited by 2 publications

(2 citation statements)

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“…These studies were successfully continued with synthetic diamonds, grown by the high pressure high temperature method (HPHT) [16]. However, it was not until major advances had been made related to the chemical vapor deposition (CVD) production process before the diamond-based detector technology became more readily available [17,18]. Regarding latest production advances such as the reduction of residual impurities (i.e., nitrogen and boron), available single-crystal sample sizes, and favorable price developments, electronic grade single-crystal CVD (escCVD) diamond [19] has been increasingly applied in nuclear spectrometry ever since.…”

Section: Introductionmentioning

confidence: 99%

Diamond detectors for high-temperature transactinide chemistry experiments

Steinegger

Dressler

Eichler

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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Here, we present the fabrication details and functional tests of diamondbased α-spectroscopic sensors, dedicated for high-temperature experiments, targeting the chemistry of transactinide elements. Direct heating studies with this sensor material, revealed a current upper temperature threshold for a safe α-spectroscopic operation of T det = 453 K. Up to this temperature, the diamond sensor could be operated in a stable manner over long time periods of the order of days. A satisfying resolution of ≈ 50 keV FWHM was maintained throughout all conducted measurements. However, exceeding the mentioned temperature limit led to a pronounced spectroscopic degradation in the range of 453 − 473 K, thereby preventing any further αspectroscopic application. These findings are in full agreement with available literature data. The presented detector development generally enables the chemical investigation of more short-lived and less volatile transactinide elements and their compounds, yet unreachable with the currently employed silicon-based solid state sensors. In a second part, the design, construction, and α-spectroscopic performance of a 4-segmented diamond detector, dedicated and used for transactinide element research, is given as an application example.

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Section: Introductionmentioning

confidence: 99%

Diamond detectors for high-temperature transactinide chemistry experiments

Steinegger

Dressler

Eichler

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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“…When supplying sufficient atomic hydrogen compared to carbon, only diamond is growing. The atomic hydrogen suppresses the formation of non-diamond phases, due to of kinetic and catalytic processes hindering the formation of sp 2 -bonds and favoring the formation of sp 3 -bonds [4]. Additionally, the at.H to carbon ratio is influencing the diamond morphology and also its quality [5].…”

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confidence: 99%

Diamond Coatings on Carbon Based Substrates

Haubner

Lessiak

2015

MSF

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Diamond deposition on carbon substrates is difficult, because atomic hydrogen needed for the diamond growth, attacks the graphitic and amorphous carbon of the substrate. To reduce the etching effect, the duration till diamond layer formation should be short.By controlling the diamond deposition conditions, boron addition and seeding with diamond prior to the deposition, the formation of diamond coatings is possible.Diamond coated carbon substrates are of high interest for electrochemical applications because they show electrical conductivity and are chemically inert in a wide range. Boron doped diamond shows high overvoltage for hydrogen and oxygen and allows electrochemical reactions in water without decomposing it. Diamond was deposited on glassy carbon and electro-graphite.

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ChemInform Abstract: Chemical Vapor Deposition of Diamond

Abstract: Chemical Vapor Deposition of Diamond -(61 refs.). -(ANGUS, J. C.; ARGOITIA, A.; GAT, R.; LI, Z.; SUNKARA, M.; WANG, L.; WANG, Y.; Philos.

Cited by 2 publications

References 1 publication

Diamond detectors for high-temperature transactinide chemistry experiments

Diamond detectors for high-temperature transactinide chemistry experiments

Diamond Coatings on Carbon Based Substrates

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