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Data for Assessment of acid and thermal oxidation treatments for removing sp2 bonded carbon from the surface of boron doped diamond
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Cobb, Samuel J., Laidlaw, Fraser, West, Geoffrey D., Wood, Georgia F., Newton, Mark E., Beanland, Richard and Macpherson, Julie V. (2020) Data for Assessment of acid and thermal oxidation treatments for removing sp2 bonded carbon from the surface of boron doped diamond. [Dataset]
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Plain Text (Readme file)
TEM and EELS Dataset readme.txt - Published Version Available under License Creative Commons Attribution 4.0. Download (4Kb) |
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Archive (ZIP) (Zip archive)
Laidlaw WRAP.zip - Published Version Available under License Creative Commons Attribution 4.0. Download (605Mb) |
Abstract
The presence of sp2 bonded carbon on a diamond or doped diamond surface, as a result of growth or processing, can affect material properties negatively, hence removal processes must be developed. Using boron doped diamond (BDD) we investigate the effectiveness of different removal methods via electrochemistry and transmission electron microscopy. We focus on two BDD surfaces, one processed by ns laser micromachining and the second which contains sp2 bonded carbon as a result of chemical vapour deposition (CVD) growth. After micromachining a layer of ordered graphite sits on the BDD surface, topped by fissured amorphous carbon (total thickness ~ μm). Oxidative acid treatment at elevated temperature cannot remove all the sp2 bonded carbon and much smaller clusters of perpendicularly-orientated graphite (tens of nm in diameter), capped with a thinner layer of amorphous carbon – that we term “denatured graphite” – remain. In contrast, thermal oxidation in air at 600 °C is capable of all cluster removal, and can also be used to remove sp2 bonded carbon from as-grown CVD-grown BDD. Such understanding is important to any application where sp2 bonded surface carbon resulting from CVD growth or laser processing is detrimental for the intended application, e.g. in diamond quantum technology, photonics and electrochemistry.
| Item Type: | Dataset | |||||||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry Q Science > QH Natural history T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
| Type of Data: | Experimental data | |||||||||
| Library of Congress Subject Headings (LCSH): | Diamonds -- Surfaces, Semiconductor doping, Boron, Micromachining, Amorphous substances, Oxidation, Carbon, Transmission electron microscopy, Scanning transmission electron microscopy, Electron energy loss spectroscopy, Surfaces (Technology) -- Analysis | |||||||||
| Publisher: | University of Warwick, Department of Physics | |||||||||
| Official Date: | 27 July 2020 | |||||||||
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| Status: | Not Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Media of Output (format): | .7z, .dm4, .txt | |||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||
| Copyright Holders: | University of Warwick | |||||||||
| Description: | Data record consists of a zip archive, containing the raw data files in .dm4 format, and an accompanying readme file. |
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| Date of first compliant deposit: | 27 July 2020 | |||||||||
| Date of first compliant Open Access: | 27 July 2020 | |||||||||
| RIOXX Funder/Project Grant: |
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