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Nanodiamonds for device applications: An investigation of the properties of boron-doped detonation nanodiamonds

Afandi, A; Howkins, A; Boyd, IW; Jackman, RB; (2018) Nanodiamonds for device applications: An investigation of the properties of boron-doped detonation nanodiamonds. Scientific Reports , 8 , Article 3270. 10.1038/s41598-018-21670-w. Green open access

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Abstract

The inclusion of boron within nanodiamonds to create semiconducting properties would create a new class of applications in the field of nanodiamond electronics. Theoretical studies have differed in their conclusions as to whether nm-scale NDs would support a stable substitutional boron state, or whether such a state would be unstable, with boron instead aggregating or attaching to edge structures. In the present study detonation-derived NDs with purposefully added boron during the detonation process have been studied with a wide range of experimental techniques. The DNDs are of ~4 nm in size, and have been studied with CL, PL, Raman and IR spectroscopies, AFM and HR-TEM and electrically measured with impedance spectroscopy; it is apparent that the B-DNDs studied here do indeed support substitutional boron species and hence will be acting as semiconducting diamond nanoparticles. Evidence for moderate doping levels in some particles (~1017B cm-3), is found alongside the observation that some particles are heavily doped (~1020B cm-3) and likely to be quasi-metallic in character. The current study has therefore shown that substitutional boron doping in nm NDs is in fact possible, opening-up the path to a whole host of new applications for this interesting class of nano-particles.

Type: Article
Title: Nanodiamonds for device applications: An investigation of the properties of boron-doped detonation nanodiamonds
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1038/s41598-018-21670-w
Publisher version: https://doi.org/10.1038/s41598-018-21670-w
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/10044237
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