期刊
APPLIED PHYSICS LETTERS
卷 96, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3446966
关键词
detonation; diamond; dielectric losses; electrical conductivity; electrical resistivity; nanoparticles
资金
- U.K. Engineering and Physical Sciences Research Council (EPSRC) [EP/F026110/1]
- Engineering and Physical Sciences Research Council [EP/F026110/1, EP/H020055/1] Funding Source: researchfish
- EPSRC [EP/H020055/1, EP/F026110/1] Funding Source: UKRI
The electrical properties of monodispersed detonation nanodiamonds (DNDs) have been studied; a resistivity of the order of 10(12) Omega/sq has been determined, with only one significant conduction pathway being observed. The dielectric character of the DND particles is also good, with dielectric loss tangent values in the range 0.05-0.5 being recorded. These combined observations suggest DNDs behave in electrical terms similar to thin film diamond, and that electrical applications for DNDs are worthy of pursuit. Since a simple room temperature sonication process has been used for their deposition, coating a wide-range of three-dimensional substrate materials will be possible. A limitation on the electrical use the monodispersed DNDs, at least in the untreated, as-deposited from solution form used here, is the catastrophic loss of diamond-like character at temperatures above 400 degrees C. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3446966]
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