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Microwave Conductivity of Boron-Doped Nanodiamond Particles

MetadataDetails
Publication Date2022-11-29
Journal2022 Asia-Pacific Microwave Conference (APMC)
AuthorsJerome A. Cuenca, S. Sugai, Shunsuke Nakamura, Yudai Miyake, David Morgan
InstitutionsTokyo University of Science, Cardiff University
Citations1

Boron doped diamond particles (BDDP) have been investigated using dielectric spectroscopy from 100 Hz to 10 GHz using a combination of microwave cavity perturbation and the broadband coaxial probe method. Raman and x-ray photoelectron spectroscopy demonstrate that the BDDP consist of both diamond and a considerable concentration of non-diamond carbon. The electrical conductivity increases with the boron to carbon (B/C) ratio in the fabrication process. The microwave complex permittivity also increases with increasing B/C ratio from, with loss tangent increasing from 0.4 to as large as unity, demonstrating the potential for BDDP in tuneable microwave absorber additives.

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