Electrical properties of aggregated detonation nanodiamonds

被引：20

作者：

Bevilacqua, Mose ^{[1
]}

Patel, Sameer ^{[1
]}

Chaudhary, Aysha ^{[1
]}

Ye, Haitao ^{[1
]}

Jackman, Richard B. ^{[1
]}

机构：

[1] UCL, London Ctr Nanotechnol, London WC1H 0AH, England

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 13期

关键词：

D O I：

10.1063/1.2996026

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanometer-scale diamonds formed using a detonation process are an interesting class of diamond materials. Commercially supplied material is highly aggregated with similar to 5 nm diamond crystals forming particles with micron sizes. Previous models have suggested that nondiamond carbon is incorporated between the crystals, which would reduce the electrical and chemical usefulness of this form of diamond. However, using impedance spectroscopy we have shown that at temperatures below 350 degrees C the form of detonation nanodiamond being studied is a near to ideal dielectric, implying a full sp(3) form. At temperatures above this the surfaces of the diamond crystals may support some nondiamond carbon. (C) 2008 American Institute of Physics.

引用

页数：3

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