Growth of diamond nanoplatelets on nanocrystalline diamond substrates

Hou Guang Chen*, Li Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We report the growth of single crystalline diamond nanoplatelets (DNPs) on different types of nano-crystalline diamond substrates by high temperature microwave-plasma chemical vapor deposition. The influence of methane concentration on DNP morphologies has been studied. According to high-resolution transmission electron microscopy observation, DNPs are typical tabular twined crystallites which consist of several twin lamellae parallel to platelet surfaces and the side-face structure of DNPs is the ridge-and-trough structure consisting of {100} and {111} faces. The field emission properties of DNPs with various morphologies and nano-crystalline diamond substrates were characterized. The turn-on electrical field of DNPs with well-faceted side edges was lower in comparison with the DNPs with irregular shapes and nano-crystalline-diamond substrate.

Original languageEnglish
Pages (from-to)141-145
Number of pages5
JournalDiamond and Related Materials
Volume18
Issue number2-3
DOIs
StatePublished - 1 Feb 2009

Keywords

  • Field emission
  • MPCVD
  • Nano-diamond
  • TEM

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