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Growth and properties of nanocrystalline diamond films
Author(s) -
Williams Oliver A.,
Nesládek Miloš
Publication year - 2006
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200671406
Subject(s) - diamond , chemical vapor deposition , materials science , raman spectroscopy , nanotechnology , nanocrystalline material , thin film , material properties of diamond , composite material , optics , physics
Abstract The aim of this paper is to summarise recent progress in the growth of small grain‐sized Chemical Vapor Deposition (CVD) diamond often called nanocrystalline diamond, i.e., diamond with grains typically smaller than 500 nm. Nanocrystalline (NCD) and Ultrananocrystalline diamond (UNCD) films are new materials offering interesting applications to nanobioelectronics and electrochemistry. However NCD and UNCD thin films comprise of entirely different structures which is highlighted here in this paper. We discuss in detail the main differences in Raman spectra, optical properties and electrical transport properties. Finally we present a simple model of the conductivity mechanism in nitrogenated UNCD (N‐UNCD) and boron doped NCD (B‐NCD) films, and show the possibility of achieving the superconductive transition in B‐NCD films. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)