Surface Chemical Effects on the Optical Properties of Thin Nanocrystalline Diamond Films

1996 ◽  
Vol 423 ◽  
Author(s):  
A. V. Khomich ◽  
V. I. Polyakov ◽  
P. I. Perov ◽  
V. P. Varnin ◽  
I. G. Teremetskaya ◽  
...  
Keyword(s):  
Optical Properties ◽  
Optical Transmission ◽  
Diamond Films ◽  
Nanocrystalline Diamond ◽  
Surface Chemical ◽  
Chemical Effects ◽  
Nanocrystalline Diamond Films ◽  
Hot Filament Cvd ◽  
Hot Filament ◽  
Highly Porous

AbstractThe effect of annealing in air on internal structure and optical properties of hot filament CVD nanocrystalline diamond films was investigated. Oxidation of the films lead to selective removal of intercrystallite layers with formation of highly porous structure with characteristic dimensions of several nanometers. Dramatic changes in optical transmission and Raman spectra were also observed. The origin of the two Raman spectrum maxima at 1140 and 500 cm−1 is discussed. Hydrogen absorption and desorption processes in porous diamond were studied.

Raman Studies of Nano- and Ultra-nanocrystalline Diamond Films Grown by Hot-Filament CVD

2010 ◽  
Vol 16 (4-6) ◽  
pp. 127-135 ◽  
Author(s):  
Frederik Klauser ◽  
Doris Steinmüller-Nethl ◽  
Reinhard Kaindl ◽  
Erminald Bertel ◽  
Norbert Memmel
Keyword(s):  
Diamond Films ◽  
Nanocrystalline Diamond ◽  
Nanocrystalline Diamond Films ◽  
Hot Filament Cvd ◽  
Hot Filament

scholarly journals Structural properties of highly conductive ultra-nanocrystalline diamond films grown by hot-filament CVD

AIP Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 015312 ◽  
Author(s):  
M. Mertens ◽  
I.-N. Lin ◽  
D. Manoharan ◽  
A. Moeinian ◽  
K. Brühne ◽  
...  
Keyword(s):  
Structural Properties ◽  
Diamond Films ◽  
Nanocrystalline Diamond ◽  
Nanocrystalline Diamond Films ◽  
Hot Filament Cvd ◽  
Hot Filament

The Deposition of Nanocrystalline Diamond by HFCVD in Different Materials

2012 ◽  
Vol 18-19 ◽  
pp. 227-234
Author(s):  
J.A. Santos ◽  
V.F. Neto ◽  
D. Ruch ◽  
J. Grácio
Keyword(s):  
Tungsten Carbide ◽  
Microwave Plasma ◽  
Diamond Films ◽  
Growth Conditions ◽  
Nanocrystalline Diamond ◽  
Nanocrystalline Films ◽  
Nanocrystalline Diamond Films ◽  
Coated Materials ◽  
Hot Filament Cvd ◽  
Hot Filament

Nanocrystalline diamond films, as other forms of diamond, possess a set of extreme properties, such as high thermal conductivity, hardness and resistance to hazard environments. Although an enormous focus has been placed into the deposition of nanocrystalline diamond films, most of this research uses microwave plasma assisted CVD systems. However, the growth conditions used in microwave systems cannot be directly used in hot-filament CVD systems. In this paper, it is meant to enlarge the knowledge of the process of depositing nanocrystalline films on different engineering materials, by means of hot-filament CVD systems. The coated materials include silicon (Si); titanium (Ti); tungsten carbide with cobalt as binder (WC-Co); and tungsten carbide with nickel as binder (WC-Ni). On the former two substrates, the diamond films were achieved on the bare substrates and with the use of an interlayer. The interlayers used were chromium nitride (CrN) and titanium aluminium nitride (TiAlN). Additionally, the as-grown films were characterized for hardness, quality and microstructure using scanning electron microscopy, Raman spectroscopy and nanohardness testing.

The fabrication of nanocrystalline diamond films using hot filament CVD

2004 ◽  
Vol 13 (1) ◽  
pp. 6-13 ◽  
Author(s):  
T. Wang ◽  
H.W. Xin ◽  
Z.M. Zhang ◽  
Y.B. Dai ◽  
H.S. Shen
Keyword(s):  
Diamond Films ◽  
Nanocrystalline Diamond ◽  
Nanocrystalline Diamond Films ◽  
Hot Filament Cvd ◽  
Hot Filament

Investigation on Field Electron Emission from Carbon Nanotubes on Nanocrystalline Diamond Films

2005 ◽  
Vol 23 ◽  
pp. 35-38 ◽  
Author(s):  
K.J. Liao ◽  
W.L. Wang ◽  
C. Cai ◽  
J.W. Lu ◽  
C.G. Hu
Keyword(s):  
Carbon Nanotubes ◽  
Diamond Films ◽  
Chemical Vapor ◽  
Nanocrystalline Diamond ◽  
Electron Field Emission ◽  
Si Substrates ◽  
Turn On ◽  
Nanocrystalline Diamond Films ◽  
Electron Field ◽  
Hot Filament

The electron field emission from carbon nanotubes on nanocrystalline diamond films was investigated. Carbon nanotubes and nano-diamond films were deposited on Si substrates by hot filament chemical vapor deposition. The experimental results showed that the carbon nanotubes on nanostructured films exhibited a lower value of the turn-on electric field than those of carbon nanotubes and nano-diamond. It was found that the turn-on field of nanotubes on nano-diamond was about 0.9V/μm, which was lower than those of carbon nanotubes and nano-diamond.

scholarly journals Electronic and optical properties of boron-doped nanocrystalline diamond films

2009 ◽  
Vol 79 (4) ◽  
Author(s):  
W. Gajewski ◽  
P. Achatz ◽  
O. A. Williams ◽  
K. Haenen ◽  
E. Bustarret ◽  
...  
Keyword(s):  
Optical Properties ◽  
Diamond Films ◽  
Nanocrystalline Diamond ◽  
Electronic And Optical Properties ◽  
Boron Doped ◽  
Nanocrystalline Diamond Films
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