KrF Laser-Induced Chemical Vapor Deposition of Diamond

1989 ◽  
Vol 162 ◽  
Author(s):  
George W. Tyndall ◽  
Nigel P. Hacker

ABSTRACTA KrF* (248 nm) laser-based process for the deposition of carbon films containing a large fraction of diamond is reported. The experiment consists of focusing the pulsed laser beam at normal incidence onto the surface of a low temperature (20° - 150° C) silicon substrate in the presence of acetic or malonic acid vapor. The process does not require the presence of hydrogen, although an inert buffer gas, e. g. argon, is usually employed. Deposition rates of approximately 1 μm - hour−1 are obtained, and the presence of diamond in the deposited film is inferred from Raman Spectroscopy and Auger Electron Spectroscopy.

1993 ◽  
Vol 334 ◽  
Author(s):  
I.B. Graff ◽  
R.A. Pugliese ◽  
P.R. Westmoreland

AbstractMolecular-beam mass spectrometry has been used to study plasma-enhanced chemical vapor deposition (PECVD) of diamondlike carbon films. A threshold-ionization technique was used to identify and quantify species in the plasma. Mole fractions of H, H2, CH4, C2H2, C2H6 and Ar were measured in an 83.3% CH4/Ar mixture at a pressure of 0.1 torr and a total flow of 30 sccm. Comparisons were made between mole fractions measured at plasma powers of 25W and 50W. These results were compared to measured concentration profiles and to film growth rates.


2010 ◽  
Vol 42 (12-13) ◽  
pp. 1702-1705 ◽  
Author(s):  
R. Maheswaran ◽  
R. Sivaraman ◽  
O. Mahapatra ◽  
P. C. Rao ◽  
C. Gopalakrishnan ◽  
...  

2013 ◽  
Vol 52 (11R) ◽  
pp. 110123 ◽  
Author(s):  
Meng Yang ◽  
Susumu Takabayashi ◽  
Shuichi Ogawa ◽  
Hiroyuki Hayashi ◽  
Radek Ješko ◽  
...  

2012 ◽  
Vol 523 ◽  
pp. 25-28 ◽  
Author(s):  
Meng Yang ◽  
Shuichi Ogawa ◽  
Susumu Takabayashi ◽  
Taiichi Otsuji ◽  
Yuji Takakuwa

2011 ◽  
Vol 485 ◽  
pp. 133-136 ◽  
Author(s):  
Ryoichi Saotome ◽  
Naoki Wakiya ◽  
Takanori Kiguchi ◽  
Jeffrey S. Cross ◽  
Osamu Sakurai ◽  
...  

Highly oriented and polycrystalline Gd2O3 doped CeO2 thin films were prepared on α-Al2O3(0001) substrates by chemical vapor deposition, using Ce(C5H4C2H5)3 and Gd(C5H4C2H5)3 as precursors. The compositions of the films were controlled by optimizing the vaporization pressure of Gd precursor under the constant vaporization condition of Ce precursor. In-plane electrical conductivities of the films at various temperatures and oxygen partial pressures were evaluated by electrochemical impedance spectroscopy measurements. The activation energy of the film was determined as 0.94 eV, which is comparable with that of pulsed laser deposited films.


Sign in / Sign up

Export Citation Format

Share Document