The Hot-Filament Silver Vapor Source

1973 ◽  
Vol 10 (2) ◽  
pp. 401-402
Author(s):  
George A. Condas ◽  
Kenneth E. Vindelov
2015 ◽  
Vol 48 (6) ◽  
pp. 104-109
Author(s):  
Youn-Joon Baik ◽  
Do-Hyun Kwon ◽  
Jong-Keuk Park ◽  
Wook-Seong Lee

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 426
Author(s):  
Byeong-Kwan Song ◽  
Hwan-Young Kim ◽  
Kun-Su Kim ◽  
Jeong-Woo Yang ◽  
Nong-Moon Hwang

Although the growth rate of diamond increased with increasing methane concentration at the filament temperature of 2100 °C during a hot filament chemical vapor deposition (HFCVD), it decreased with increasing methane concentration from 1% CH4 –99% H2 to 3% CH4 –97% H2 at 1900 °C. We investigated this unusual dependence of the growth rate on the methane concentration, which might give insight into the growth mechanism of a diamond. One possibility would be that the high methane concentration increases the non-diamond phase, which is then etched faster by atomic hydrogen, resulting in a decrease in the growth rate with increasing methane concentration. At 3% CH4 –97% H2, the graphite was coated on the hot filament both at 1900 °C and 2100 °C. The graphite coating on the filament decreased the number of electrons emitted from the hot filament. The electron emission at 3% CH4 –97% H2 was 13 times less than that at 1% CH4 –99% H2 at the filament temperature of 1900 °C. The lower number of electrons at 3% CH4 –97% H2 was attributed to the formation of the non-diamond phase, which etched faster than diamond, resulting in a lower growth rate.


2008 ◽  
Vol 516 (5) ◽  
pp. 789-793 ◽  
Author(s):  
Steven F. Durrant ◽  
Benedito C. Trasferetti ◽  
Jair Scarmínio ◽  
Celso U. Davanzo ◽  
Francisco P.M. Rouxinol ◽  
...  

2007 ◽  
Vol 16 (3) ◽  
pp. 609-615 ◽  
Author(s):  
S. Konoplyuk ◽  
T. Abe ◽  
T. Takagi ◽  
T. Uchimoto

2003 ◽  
Vol 372 (3-4) ◽  
pp. 320-324 ◽  
Author(s):  
Y.H Tang ◽  
X.T Zhou ◽  
Y.F Hu ◽  
C.S Lee ◽  
S.T Lee ◽  
...  

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