Vibrational modes in (TlGaS2)x‒(TlGaSe2)1−x mixed crystals by Raman measurements: compositional dependence of the mode frequencies and line-shapes

2020 ◽  
Vol 31 (17) ◽  
pp. 14330-14335
Author(s):  
M. Isik ◽  
M. Terlemezoglu ◽  
N. M. Gasanly ◽  
R. F. Babayeva
1999 ◽  
Vol 273-274 ◽  
pp. 827-830 ◽  
Author(s):  
R.C. Newman ◽  
B.R. Davidson ◽  
R.S. Leigh ◽  
M.J.L. Sangster ◽  
C.C. Button

2005 ◽  
Vol 862 ◽  
Author(s):  
D. Bobela ◽  
T. Su ◽  
P. C. Taylor ◽  
G. Ganguly

Abstract1H NMR studies of hydrogenated amorphous silicon (a-Si:H) with ˜1017 cm-3 defects grown by PECVD with a rate of 5 Å/s show the existence of a hydrogen doublet for both asgrown and light-soaked samples. We observe the doublet over the temperature range from 5 to 20 K in a sample where no light soaking has occurred. The doublet line shapes display no narrowing over this temperature range. Vibrational modes characteristic of SiH2 wagging and scissor modes are seen from infrared spectroscopy. These results suggest that the doublet is due to SiH2 that occurs at a density of approximately 1 at. % in this sample. From line shape analysis, we estimate a lower limit of 1.8 ˜ for the hydrogen-to-hydrogen separation.


2004 ◽  
Vol 95 (9) ◽  
pp. 4894-4897 ◽  
Author(s):  
Young-Moon Yu ◽  
Dae-Jung Kim ◽  
Yong Dae Choi ◽  
Ki-Seon Lee ◽  
Byungsung O

Sign in / Sign up

Export Citation Format

Share Document