Controlling the red luminescence from silicon quantum dots in hydrogenated amorphous silicon nitride films

2008 ◽  
Vol 92 (12) ◽  
pp. 121922 ◽  
Author(s):  
H. L. Hao ◽  
L. K. Wu ◽  
W. Z. Shen
1986 ◽  
Vol 68 ◽  
Author(s):  
Nancy Voke ◽  
Jerzy Kanicki

Hydrogenated amorphous silicon nitride films, prepared in various commercially available plasma enhanced chemical vapor deposition systems, have been investigated in terms of different deposition conditions.The full characterization of these gate insulators has been carried out by different techniques.Experimental data and interesting findings obtained from this study are presented.Special attention has been devoted to the influence of hydrogen on optical and electrical properties.


1986 ◽  
Vol 68 ◽  
Author(s):  
Jerzy Kanicki ◽  
Nancy Voke

Hydrogenated amorphous silicon nitride films, prepared in various commercially available plasma enhanced chemical vapor deposition systems, have been investigated in terms of different deposition conditions.The full characterization of these gate insulators has been carried out by different techniques.Experimental data and interesting findings obtained from this study are presented.Indeed, some valuable relationships between physico-chemical and mechanical properties have been established.Special attention has been devoted to the influence of hydrogen on these properties.


1992 ◽  
Vol 258 ◽  
Author(s):  
J.M. López-Villegas ◽  
B. Garrido ◽  
M.S. Benrakkad ◽  
J. Samitier ◽  
E. Bertran ◽  
...  

ABSTRACTThe electro-optical properties of hydrogenated amorphous silicon nitride films (a-SiNx:H) prepared by rf glow discharge of SiH4 and N2 have been determined as a function of the silicon content in the alloy. The stoichiometry and structure of the layers have been studied by ellipsometry, infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Two different electrical behaviours have been found. The samples with x>0.8 show conductivity based on the Frenkel-Poole mechanism, while the samples with x<0.8 show quasi-ohmic conductivity. Both kinds of conduction and the transition between them are analyzed in the framework of the percolation theory. In this context, the correlation between the stoichiometry and structure of the layers with their electrical behaviour indicate that the transition from the Frenkel-Poole to the quasi-ohmic conduction is a consequence of the formation of conducting paths as the percolation threshold of Si-Si bonds is reached.


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