Determination of Optical Constants of Rough Hydrogenated Amorphous Silicon Thin Films

2013 ◽  
Vol 33 (3) ◽  
pp. 0331001
Author(s):  
丁文革 Ding Wenge ◽  
卢云霞 Lu Yunxia ◽  
马登浩 Ma Denghao ◽  
苑静 Yuan Jing ◽  
侯玉斌 Hou Yubin ◽  
...  
2011 ◽  
Vol 383-390 ◽  
pp. 6980-6985
Author(s):  
Mao Yang Wu ◽  
Wei Li ◽  
Jun Wei Fu ◽  
Yi Jiao Qiu ◽  
Ya Dong Jiang

Hydrogenated amorphous silicon (a-Si:H) thin films doped with both Phosphor and Nitrogen are deposited by ratio frequency plasma enhanced chemical vapor deposition (PECVD). The effect of gas flow rate of ammonia (FrNH3) on the composition, microstructure and optical properties of the films has been investigated by X-ray photoelectron spectroscopy, Raman spectroscopy and ellipsometric spectra, respectively. The results show that with the increase of FrNH3, Si-N bonds appear while the short-range order deteriorate in the films. Besides, the optical properties of N-doped n-type a-Si:H thin films can be easily controlled in a PECVD system.


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