The effects of hydrogen dilution on structure of Si:H thin films deposited by PECVD

被引:11
作者
Tran Quang Trung [1 ]
Jiri, Stuchlik [2 ]
Stuchlikova, Ha [2 ]
Le Khac Binh [1 ]
Nguyen Nang Dinh
Huynh Kim Khuong [1 ]
Phan Thi Nhu Quynh [1 ]
Nguyen Thi Huynh Nga [1 ]
机构
[1] Univ Nat Sci HCM, 227 Nguyen Van Cu Str,5 Distr, Ho Chi Minh City, Vietnam
[2] Inst Phys, CZ-18221 Prague, Czech Republic
来源
APCTP-ASEAN WORKSHOP ON ADVANCED MATERIALS SCIENCE AND NANOTECHNOLOGY (AMSN08) | 2009年 / 187卷
关键词
Plasma-enhanced chemical vapor deposition; hydrogen dilution; a-Si:H; nc/mu c-Si:H; para-crystallines; AMORPHOUS-SILICON; RAMAN;
D O I
10.1088/1742-6596/187/1/012035
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Si:H thin films were deposited using PECVD method at substrate temperature of 250 degrees C with different hydrogen dilution. Structure investigations and hydrogen concentration estimation were performed using FTIR, Raman and UV-VIS spectroscopy. The IR and Raman spectra show various peak shifting when H dilution is changed. Band gaps of films were evaluated from the strong absorption regions in UV-VIS transmission spectra. The results demonstrate a transition from amorphous to nc/mu c structure when hydrogen dilution increased.
引用
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页数:6
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