Effect of filament biasing on nanocrystalline-Si films deposited by hot wire chemical vapor deposition

被引:1
作者
Swain, Bibhu P. [1 ]
Swain, Bhabani S. [1 ]
Yang, Seung M. [1 ]
Hwang, Nong M. [1 ]
机构
[1] Seoul Natl Univ, Dept Mat Sci & Engn, Natl Res Lab Charged Nanoparticles, Seoul 151742, South Korea
关键词
Raman spectroscopy; XPS; FESEM; HWCVD; POLYCRYSTALLINE SILICON; STRUCTURAL-PROPERTIES; NUCLEATION; DIAMOND; CVD;
D O I
10.1016/j.apsusc.2009.01.061
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Nanocrystalline silicon (nc-Si) films were deposited by hot wire chemical vapor deposition with applying positive or negative. lament biases. These films were characterized by Raman spectroscopy, field emission scanning electron microscopy and X-ray photoelectron spectroscopy. Plasmon loss of the Si(2p) band region was shifted to higher energy due to dielectric changes with applied. lament biases from negative to positive voltage. A semi-quantitative study of the valence band structure was employed to analyze the bias effect of the valance band in nc-Si networks. Nc-Si with a positive. lament bias shows better microstructural properties than those with a negative bias and without biasing nc-Si films. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:6033 / 6037
页数:5
相关论文
共 15 条
[1]  
Hakuma H, 2003, WORL CON PHOTOVOLT E, P1796
[2]   Bias enhanced nucleation of diamond on silicon (100) in a HFCVD system [J].
Janischowsky, K ;
Ebert, W ;
Kohn, E .
DIAMOND AND RELATED MATERIALS, 2003, 12 (3-7) :336-339
[3]   Plasmon-loss imaging of chains of crystalline-silicon nanospheres and silicon nanowires [J].
Kohno, H ;
Takeda, S ;
Tanaka, K .
JOURNAL OF ELECTRON MICROSCOPY, 2000, 49 (02) :275-280
[4]   Influence of gas supply and filament geometry on the large-area deposition of amorphous silicon by hot-wire CVD [J].
Ledermann, A ;
Weber, U ;
Mukherjee, C ;
Schroeder, B .
THIN SOLID FILMS, 2001, 395 (1-2) :61-65
[5]   Structural properties of hot wire a-Si:H films deposited at rates in excess of 100 A/s [J].
Mahan, AH ;
Xu, Y ;
Williamson, DL ;
Beyer, W ;
Perkins, JD ;
Vanecek, M ;
Gedvilas, LM ;
Nelson, BP .
JOURNAL OF APPLIED PHYSICS, 2001, 90 (10) :5038-5047
[6]   Formation of silicon-based thin films prepared by catalytic chemical vapor deposition (Cat-CVD) method [J].
Matsumura, H .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1998, 37 (6A) :3175-3187
[7]   Raman line profile in polycrystalline silicon [J].
Pivac, B ;
Furic, K ;
Desnica, D ;
Borghesi, A ;
Sassella, A .
JOURNAL OF APPLIED PHYSICS, 1999, 86 (08) :4383-4386
[8]   Low temperature polycrystalline silicon: a review on deposition, physical properties and solar cell applications [J].
Rath, JK .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2003, 76 (04) :431-487
[9]   Structural properties and surface morphology of laser-deposited amorphous carbon and carbon nitride films [J].
Riedo, E ;
Comin, F ;
Chevrier, J ;
Schmithusen, F ;
Decossas, S ;
Sancrotti, M .
SURFACE & COATINGS TECHNOLOGY, 2000, 125 (1-3) :124-128
[10]  
SCHROPP REI, 2002, MAT RES SOC S P, V715