Size control of silicon nanocrystals in silicon nitride film deposited by catalytic chemical vapor deposition at a low temperature (≤200 °C)

被引:13
作者
Lee, Kyoung-Min [1 ]
Kim, Tae-Hwan [1 ]
Hwang, Jae-Dam [1 ]
Jang, Seunghun [2 ]
Jeong, Kiyoung [2 ]
Han, Moonsup [2 ]
Won, Sunghwan [1 ]
Sok, Junghyun [1 ]
Park, Kyoungwan [1 ]
Hong, Wan-Shick [1 ]
机构
[1] Univ Seoul, Dept Nano Sci & Technol, Seoul 130743, South Korea
[2] Univ Seoul, Dept Phys, Seoul 130743, South Korea
关键词
Silicon nanocrystals; Low temperature process; Catalytic CVD; QUANTUM DOTS; EMISSION;
D O I
10.1016/j.scriptamat.2008.12.054
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We observed a wide range of photoluminescence (PL) energy variation from silicon nanocrystals prepared at a low temperature (<= 200 degrees C). The size of the silicon nanocrystals was controlled by varying the NH3/SiH4 mixture ratio. The PL peaks consist of three compounds: nanocrystalline silicon, amorphous silicon and nitrogen dangling bond. The luminescence from the silicon nanocrystals was dominant and its wavelength varied from 510 to 710 nm as the subgrain size changed from 3.5 to 5 nm. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:703 / 705
页数:3
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