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Engineering    2015, Vol. 1 Issue (3) : 378 -383     https://doi.org/10.15302/J-ENG-2015032
Research |
Single-Seed Casting Large-Size Monocrystalline Silicon for High-Efficiency and Low-Cost Solar Cells
Bing Gao1,(),Satoshi Nakano1,Hirofumi Harada2,Yoshiji Miyamura2,Takashi Sekiguchi2,Koichi Kakimoto1
1. Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
2. National Institute for Materials Science, Tsukuba, Ibaraki 305-0044 Japan
Abstract
Abstract  

To grow high-quality and large-size monocrystal-line silicon at low cost, we proposed a single-seed casting technique. To realize this technique, two challenges—polycrystalline nucleation on the crucible wall and dislocation multiplication inside the crystal—needed to be addressed. Numerical analysis was used to develop solutions for these challenges. Based on an optimized furnace structure and operating conditions from numerical analysis, experiments were performed to grow monocrystalline silicon using the single-seed casting technique. The results revealed that this technique is highly superior to the popular high-performance multicrystalline and multiseed casting mono-like techniques.

Keywords single-seed casting      monocrystalline silicon      polycrystalline nucleation      dislocation multiplication      multicrystalline silicon     
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Corresponding Authors: Bing Gao   
Just Accepted Date: 17 September 2015   Issue Date: 16 October 2015
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Bing Gao
Satoshi Nakano
Hirofumi Harada
Yoshiji Miyamura
Takashi Sekiguchi
Koichi Kakimoto
Cite this article:   
Bing Gao,Satoshi Nakano,Hirofumi Harada, et al. Single-Seed Casting Large-Size Monocrystalline Silicon for High-Efficiency and Low-Cost Solar Cells[J]. Engineering, 2015, 1(3): 378 -383 .
URL:  
http://engineering.org.cn/EN/10.15302/J-ENG-2015032     OR     http://engineering.org.cn/EN/Y2015/V1/I3/378
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