Crystal growth of high-purity multicrystalline silicon using a unidirectional solidification furnace for solar cells

2010 ◽  
Vol 312 (9) ◽  
pp. 1572-1576 ◽  
Author(s):  
B. Gao ◽  
X.J. Chen ◽  
S. Nakano ◽  
K. Kakimoto
Keyword(s):  
Solar Cells ◽  
Crystal Growth ◽  
High Purity ◽  
Unidirectional Solidification ◽  
Multicrystalline Silicon ◽  
Solidification Furnace

scholarly journals Control of the Gas Flow in an Industrial Directional Solidification Furnace for Production of High Purity Multicrystalline Silicon Ingots

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Lijun Liu ◽  
Xiaofang Qi ◽  
Wencheng Ma ◽  
Zaoyang Li ◽  
Yunfeng Zhang
Keyword(s):  
Directional Solidification ◽  
High Purity ◽  
Gas Flow ◽  
Multicrystalline Silicon ◽  
Furnace Chamber ◽  
Impurity Transport ◽  
Silicon Melt ◽  
Order Of Magnitude ◽  
Solidification Furnace ◽  
Cover Design

A crucible cover was designed as gas guidance to control the gas flow in an industrial directional solidification furnace for producing high purity multicrystalline silicon. Three cover designs were compared to investigate their effect on impurity transport in the furnace and contamination of the silicon melt. Global simulations of coupled oxygen (O) and carbon (C) transport were carried out to predict the SiO and CO gases in the furnace as well as the O and C distributions in the silicon melt. Cases with and without chemical reaction on the cover surfaces were investigated. It was found that the cover design has little effect on the O concentration in the silicon melt; however, it significantly influences CO gas transport in the furnace chamber and C contamination in the melt. For covers made of metal or with a coating on their surfaces, an optimal cover design can produce a silicon melt free of C contamination. Even for a graphite cover without a coating, the carbon concentration in the silicon melt can be reduced by one order of magnitude. The simulation results demonstrate a method to control the contamination of C impurities in an industrial directional solidification furnace by crucible cover design.

High Purity Solvent-Coordinated Tin Halide Complexes for Lead Free Perovskite Solar Cells

2017 ◽  
Author(s):  
Jiewei Liu ◽  
Masashi Ozaki ◽  
Yukie Katsuki ◽  
Taketo Handa ◽  
Ryosuke Nishikubo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Purity ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Halide Complexes

scholarly journals Precise Control of Crystal Growth for Highly Efficient CsPbI2Br Perovskite Solar Cells

Joule ◽  
2019 ◽  
Vol 3 (1) ◽  
pp. 304 ◽  
Author(s):  
Weijie Chen ◽  
Haiyang Chen ◽  
Guiying Xu ◽  
Rongming Xue ◽  
Shuhui Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystal Growth ◽  
Perovskite Solar Cells ◽  
Precise Control ◽  
Highly Efficient
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