Title :
Operation and crystalline properties of electromagnetic casting
Author :
Kawamura, R. ; Sasatani, K. ; Onizuka, T. ; Kaneko, K.
Author_Institution :
R&D Center, Sumimoto Sitix Corp., Hyogo, Japan
Abstract :
For the development of the electromagnetic casting (EMC), it was proposed to produce a 220×220 mm2 cross sectional silicon ingot with high speed casting, making stable solid-liquid interface, with high crystalline properties of the ingot. The casting speed reached 3.0 mm/min. It was found that photovoltaic conversion efficiencies were unchanged when casting speed ranged from 1.0~3.0 mm/min. The distribution of photovoltaic conversion efficiency in the axial direction of casting was very uniform. From the measurement of diffusion length of the crystal, it was concluded that the electromagnetic casting technology was equal to the conventional casting technology in the crystalline properties. Measurement of grain size was also performed
Keywords :
casting; diffusion; elemental semiconductors; grain size; silicon; solar cells; solidification; Si; Si ingot; axial direction; casting speed; crystalline properties; diffusion length measurement; electromagnetic casting; grain size measurement; high crystalline properties; photovoltaic conversion efficiencies; silicon ingot; solid-liquid interface; Casting; Crystallization; Electromagnetic compatibility; Electromagnetic measurements; Grain size; Length measurement; Photovoltaic systems; Silicon; Size measurement; Solar power generation;
Conference_Titel :
Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1460-3
DOI :
10.1109/WCPEC.1994.520535
