کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1487037 | 1510692 | 2016 | 5 صفحه PDF | دانلود رایگان |
• The purity Metallurgical Grade Silicon powder must be enhanced to increase their functionality.
• Therefore, we present in this work a new alternative approaches to purify the (MG-Si).
• This approach is based on an iterative gettering (IG).
The purity Metallurgical Grade Silicon powder (MG-Si) must be enhanced to increase their functionality for various applications. Therefore, we present in this work a new alternative approaches to purify the (MG-Si). This approach is based on an iterative gettering (IG) which consist to create a sacrificial porous silicon (PS) layer on the top surface of silicon grain, followed by rapid thermal processing (RTP) in an infrared furnace at 900 °C under O2 ambient and then etched with diluted acids. Surface morphology and chemical composition of the treated samples were analyzed by scanning electronic microscopy (SEM), energy dispersive X-ray (EDAX) spectroscopy and inductively coupled plasma associated to Atomic emission spectroscopy (ICP-AES) analysis. The effect of the purification process on the optical properties of MG-Si was evaluated by the PL spectroscopy. The results indicate that Si powder purity was successfully recovered to become as high as 6 N purity.
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Journal: Materials Research Bulletin - Volume 83, November 2016, Pages 324–328