Si<sub>3</sub>N<sub>4</sub> Coated Silica Granule-Assisted High-Performance Multi-Crystalline Silicon

Zhou Haiping; Yin Changhao; Zhang Zhaoyu; Zhong Genxiang; Huang Xinming

doi:10.15980/j.tzzz.2014.08.002

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Si₃N₄ Coated Silica Granule-Assisted High-Performance Multi-Crystalline Silicon
Vol. 34, Issue 8, Pages: 800-803(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.08.002

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[1]周海萍,尹长浩,张兆玉,钟根香,黄新明.氮化硅涂层改性石英颗粒辅助生长高效多晶硅[J].特种铸造及有色合金,2014,34(08):800-803.

Zhou Haiping, Yin Changhao, Zhang Zhaoyu, et al. Si₃N₄ Coated Silica Granule-Assisted High-Performance Multi-Crystalline Silicon. [J]. Special Casting & Nonferrous Alloys 34(8):800-803(2014)
[1]周海萍,尹长浩,张兆玉,钟根香,黄新明.氮化硅涂层改性石英颗粒辅助生长高效多晶硅[J].特种铸造及有色合金,2014,34(08):800-803. DOI： 10.15980/j.tzzz.2014.08.002.

Zhou Haiping, Yin Changhao, Zhang Zhaoyu, et al. Si₃N₄ Coated Silica Granule-Assisted High-Performance Multi-Crystalline Silicon. [J]. Special Casting & Nonferrous Alloys 34(8):800-803(2014) DOI： 10.15980/j.tzzz.2014.08.002.

摘要

在坩埚底部铺设与硅熔体浸润性较好的石英颗粒辅助晶体生长可以生长出晶粒细小且分布均匀的柱状晶粒

从而提高了多晶硅电池的光电转换效率。研究了氮化硅涂层改性石英颗粒对多晶硅生长和脱模的影响。结果表明

氮化硅涂层改性石英颗粒辅助生长可以获得晶粒细小且分布均匀的柱状晶粒

从而降低多晶硅缺陷密度

提高多晶硅质量

同时实现石英颗粒与晶体硅之间的自发分离

避免多晶硅与石英颗粒间因粘结而产生的应力问题。

Abstract

Silica granules have good wettability to silicon melt

and could be used as seeds to grow fine and well-distributed columnar silicon grains for high-performance multi-crystalline silicon（MC-silicon）related with high conversion efficiency of the solar cells.Si3N4 was coated to the silica granules for improving the MC-silicon growth and ingot releasing effect.It is found that the Si3N4 coating on the silica granules is helpful for obtaining fine and uniformly distributed columnar grain to decrease the defect density and improve the quality of multi-crystalline silicon.In addition

the detachment of the silica granules from silicon ingot is realized easily to eliminate the stress from the bonding of multi-crystalline silicon with silica granules.

关键词

高效多晶硅氮化硅涂层石英颗粒

Keywords

High-Performance MC-SiliconSi3N4CoatingSilica Granules

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Preparation of Si3N4Coating in Quartz Crucible Used for Multicrystalline Silicon Ingot by Non-sintered Process

Si3N4 Coated Silica Granule-Assisted High-Performance Multi-Crystalline Silicon

DOI： 10.15980/j.tzzz.2014.08.002

摘要

Abstract

关键词

Keywords

references

Si₃N₄ Coated Silica Granule-Assisted High-Performance Multi-Crystalline Silicon