High-quality crystalline silicon layer grown by liquid phase epitaxy method at low growth temperature

被引：6

作者：

Ujihara, T ^{[1
]}

Obara, K ^{[1
]}

Usami, N ^{[1
]}

Fujiwara, K ^{[1
]}

Sazaki, G ^{[1
]}

Shishido, T ^{[1
]}

Nakajima, K ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2003年 / 42卷 / 3A期

关键词：

solar cell; silicon thin film; LPE; lifetime; Raman spectroscopy;

D O I：

10.1143/JJAP.42.L217

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the effect of growth temperature on crystal quality of crystalline silicon layers grown by liquid phase epitaxy (LPE) with gold-bismuth binary alloy solvent. The electrical and structural properties were examined by means of minority-carrier lifetime measurement and micro-Raman scattering spectroscopy. Both electrical and structural qualities improve with decreasing growth temperature. In the present study, the lifetime of the silicon layer grown at the lowest temperature was higher than that of monocrystalline silicon substrate though the solvent includes gold which is a well-known strong recombination site. On the other hand, the structural quality of layers is inferior to that of the substrate even at the lowest growth temperature. Thus, the temperature dependence of lifetime was concluded to be mainly due to the reduction of the solubility of gold impurity in the layer rather than the improvement of structural quality.

引用

页码：L217 / L219

页数：3

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