Effect of Fluorine on the Lateral Crystallization of Amorphous Silicon Nanowires
Effect of Fluorine on the Lateral Crystallization of Amorphous Silicon Nanowires
复制标题
氟对非晶硅纳米线横向结晶的影响
DOI:
10.1149/2.023202jss
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发表时间:
2012
影响因子:
2.2
通讯作者:
Sun K
中科院分区:
文献类型:
--
作者:
Sun K
In this work, we investigate the effect of fluorine on the metal-induced lateral crystallization (MILC) of amorphous silicon nanowires. The MILC is characterized at temperatures in the range 550 to 450 C using Nomarski optical microscopy and Raman spectroscopy. It is shown that fluorine significantly increases the crystallization length at temperatures of 550 and 525 C and dramatically improves the uniformity of the crystallization length at temperatures between 550 and 500 C. A fluorine implant improves the standard deviation of the crystallization length from 39.7% to 5.8% at a temperature of 550 C, from 35.6% to 5.2% at 525 C and from 30.6% to 15.9% at 500 C. This improvement in the uniformity of the crystallization is explained by the suppression of random grain nucleation by the fluorine. A comparison is also made between MILC in α-Si nanowires and larger α-Si ribbons and sheets. The crystallization length is significantly longer in ribbons and sheets, but fluorine is again shown to give a significant improvement in the uniformity of the crystallization.
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影响因子:
10.8
作者:
Hakim, Mohammad M. A.;Lombardini, Marta;Ashburn, Peter
通讯作者:
Ashburn, Peter
影响因子:
3.9
作者:
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影响因子:
2.2
作者:
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