Nanophase diagram of binary eutectic Au-Ge nanoalloys for vapor-liquid-solid semiconductor nanowires growth.
Nanophase diagram of binary eutectic Au-Ge nanoalloys for vapor-liquid-solid semiconductor nanowires growth.
复制标题
用于气-液-固半导体纳米线生长的二元共晶Au-Ge纳米合金的纳米相图
DOI:
10.1038/srep11263
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发表时间:
2015-06-08
影响因子:
4.6
通讯作者:
Meng X
中科院分区:
文献类型:
--
作者:
Lu H;Meng X
Although the vapor-liquid-solid growth of semiconductor nanowire is a non-equilibrium process, the equilibrium phase diagram of binary alloy provides important guidance on the growth conditions, such as the temperature and the equilibrium composition of the alloy. Given the small dimensions of the alloy seeds and the nanowires, the known phase diagram of bulk binary alloy cannot be expected to accurately predict the behavior of the nanowire growth. Here, we developed a unified model to describe the size- and dimensionality-dependent equilibrium phase diagram of Au-Ge binary eutectic nanoalloys based on the size-dependent cohesive energy model. It is found that the liquidus curves reduce and shift leftward with decreasing size and dimensionality. Moreover, the effects of size and dimensionality on the eutectic composition are small and negligible when both components in binary eutectic alloys have the same dimensionality. However, when two components have different dimensionality (e.g. Au nanoparticle-Ge nanowire usually used in the semiconductor nanowires growth), the eutectic composition reduces with decreasing size.
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DOI:
10.1016/j.colsurfa.2005.12.015
发表时间:
2006-04-20
影响因子:
5.2
作者:
Lu, HM;Wen, Z;Jiang, Q
通讯作者:
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影响因子:
3.5
作者:
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影响因子:
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通讯作者:
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影响因子:
4.4
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Jiang, Q;Shi, HX;Zhao, M
通讯作者:
Zhao, M
影响因子:
4
作者:
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Mori, H.