Epitaxial Growth and Photoluminescence Properties of β-FeSi2 Grains Using Liquid Phase Obtained by Au-Si Eutectic Reaction
Epitaxial Growth and Photoluminescence Properties of β-FeSi2 Grains Using Liquid Phase Obtained by Au-Si Eutectic Reaction
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Au-Si共晶反应液相β-FeSi2晶粒的外延生长及其光致发光性能
DOI：
10.1117/12.2212057
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Kensuke Akiyama and Hiroshi Funakubo
中科院分区：
文献类型：
--
作者：
Mutsuo Uehara;Kensuke Akiyama;Takao Shimizu;Masaaki Matsushima;Hiroshi Uchida;Yoshisato Kimura;and Hiroshi Funakubo;Kensuke Akiyama and Hiroshi Funakubo
在镀有Au层的Si（111）衬底上生长了发光外延β-FeSi 2晶粒。这些β-FeSi 2晶粒具有（101）/（110）择优取向，并具有两种三畴结构。Au-Si共晶反应生成的Au-Si液相有助于β-FeSi 2晶粒在Si（111）表面的形成。在240 K以下观察到清晰的光致发光（PL）谱，表明β-FeSi 2形成了高质量的晶体，且晶粒中的非辐射复合中心密度较低。
Luminescent epitaxial β-FeSi2grains were grown on the Si (111) substrates precoated with Au-layer. These epitaxial β- FeSi2grains had (101)/(110)-preferred orientation and were constructed with two kinds of triple-domain structure. The Au-Si liquid phase obtained by the Au-Si eutectic reaction contributed to the formation of such β-FeSi2grains on the Si (111) surface. Clear photoluminescence (PL) spectrum of β-FeSi2were observed up to 240 K that indicated the formation of high-quality crystals with the low density of the non-radiative recombination center in the grains.