Citation: |
Naili Yue, Joshua Myers, Liqin Su, Wentao Wang, Fude Liu, Raphael Tsu, Yan Zhuang, Yong Zhang. Growth of oxidation-resistive silicene-like thin flakes and Si nanostructures on graphene[J]. Journal of Semiconductors, 2019, 40(6): 062001. doi: 10.1088/1674-4926/40/6/062001
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N L Yue, J Myers, L Q Su, W T Wang, F D Liu, R Tsu, Y Zhuang, Y Zhang, Growth of oxidation-resistive silicene-like thin flakes and Si nanostructures on graphene[J]. J. Semicond., 2019, 40(6): 062001. doi: 10.1088/1674-4926/40/6/062001.
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Growth of oxidation-resistive silicene-like thin flakes and Si nanostructures on graphene
DOI: 10.1088/1674-4926/40/6/062001
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Abstract
We report the growth of Si nanostructures, either as thin films or nanoparticles, on graphene substrates. The Si nanostructures are shown to be single crystalline, air stable and oxidation resistive, as indicated by the observation of a single crystalline Si Raman mode at around 520 cm–1, a STM image of an ordered surface structure under ambient condition, and a Schottky junction with graphite. Ultra-thin silicon regions exhibit silicene-like behavior, including a Raman mode at around 550 cm–1, a triangular lattice structure in STM that has distinctly different lattice spacing from that of either graphene or thicker Si, and metallic conductivity of up to 500 times higher than that of graphite. This work suggests a bottom-up approach to forming a Si nanostructure array on a large-scale patterned graphene substrate that can be used to fabricate nanoscale Si electronic devices. -
References
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