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arXiv · 1511.06823

Free-Standing Two-Dimensional Single-Crystalline InSb Nanosheets

Dong Pan·Dingxun Fan·Ning Kang·Jinhua Zhi·Xuezhe Yu·Hongqi Xu·Jianhua Zhao
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Abstract

Growth of high-quality single-crystalline InSb layers remains challenging in material science. Such layered InSb materials are highly desired for searching for and manipulation of Majorana fermions in solid state, a fundamental research task in physics today, and for development of novel high-speed nanoelectronic and infrared optoelectronic devices. Here we report on a new route towards growth of single-crystalline, layered InSb materials. We demonstrate the successful growth of free-standing, two-dimensional InSb nanosheets on one-dimensional InAs nanowires by molecular-beam epitaxy. The grown InSb nanosheets are pure zinc-blende single crystals. The length and width of the InSb nanosheets are up to several micrometers and the thickness is down to ~10 nm. The InSb nanosheets show a clear ambipolar behavior and a high electron mobility. Our work will open up new technology routes towards the development of InSb-based devices for applications in nanoelectronics, optoelectronics and quantum electronics, and for study of fundamental physical phenomena.

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Dong Pan, Dingxun Fan, Ning Kang, Jinhua Zhi, Xuezhe Yu, Hongqi Xu, Jianhua Zhao. 2015-11-21. Free-Standing Two-Dimensional Single-Crystalline InSb Nanosheets. https://doi.org/10.1021/acs.nanolett.5b04845

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