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Optical and electrical characterization of Te and Be doped GaAs nanowires grown by self-catalyzed molecular beam epitaxy

机译:自催化分子束外延生长的Te和Be掺杂GaAs纳米线的光电特性

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We have investigated optical and electrical properties of Te and Be doped GaAs nanowires (NW) grown by self-catalyzed molecular beam epitaxy. The NWs were grown on p-Si(111) substrates using a novel technique based on lithography-free Si/SiOx patterns fabricated by droplet epitaxy and spontaneous oxidation, which allows synthesis of highly uniform NWs with controllable size and density. The incorporation of Be- and Te-dopants in GaAs NWs was investigated by using transport, photoluminescence (PL) and Raman spectroscopy techniques.
机译:我们已经研究了通过自催化分子束外延生长的Te和Be掺杂的GaAs纳米线(NW)的光学和电学性质。使用基于微滴外延和自发氧化制造的无光刻Si / SiOx图案的新技术,在p-Si(111)衬底上生长NW,从而可以合成尺寸和密度可控的高度均匀的NW。通过使用传输,光致发光(PL)和拉曼光谱技术研究了Be和Te掺杂剂在GaAs NW中的掺入。

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