2018年第79回応用物理学会秋季学術講演会

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9 応用物性 » 9.2 ナノワイヤ・ナノ粒子

[20p-PB2-1~18] 9.2 ナノワイヤ・ナノ粒子

2018年9月20日(木) 13:30 〜 15:30 PB (白鳥ホール)

13:30 〜 15:30

[20p-PB2-4] Growth of Au-Sn catalyzed Ge1-xSnx nanowires by vapor-liquid-solid method

Yonglie Sun1,2、Ryo Matsumura1、Wipakorn Jevasuwan1、Naoki Fukata1,2 (1.NIMS、2.Tsukuba Univ.)

キーワード:germanium tin, germanium nanowire

Germanium tin (Ge1-xSnx) alloys have been attracting much attention recently for its high carrier mobility and an opportunity for achieving a direct band gap structure by introducing Sn more than 6.5-11 at.%. One-dimensional nanowires (NWs) can release strain to contain more Sn with high crystallinity and be applied for next generation field-effect transistor (FET) and optoelectronics devices.
Here, we present an easy way to grow Ge1-xSnx nanowires on Si substrate via vapor-liquid-solid (VLS) mechanism with Au-Sn catalysts. Metal Sn in catalysts was used as Sn source instead of precursor gas and Au to guide Sn incorporation during the VLS growth of Ge nanowires.