2015/05/13 歡迎 交大 電子物理系 周苡嘉助理教授 蒞臨演講，講題：Growth and nanoscale reactions of semiconductor nanowires

本週邀請到 交大 電子物理系 周苡嘉助理教授 進行專題演講
講題：Growth and nanoscale reactions of semiconductor nanowires
時間：2015/05/13 15:30~17:20
地點：NE69演講廳

The growth of semiconductor nanowires by the vapor-liquid-solid (VLS) and vapor-solid-solid (VSS) mechanisms takes place when the growth material, supplied from a gas phase species such as a chemical vapor deposition (CVD) precursor, dissolves into catalyst particles (liquid or solid, respectively) and precipitates at the catalyst/substrate interface. In order to gain a detailed understanding of this process at the atomic level, we examined semiconductor nanowire growth in situ, to provide a direct view as growth takes place. I will also discuss observations made in two different instruments, an ultra high vacuum (UHV) TEM and an aberration-corrected environmental TEM (ETEM), by introducing an environmental friendly catalyst system which opens up the opportunity for nanowire growth conventional non-UHV CVD systems.