Details

Autor(en) / Beteiligte

• Liu, Qian
• Zou, Rujia
• Wu, Jianghong
• Xu, Kaibing
• Lu, Aijiang
• Bando, Yoshio
• Golberg, Dmitri
• Hu, Junqing

Titel

Molten Au/Ge Alloy Migration in Ge Nanowires

Ist Teil von

• Nano letters, 2015-05, Vol.15 (5), p.2809-2816

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Herein, we report time-resolved in situ transmission electron microscopy observation of Au particle melting at a Ge nanowire tip, subsequent forming of Au/Ge alloy liquid, and its migrating within the Ge nanowire. The migration direction and position of the Au/Ge liquid can be controlled by the applied voltage and the migration speed shows a linear deceleration in the nanowire. In a migration model proposed, the relevant dynamic mechanisms (electromigration, thermodiffusion, and viscous force, etc.) are discussed in detail. This work associated with the liquid mass transport in the solid nanowires should provide new insights into the crystal growth, interface engineering, and fabrication of the heterogeneous nanostructure-based devices.