Advances in Engineering Advances in Engineering features breaking research judged by Advances in Engineering advisory team to be of key importance in the Engineering field. Papers are selected from over 10,000 published each week from most peer reviewed journals.
Journal Reference
Anal Chem. 2015;87(11):5584-8.
Hsin CL1,2,3, Huang CW1, Chen JY1, Liao KC4, Liu PL4,5, Wu WW1, Chen LJ2.
[expand title=”Show Affiliations”]1Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu City, 300 Taiwan.
2Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu City, 30013 Taiwan.
3Department of Electrical Engineering, National Central University, Taoyuan City, 32001 Taiwan.
4Graduate Institute of Precision Engineering, National Chung Hsing University, Taichung City, 402 Taiwan.
5Department of Physics, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
[/expand]Abstract
Recently, in situ transmission electron microscopy (TEM) has provided a route to analyze structural characterization and chemical evolution with its powerful and unique applications. In this paper, we disclose the detailed phenomenon of sublimation on the atomic scale. In2Se3/In2O3 nanowires were synthesized via the vapor-liquid-solid mechanism and studied in an ultra-high-vacuum (UHV) TEM at high temperature in real time. During in situ observation of the sublimation process of the nanowires, the evolution and reconstruction of the exposed In2Se3 surface progressed in different manners with time. The surface structure was decomposed by mass-desorption and stepwise-migration processes, which are also energetically favored processes in the ab initio calculation. This study developed a new concept and will be essential in the development of atomic kinetics.
Go To Anal Chem
