Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498531 | Scripta Materialia | 2015 | 4 Pages |
Abstract
First-principles calculations are performed to study Ag and Ag-alloy adsorption stability on GaN(0 0 0 1) surface. We find Ag only contact to GaN surface is unstable under high temperature. While Ag-alloy adsorption exhibits better adsorption stability and electronic properties than that of the Ag only contact,due to the enhanced interaction between Ag-alloy and GaN(0 0 0 1) surface. The Ag-alloy, particularly AgNi, is proposed to be used as very promising ohmic contact to GaN for practical applications.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Zhihua Xiong, Zhenzhen Qin, Qian Zhao, Lanli Chen,