Influence of Vacancy Defect on Surface Feature and Adsorption of Cs on GaN(0001) Surface
Joint Authors
Ji, Yanjun
Du, Yujie
Wang, Meishan
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-07
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The effects of Ga and N vacancy defect on the change in surface feature, work function, and characteristic of Cs adsorption on a 2 × 2 GaN(0001) surface have been investigated using density functional theory with a plane-wave ultrasoft pseudopotential method based on first-principles calculations.
The covalent bonds gain strength for Ga vacancy defect, whereas they grow weak for N vacancy defect.
The lower work function is achieved for Ga and N vacancy defect surfaces than intact surface.
The most stable position of Cs adatom on Ga vacancy defect surface is at T1 site, whereas it is at B Ga site on N vacancy defect surface.
The E ads of Cs on GaN(0001) vacancy defect surface increases compared with that of intact surface; this illustrates that the adsorption of Cs on intact surface is more stable.
American Psychological Association (APA)
Ji, Yanjun& Du, Yujie& Wang, Meishan. 2014. Influence of Vacancy Defect on Surface Feature and Adsorption of Cs on GaN(0001) Surface. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1049815
Modern Language Association (MLA)
Ji, Yanjun…[et al.]. Influence of Vacancy Defect on Surface Feature and Adsorption of Cs on GaN(0001) Surface. The Scientific World Journal No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1049815
American Medical Association (AMA)
Ji, Yanjun& Du, Yujie& Wang, Meishan. Influence of Vacancy Defect on Surface Feature and Adsorption of Cs on GaN(0001) Surface. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1049815
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049815