期刊
COMPUTATIONAL MATERIALS SCIENCE
卷 95, 期 -, 页码 221-227出版社
ELSEVIER
DOI: 10.1016/j.commatsci.2014.07.035
关键词
Ab initio; Cu3N; Cu3NLa; Cu3NCe; Optical and elastic properties
资金
- National Basic Research Program of China [2012CB933301]
- Key Project of National High Technology Research of China [2011AA050526]
- Ministry of Education of China [IRT1148]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- National Natural Science Foundation of China [51172110, 51372119, 61377019]
In this work, accurate ab initio total-energy calculations were performed using the full-potential linearized augmented plane-wave (FP-LAPW) method to investigate the equilibrium structural, electronic, elastic and optical properties of doped and pristine Cu3N. The lattice parameters of Cu3NLa (4.299 angstrom) and Cu3NCe (4.246 angstrom) were found to be larger than that of Cu3N (3.834 angstrom), indicating that the doped Cu3N was transformed from a semiconductor into a conductor. The results for the elastic constants revealed that Cu3N, Cu3NLa and Cu3NCe all possess stable mechanical properties, suggesting that they are promising candidates for electronic and optical device applications. (C) 2014 Elsevier B.V. All rights reserved.
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