Surface stability and the selection rules of substrate orientation for optimal growth of epitaxial II-VI semiconductors
Abstract
The surface structures of ionic zinc-blende CdTe (001), (110), (111), and (211) surfaces are systematically studied by first-principles density functional calculations. Based on the surface structures and surface energies, we identify the detrimental twinning appearing in molecular beam epitaxy (MBE) growth of II-VI compounds as the (111) lamellar twin boundaries. Here, to avoid the appearance of twinning in MBE growth, we propose the following selection rules for choosing optimal substrate orientations: (1) the surface should be nonpolar so that there is no large surface reconstructions that could act as a nucleation center and promote the formation of twins; (2) the surface structure should have low symmetry so that there are no multiple equivalent directions for growth. These straightforward rules, in consistent with experimental observations, provide guidelines for selecting proper substrates for high-quality MBE growth of II-VI compounds.
- Authors:
-
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Toledo, OH (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Univ. of Toledo, OH (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- OSTI Identifier:
- 1225936
- Report Number(s):
- NREL/JA-5K00-63854
Journal ID: ISSN 0003-6951
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 107; Journal Issue: 14; Related Information: Applied Physics Letters; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; II-VI semiconductors; semiconductor surfaces; surface reconstruction; molecular beam epitaxy; surface structure; semiconductors; crystal structure; crystallographic defects; chemical bonding; selection rule; epitaxy; crystal twinnings; surface physics; density functional theory; electrostatics
Citation Formats
Yin, Wan-Jian, Yang, Ji-Hui, Zaunbrecher, Katherine, Gessert, Tim, Barnes, Teresa, Yan, Yanfa, and Wei, Su-Huai. Surface stability and the selection rules of substrate orientation for optimal growth of epitaxial II-VI semiconductors. United States: N. p., 2015.
Web. doi:10.1063/1.4932374.
Yin, Wan-Jian, Yang, Ji-Hui, Zaunbrecher, Katherine, Gessert, Tim, Barnes, Teresa, Yan, Yanfa, & Wei, Su-Huai. Surface stability and the selection rules of substrate orientation for optimal growth of epitaxial II-VI semiconductors. United States. https://doi.org/10.1063/1.4932374
Yin, Wan-Jian, Yang, Ji-Hui, Zaunbrecher, Katherine, Gessert, Tim, Barnes, Teresa, Yan, Yanfa, and Wei, Su-Huai. Mon .
"Surface stability and the selection rules of substrate orientation for optimal growth of epitaxial II-VI semiconductors". United States. https://doi.org/10.1063/1.4932374. https://www.osti.gov/servlets/purl/1225936.
@article{osti_1225936,
title = {Surface stability and the selection rules of substrate orientation for optimal growth of epitaxial II-VI semiconductors},
author = {Yin, Wan-Jian and Yang, Ji-Hui and Zaunbrecher, Katherine and Gessert, Tim and Barnes, Teresa and Yan, Yanfa and Wei, Su-Huai},
abstractNote = {The surface structures of ionic zinc-blende CdTe (001), (110), (111), and (211) surfaces are systematically studied by first-principles density functional calculations. Based on the surface structures and surface energies, we identify the detrimental twinning appearing in molecular beam epitaxy (MBE) growth of II-VI compounds as the (111) lamellar twin boundaries. Here, to avoid the appearance of twinning in MBE growth, we propose the following selection rules for choosing optimal substrate orientations: (1) the surface should be nonpolar so that there is no large surface reconstructions that could act as a nucleation center and promote the formation of twins; (2) the surface structure should have low symmetry so that there are no multiple equivalent directions for growth. These straightforward rules, in consistent with experimental observations, provide guidelines for selecting proper substrates for high-quality MBE growth of II-VI compounds.},
doi = {10.1063/1.4932374},
journal = {Applied Physics Letters},
number = 14,
volume = 107,
place = {United States},
year = {Mon Oct 05 00:00:00 EDT 2015},
month = {Mon Oct 05 00:00:00 EDT 2015}
}
Web of Science
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