Tunable electronic properties of silicon nanowires under strain and electric bias
Author(s) -
Alexis Nduwimana,
Xiaoqian Wang
Publication year - 2014
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4890674
Subject(s) - materials science , nanowire , silicon , optoelectronics , density functional theory , condensed matter physics , strain (injury) , biasing , strain engineering , electric field , electrical engineering , voltage , chemistry , physics , computational chemistry , medicine , engineering , quantum mechanics
The electronic structure characteristics of silicon nanowires under strain and electric bias are studied using first-principles density functional theory. The unique wire-like structure leads to distinct spatial distribution of carriers, which can be tailored by applying tensile and compressive strains, as well as by an electric bias. Our results indicate that the combined effect of strain and electric bias leads to tunable electronic structures that can be used for piezo-electric devices
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