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Strain‐Gradient Effect on Energy Bands in Bent ZnO Microwires
Author(s) -
Han Xiaobing,
Kou Liangzhi,
Zhang Zhuhua,
Zhang Ziyue,
Zhu Xinli,
Xu Jun,
Liao Zhimin,
Guo Wanlin,
Yu Dapeng
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201104372
Subject(s) - materials science , cathodoluminescence , bent molecular geometry , strain (injury) , blueshift , ultimate tensile strength , composite material , temperature gradient , optics , optoelectronics , photoluminescence , luminescence , medicine , physics , quantum mechanics
The table of contents image ilustrates the strain‐gradient effect on the optical‐electronic properties in a bent ZnO microwire , with a much stronger red‐shift on the outer tensile side than a blue‐shift on the inner compressive side. The low temperature cathodoluminescence cross‐sectional scanning spectra on the strain‐neutral middle‐plane are highlighted by thicker black lines, which clearly shows a strain‐gradient induced red‐shift.