Strain-Gradient Effect on Energy Bands in Bent ZnO Microwires (pages 4707–4711)
Xiaobing Han, Liangzhi Kou, Zhuhua Zhang, Ziyue Zhang, Xinli Zhu, Jun Xu, Zhimin Liao, Wanlin Guo and Dapeng Yu
Version of Record online: 26 MAR 2012 | DOI: 10.1002/adma.201104372
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.