Electronic and Mechanical Coupling in Bent ZnO Nanowires (pages 4937–4941)
Xiaobing Han, Liangzhi Kou, Xiaoli Lang, Jianbai Xia, Ning Wang, Rui Qin, Jing Lu, Jun Xu, Zhimin Liao, Xinzheng Zhang, Xudong Shan, Xuefeng Song, Jingyun Gao, Wanlin Guo and Dapeng Yu
Article first published online: 13 AUG 2009 | DOI: 10.1002/adma.200900956
A red shift of the exciton of ZnO nanowires is efficiently produced by bending strain, as demonstrated by a low-temperature (81 K) cathodoluminescence (CL) study of ZnO nanowires bent into L- or S-shapes. The figure shows a nanowire (Fig. a) with the positions of CL measurements marked. The corresponding CL spectra—revealing a peak shift and broadening in the region of the bend—are shown in Figure b.