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Twinning effect on photoluminescence spectra of ZnSe nanowires
- Authors
- Xu, Jing; Wang, Chunrui; Wu, Binhe; Xu, Xiaofeng; Chen, Xiaoshuang; Oh, Hongseok; Baek, Hyeonjun; Yi, Gyu-Chul
- Issue Date
- Nov-2014
- Publisher
- AMER INST PHYSICS
- Citation
- JOURNAL OF APPLIED PHYSICS, v.116, no.17
- Journal Title
- JOURNAL OF APPLIED PHYSICS
- Volume
- 116
- Number
- 17
- ISSN
- 0021-8979
- Abstract
- Bandgap engineering in a single material along the axial length of nanowires may be realized by arranging periodic twinning, whose twin plane is vertical to the axial length of nanowires. In this paper, we report the effect of twin on photoluminescence of ZnSe nanowires, which refers to the bandgap of it. The exciton-related emission peaks of transverse twinning ZnSe nanowires manifest a 10-meV-blue-shift in comparison with those of longitudinal twinning ZnSe nanowires. The blue-shift is attributed to quantum confinement effect, which is influenced severely by the proportion of wurtzite ZnSe layers in ZnSe nanowires. (C) 2014 AIP Publishing LLC.
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Related Researcher
- Oh, Hongseok
- College of Natural Sciences (Department of Physics)