1. Ultrafast carrier dynamics of near-band-edge emission in single-crystal ZnO nanorods
- Author
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Wang, Dandan, Xing, Guozhong, Wang, Xinying, Yin, Dongmei, Zhou, Mi, Guo, Qing, Yang, Jinghai, Yang, Lili, Cao, Jian, and Yan, Yongsheng
- Subjects
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ZINC oxide , *NANOSTRUCTURED materials , *PHOTOLUMINESCENCE , *INORGANIC synthesis , *CRYSTALS , *EXCITON theory , *OPTICAL properties , *SEMICONDUCTORS - Abstract
Abstract: We report on rational synthesis and optical characteristics of highly crystallined ZnO nanorods which were grown by a facile chemical vapor transport method. Temperature-dependent photoluminescence spectra of as-fabricated ZnO nanorods are dominated by near-band-edge emission with a characteristic fine structure due to high crystallinity. Furthermore, the recombination emission involving carrier dynamics of near-band-edge emission in ZnO nanorods was systematically investigated by temperature-dependent time-resolved photoluminescence spectroscopy. Recombination peaks pertaining to the exciton emissions are monitored and resolved in both temporal and spatial regimes. [Copyright &y& Elsevier]
- Published
- 2011
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