화학공학소재연구정보센터
Materials Research Bulletin, Vol.46, No.6, 937-940, 2011
Ultrafast carrier dynamics of near-band-edge emission in single-crystal ZnO nanorods
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. (C) 2011 Elsevier Ltd. All rights reserved.