Exceptionally Long Exciton Photoluminescence Lifetime in ZnO Tetrapods

作者: Yongchun Zhong , Aleksandra B. Djurišić , Yuk Fan Hsu , Kam Sing Wong , Gerhard Brauer

DOI: 10.1021/JP804132U

关键词:

摘要: The fabrication of ZnO tetrapods an exceptional optical quality, based on a photoluminescence (PL) lifetime in the range tens nanoseconds and absence defect emission, is found to be possible very narrow temperature only. A reduction PL increase emission are observed for both higher lower growth temperatures. obtained optimal order magnitude than best results achieved epilayers single crystals. Temperature dependence high-quality tetrapod samples indicates that dominant recombination processes radiative.

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