Directional Lasing And Energy Transfer In Zno Nanotree

F. L. Zhao,C. R. Ding,M. Huang,F. H. Zhao,X. F. Yang,J. G. Zheng,T. R. Zhang,M. M. Wu,Z. R. Tian,H. Z. Wang

2008 2ND IEEE INTERNATIONAL NANOELECTRONICS CONFERENCE, VOLS 1-3（2008）

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Abstract

The obliquely branched nanotree structures have been synthesized with the one-pot synthesis directly on the Zn substrate. The directional lasing spectroscopy of the nanometer branched ZnO crystallite arrays has been measured under high intensity femtosecond laser pulse excitation with femtosecond synchroscan streak camera as the detection system. The directional dependant ultrafast fluorescence emission gives clear evidence that there exists intelligent energy flow of ZnO nano-tree structures. Such processes open a way to fabricate the integrated optoelectronic apparatus.

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Key words

materials,crystallites,crystallization,tree structure,femtosecond laser,energy transfer,one pot synthesis,zinc oxide,fluorescence,lenses,semiconductor lasers,nanostructures,spectroscopy,wide band gap semiconductors,energy flow

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