TITLE

Ultraviolet amplified spontaneous emission from self-organized network of zinc oxide nanofibers

AUTHOR(S)
Xu, C. X.; Sun, X. W.; Yuen, Clement; Chen, B. J.; Yu, S. F.; Dong, Z. L.
PUB. DATE
January 2005
SOURCE
Applied Physics Letters;1/3/2005, Vol. 86 Issue 1, p011118
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Self-organized zinc oxide (ZnO) nanofiber network with six-fold symmetry was fabricated on ZnO-buffered (0001) sapphire substrate with patterned gold catalyst by vapor-phase transport method. From the ZnO buffer layer, hexagonal ZnO nanorods with identical in-plane structure grew epitaxially along [0001] orientation to form vertical stems. The nanofiber branches grew horizontally from six side-surfaces of the vertical stem along [0110] and other equivalent directions. The aligned network structure constructed a waveguide array with optical gain. Ultraviolet amplified spontaneous emission was observed along the side-branching nanofibers when the aligned ZnO network was excited by a frequency-tripled Nd:YAG laser.
ACCESSION #
15593159

 

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