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

作者：Xu CX; Sun XW^*; Yuen C; Chen BJ; Yu SF; Dong ZL

来源：Applied Physics Letters, 2005, 86(1): 011118.

DOI：10.1063/1.1847716

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 [01 (1) over bar0] 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.

• 出版日期2005-1-3
• 单位东南大学; 南阳理工学院