Hydrothermal route to ZnO nanocoral reefs and nanofibers

Jin-Ho Choy, J.R.; Eue-Soon Jang, J.R.; Jung-Hee Won, J.R.; Jae-Hun Chung, J.R.; Du-Jeon Jang; Young-Woon Kim
January 2004
Applied Physics Letters;1/12/2004, Vol. 84 Issue 2, p287
Academic Journal
ZnO nanocoral reefs and nanofibers are synthesized on the glass substrate dip coated with ZnO seed with nanoparticles with an average size of 5 nm under a hydrothermal reaction. The ratios of length to diameter for the former and the latter are determined to be 100 and 1000, respectively. In addition, we found that a threshold power density for UV lasing action could be remarkably reduced from 40 kW/cm[sup 2] for the nanocoral reefs to 8 kW/cm[sup 2] for the nanofibers by increasing the cavity length of ZnO nanowires. © 2004 American Institute of Physics.


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