WEI Zhi-peng, LU You-ming, SHEN De-zhen, LIU Yi-chun, ZHAO Dong-xu, LI Bing-hui, ZHANG Ji-ying, FAN X W. Structure and Optical Characteristics of ZnO Micro-rods Grown by MOCVD[J]. Chinese Journal of Luminescence, 2004,25(2): 139-142
WEI Zhi-peng, LU You-ming, SHEN De-zhen, LIU Yi-chun, ZHAO Dong-xu, LI Bing-hui, ZHANG Ji-ying, FAN X W. Structure and Optical Characteristics of ZnO Micro-rods Grown by MOCVD[J]. Chinese Journal of Luminescence, 2004,25(2): 139-142DOI:
Structure and Optical Characteristics of ZnO Micro-rods Grown by MOCVD
Well-aligned ZnO micro-rods have been prepared on Al
2
O
3
(0001)substrate by metalorganic chemical vapor deposition(MOCVD)with Zn(C
5
H
7
O
2
)
2
as the reactant source.The crystal quality and optical character of the ZnO were studied.X-ray diffration spectra show that ZnO is strongly c-oriented.The morphology of the sample was obtained by SEM.The images indicated the ZnO micro-rods have hexahedral structure with radius of 0.5~1.5μm.A strong ultraviolet(UV)emission is observed at 81~360 K when sample is excited by 325 nm line of a He-Cd laser.In the photoluminescence(PL)spectra
deep level emission can't be seen
indicating that the micro-rods have higher crystalline guality.