LI Xue, LI Jin-hua, FANG Xuan, WEI Zhi-peng, WANG Xiao-hua. Fabrication and Optical Character of High Quality ZnO Microrods [J]. Chinese Journal of Luminescence, 2008,29(6): 937-940
LI Xue, LI Jin-hua, FANG Xuan, WEI Zhi-peng, WANG Xiao-hua. Fabrication and Optical Character of High Quality ZnO Microrods [J]. Chinese Journal of Luminescence, 2008,29(6): 937-940DOI:
We configured reaction solution using zinc acetate [Mg(CH
3
COO)
2
·H
2
O] and methenamine (C
6
H
12
N
4
) with a certain percentage
magnesium acetate [Mg(CH
3
COO)
2
·H
2
O] was added appropriately in the reaction so-lution.High quality ZnO microrods were prepared on the silicon substrate at 90℃ for 24 h by hydro ther malmethod.Surfacemorphology and crystal structure of ZnO microrods are analyzed
using scanning electronmicroscopy (SEM)and X-ray diffraction (XRD).The results show the sample presents a rod-like shape with a hexagonal cross sectionsand typicalmorphology of wurtzite ZnO.The ratio of length and diameterof the ZnO rod is about10:1.And the ZnO microrods grow along [002]
direction.Mg ions are not found in the sample
which probably played the role ofa cata-lyst.Photo luminescence (PL) spectrum of ZnO microrodswasmeasured.Room-temperature PL spectrum of the sam-ple shows an UV luminescence peak located at 384 nm
and the FWHM of the emission peak is only 13 nm
intensity of UV luminescence peak is stronger than thatofvisible luminescence peak