Precursor-induced hydrothermal synthesis of flowerlike cupped-end microrod bundles of ZnO.
Flowerlike cupped-end ZnO microrod bundles have been hydrothermally synthesized from precursor ZnCl2(N2H4)2 in sheet shape at 140 degrees C for 12 h; under the same conditions using the same precursor in rod shape, uniform ZnO nanorods were obtained. XRD pattern indicated the sample is ZnO with hexagonal cell contants a = 3.251 A and c = 5.206 A. FE-SEM and TEM show the formation process of the ZnO sample. HRTEM revealed that the flowerlike cupped-end ZnO microrod bundles grow along the [101] axis. The UV emission peak at approximately 396 nm and the blue band emission peak at approximately 469 nm were observed by PL spectra. A possible formation mechanism was proposed.
Jiang
Changlong
C
Structure Research Laboratory and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
Zhang
Wangqun
W
Zou
Guifu
G
Yu
Weicao
W
Qian
Yitai
Y