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  • Title: Precursor-induced hydrothermal synthesis of flowerlike cupped-end microrod bundles of ZnO.
    Author: Jiang C, Zhang W, Zou G, Yu W, Qian Y.
    Journal: J Phys Chem B; 2005 Feb 03; 109(4):1361-3. PubMed ID: 16851103.
    Abstract:
    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.
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