Morphology-controlled synthesis, characterization and growth mechanism of PbWO4 nano and macrocrystals
2005; Elsevier BV; Volume: 276; Issue: 3-4 Linguagem: Inglês
10.1016/j.jcrysgro.2004.11.428
ISSN1873-5002
AutoresGuangjun Zhou, Mengkai Lü, Feng Gu, Dong Xu, Duorong Yuan,
Tópico(s)Gas Sensing Nanomaterials and Sensors
ResumoPbWO4 nano and macrocrystals with various morphologies have been synthesized via a wet chemical method in the presence of cetyltrimethylammonium bromine (CTAB). The morphological growth processes were investigated and a growth mechanism was proposed. Two different crystal growth processes, the Ostwald ripening process and the oriented attachment process, were held responsible for the formation of the spindle-shaped macrocrystals. The luminescence properties were investigated and the prepared structures displayed a very strong blue/green luminescence at the room temperature. Based on these properties, both the nano and macrostructure materials show promise for applications in the fabrication of photoelectric materials.
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