کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1649592 | 1007586 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The effect of surfactants on the morphology and optical properties of precipitated wurtzite ZnO The effect of surfactants on the morphology and optical properties of precipitated wurtzite ZnO](/preview/png/1649592.png)
Wurtzite ZnO crystals were prepared in aqueous solutions with additive-free and additives of sodium dodecyl sulfate (SDS), hexamethylenetetramine (HMT), cetyltrimethylammonium bromide (CTAB), and CTAB/SDS. In all cases, the obtained crystals exhibited the crystal structure of wurtzite ZnO and photoluminescence at UV and yellow regions. The ZnO crystals grown in the HMT solution have a morphology of aggregated rods. In the CTAB solution, rods and nanoparticles of ZnO crystals are obtained and their sizes are smaller than those obtained in other solutions. A unique morphology of aggregated nanosheets was observed for ZnO crystals grown with the mixture of CTAB/SDS. The origin of morphology difference of the ZnO crystals is explained by a chemical interaction between surface of ZnO seed crystal and ionized additives.
Journal: Materials Letters - Volume 63, Issue 17, 15 July 2009, Pages 1489–1492