Journal
MATERIALS LETTERS
Volume 63, Issue 17, Pages 1489-1492Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2009.03.054
Keywords
Zinc oxide; Surfactant; Structure analysis; Nanomaterials
Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) Japan
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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 aggregate 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. (C) 2009 Elsevier B.V. All rights reserved.
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