| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1794124 | Journal of Crystal Growth | 2008 | 7 Pages |
The effect of solvent composition on the growth of ZnO crystals has been investigated in water–ethanol solution system. Ethanol is found to effectively inhibit the crystal growth along the 〈0 0 0 1〉 direction, leading to the formation of thin disks. Hexagonal nanodisks and near-rounded microdisks have been grown in 1:1 (volume ratio) and 1:9 water–ethanol solutions, respectively. Transmission electron microscopy and selected area electron diffraction results show that the prepared hexagonal nanodisks have a single-crystal structure. In contrast, the near-rounded microdisks have a layer-by-layer structure, suggesting that crystals are grown by outward attachment. A strong sharp UV luminescence and a weak broad green-yellow emission in photoluminescence spectra indicate a high crystal quality of the prepared ZnO nano(micro)disks.
