| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5368265 | Applied Surface Science | 2010 | 4 Pages |
The ZnO/Au nanocomposite formation involves synthesis of Au and ZnO colloidal solutions by 532Â nm pulse laser ablation of metal targets in deionized water followed by laser irradiation of the mixed colloidal solution. The transmission electron microscope (TEM) and high-resolution transmission electron microscope (HRTEM) images show evolution of spherical particles into ZnO/Au nanonetworks with irradiation time. The formation mechanism of the nanonetwork can be explained on the basis of near resonance absorption of 532Â nm irradiation by gold nanoparticles which can cause selective melting and fusion of gold nanoparticles to form network. The ZnO/Au nanocomposites show blue shift in the ZnO exciton absorption and red shift in the Au plasmon resonance absorption due to interfacial charge transfer.
