Influence of ensembles of gold nanoparticles on the growth of ZnO on the sapphire (0001) surface

Autor: L. E. Lee, V. M. Kanevsky, A. M. Ismailov, V. A. Babaev, A. E. Muslimov, E. V. Rakova, A. V. Butashin, V. P. Vlasov
Rok vydání: 2014
Předmět:
Zdroj: Crystallography Reports. 59:736-738
ISSN: 1562-689X
1063-7745
Popis: Gold is deposited on sapphire (0001) substrates by vacuum sputtering to form an ensemble of nanoparticles on the surface. Then the substrates are transferred to a magnetron sputtering chamber to be heated to 650°C and coated by a ZnO layer. The resulting layers are investigated by scanning electron microscopy, atomic force microscopy, electron diffraction, and photoluminescence. It is established that the Au sublayer ensures a higher quality of the ZnO structure and enhances photoluminescence. The differences in the morphology of ZnO structures is explained by the Au aggregation during substrate heating before ZnO deposition.
Databáze: OpenAIRE