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Fabrication of hollow ZnO nanostructures by a CTAB‐assisted chemical bath deposition method
Author(s) -
Hou Ying,
Yang Ming
Publication year - 2014
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201400231
Subject(s) - wurtzite crystal structure , nanostructure , chemical bath deposition , materials science , chemical engineering , deposition (geology) , fabrication , nanotechnology , ultraviolet , nanoparticle , zinc , thin film , optoelectronics , metallurgy , medicine , paleontology , alternative medicine , pathology , sediment , engineering , biology
ZnO films consisted of hollow nanostructures were prepared by a CTAB‐assisted chemical bath deposition (CBD) method. ZnO rings, bowls and assemblies of hollow structures were successfully obtained on different substrates. Dense ZnO films consisted of sunken prisms can also be achieved by controlling the concentration of CTAB. The influences of reactant concentrations, types of the substrates and pre‐coated ZnO nanoparticles on the formation of ZnO films were examined. XRD patterns indicated the Wurtzite structure of ZnO and the preferred growth direction is [001]. The role of CTAB in CBD process was discussed and the evolution of different ZnO nanostructures was studied based on the observation of SEM. A plausible crystal growth mechanism was proposed for the formation of ZnO rings and bowls. The investigation of optical properties showed that high concentration of CTAB can improve the ultraviolet emission.