R. Kurniawan, T.E. Setyawan, W.P. Agista, S. Amalia, Z.A. Pangestu, N.E.A. Wahyuni, N.S. Febrianti, M.H. Habani
A highly (002)-oriented ZnO NRs on the Si/SiO2 substrate was successfully synthesized by the spray-hydrothermal method, where ZnO nanoparticles (ZnO NPs) were used as templates. Interestingly, by varying deposition temperatures from 150 to 350 °C, we successfully modified the orientation of the nanorod from vertical/horizontal to globular. This result is related to the agglomeration of ZnO NPs in the deposition process. Furthermore, globular ZnO NR showed a high electron transfer up to ∼9×1014 Ω-1 cm-1 eV with the presence of an excitonic state. Our results will provide an alternative in designing the structure and morphology of ZnO NR at a more affordable cost for high-performance optoelectronic applications. © Published under licence by IOP Publishing Ltd.
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, East Java Malang, 65145, Indonesia; Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5, East Java Malang, 65145, Indonesia
