title: Seed/catalyst-free growth of zinc oxide nanostructures on multilayer graphene by thermal evaporation.
abstract: We report the seed/catalyst-free growth of ZnO on multilayer graphene by thermal evaporation of Zn in the presence of O2 gas. The effects of substrate temperatures were studied. The changes of morphologies were very significant where the grown ZnO structures show three different structures, i.e., nanoclusters, nanorods, and thin films at 600°C, 800°C, and 1,000°C, respectively. High-density vertically aligned ZnO nanorods comparable to other methods were obtained. A growth mechanism was proposed based on the obtained results. The ZnO/graphene hybrid structure provides several potential applications in electronics and optoelectronics.
authors.forename: Nurul Fariha
authors.initials: NF
authors.lastname: Ahmad
authors.forename: Nurul Izni
authors.initials: NI
authors.lastname: Rusli
authors.forename: Mohamad Rusop
authors.initials: MR
authors.lastname: Mahmood
authors.forename: Kanji
authors.initials: K
authors.lastname: Yasui
authors.affiliation: Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia. manaf@fke.utm.my.
authors.forename: Abdul Manaf
authors.initials: AM
authors.lastname: Hashim