Low-temperature chemical synthesis methods physical and chemical properties, such as a wide band can provide large scale and low-cost fabrication. PACS: 78.55.Et, 81.15.Rs, 61.46.Km Introduction For many of such devices, a large-scale, low-cost fabri- ZnO is a semiconductor material for various photonic cation of high optical and crystalline quality ZnO is and electrical applications. It is found that all studied technological parameters affect the excitonic photoluminescence in ZnO nanorods. High-resolution photoluminescence measurements at 10 K reveal fine structure of the NBE band with the dominant peaks related to the bound exciton transitions. A dominant near band edge (NBE) emission is observed at 300 K and at 10 K.
We report the effect of the variation in deposition parameters (substrate type, growth temperature, spray rate, solvent type) on the photoluminescence properties of the spray-deposited ZnO nanorods. The ZnO rods (length 500-1,000 nm, diameter 100-300 nm) were grown in air onto a preheated soda-lime glass (SGL) or ITO/SGL substrate by low-cost chemical spray pyrolysis method using zinc chloride precursor solutions and growth temperatures in the range of 450-550☌. Photoluminescence of highly structured ZnO layers comprising well-shaped hexagonal rods is presented. Kärber, Erki Raadik, Taavi Dedova, Tatjana Krustok, Jüri Mere, Arvo Mikli, Valdek Krunks, Malle Photoluminescence of spray pyrolysis deposited ZnO nanorods Photoluminescence of spray pyrolysis deposited ZnO nanorods
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