Structure and Photoluminescence Properties of ZnO Nanocombs Synthesized from Metal Zn Powder
Abstract:High quality ZnO nanocombs have been fabricated in high yields through oxidative evaporation of pure zinc powder without catalyst at 600–650 °C. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations showed that the resulting ZnO nanostructures have one main type of single crystal morphology. Investigations through XRD revealed that the growth of the synthesized ZnO nanostructures was controlled by a vapor–solid (VS) mechanism. The band gaps of the products are ∼3.26 eV determined from UV/visible absorption spectral results. Room temperature photoluminescence (PL) spectra of the nanocombs showed a UV emission at 388 nm and a broad green emission at 520 nm. Such novel structures are promising for applications in some special fields.
Document Type: Research Article
Publication date: March 1, 2012
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- Journal of Advanced Microscopy Research (JAMR) provides a forum for rapid dissemination of important developments in high-resolution microscopy techniques to image, characterize and analyze man-made and natural samples; to study physicochemical phenomena such as abrasion, adhesion, corrosion and friction; to perform micro and nanofabrication, lithography, patterning, micro and nanomanipulation; theory and modeling, as well as their applications in all areas of science, engineering, and medicine.
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