Efficient synthesis of ZnO nanoparticles,nanowalls, and nanowires by thermal decomposition of zinc acetate at a low temperature |
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Authors: | Ruey-Chi Wang and Chun-Cheng Tsai |
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Institution: | (1) Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, Taiwan, 81148 |
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Abstract: | ZnO nanoparticles, nanowires, and nanowalls were synthesized rapidly on Si via thermal decomposition of zinc acetate by a
modified chemical vapor deposition at a low substrate temperature of 200–250°C for the first time. The diameters of the synthesized
nanoparticles and nanowires are around 100 and 30 nm, respectively, and the thickness of nanowalls is around 20 nm. High-resolution
transmission electron microscopy shows that the nanowires as well as nanowalls are single-crystalline, and the nanoparticles
are highly-textured poly-crystalline structures. Room-temperature photoluminescence spectra of the nanostructures show strong
ultraviolet emissions centered at 368–383 nm and weak violet emissions at around 425 nm, indicating good crystal quality.
The study provides a simple and efficient route to synthesize ZnO diverse nanostructures at low temperature. |
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Keywords: | PACS" target="_blank">PACS 81 07 -b 81 16 -c 81 07 Bc 81 05 Dz 81 15 Gh |
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