Fabrication and transformation of dense SnO2 via laser ablation condensation |
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| Authors: | Wan-Ju Tseng Shuei-Yuan Chen |
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| Institution: | a Institute of Materials Science and Engineering, Department of Materials and Optoelectronic Science, Center for Nanoscience and Nanotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
b Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung, Taiwan, ROC |
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| Abstract: | Dense SnO2 nanocondensates with fluorite-type-related structures have been synthesized via severe heating-cooling under energetic Nd-YAG laser pulse irradiation of the Sn target in oxygen ambient. Transmission electron microscopic observations indicated that the fluorite type transformed in a martensitic manner into a baddeleyite-type structure with accompanied dislocations, twinning, commensurate shearing and shape change. The Pa3¯-modified fluorite-type structure was hardly observed possibly due to its transformation into α-PbO2 type and then rutile-type structures in the dynamic process. |
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| Keywords: | A Nanostructure B Laser annealing C Electron microscopy D Crystal structure D Defects |
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