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An uniform nanostructured array of VO2@SiO2 was grown via depositing VO2 film on SiO2 monolayer array. VO2 films were fabricated by rapid thermal annealing (RTA) of sputtered vanadium films, and SiO2 arrays with diameter of about 600nm were formed using direct assembly at the air-water interface. Much interestingly, the surfaces of SiO2 nanospheres could be regarded as double-sided surfaces with paraboloid-like...