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In this work, micropillar array structures with overhang roofs which increase the switching range of the TiO2 photoresponsive wettability, have been fabricated. The liquid droplet placed on the micropillar array exhibits the Cassie–Baxter superhydrophobic state because of the receding of the liquid–air interface to the pillar top, when its contact angle (θTiO2) on the TiO2 surface exceeds than the...
A CF4 dry etch recipe for TiO2 was optimized for nanostructured thin films. The impact of our etching process and ultraviolet irradiation of nanostructured relative humidity (RH) sensors was studied. Reactive ion etching of titanium dioxide decreased device adsorption response time by opening high diffusivity channels while retaining the high surface area and high dynamic range of the interdigitated...
The Fe3+-doped and undoped TiO2 nanoparticles have been prepared employing sol-gel method with hydrolysis mechanism. The nanoparticles were characterized with powder X-ray diffraction and scanning electron microscopy. The experimental results showed that Fe3+-doped TiO2 possess the average particle size in the nanoscale range. The photocatalytic performance of the nanoparticles was observed for degradation...
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