Search Result of "Wandee Onreabroy"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Annealed Temperatures on the Morphology of TiO2 Films)

ผู้เขียน:Imgวีรนุช แก้ววิเศษ, ImgWandee Onreabroy, Imgพิเชษฐ ลิ้มสุวรรณ



Titanium dioxide (TiO2) films were prepared by dip-coating method on the glass slide substrates at room temperature. The TiO2 solution was synthesized from titanium tetraisopropoxide:Ti(OC3H7)4 in isopropanol at molar ratio 1:4. This research focus on the surface and roughness of TiO2 films which were characterized by atomic force microscopy (AFM). In the first experiment, TiO2 films were deposited at 1, 5, 10 and 15 layers and annealed at 500 ?C. Then, the films which were deposited for 15 layers were chosen to be annealed at different temperatures of 300, 350, 400, 450 and 500 ?C. The results showed that, when the number of film layers increased, the grain sizes were clearly observed. The grain size depended on the annealing temperature. It was found that at the temperature of 300 to 500 ?C, the grain sizes were 30-40 nm.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 042, Issue 5, Dec 99 - Dec 99, Page 340 - 345 |  PDF |  Page