Low-temperature hydrothermal synthesize of In2O3 and Sn-doped In2O3 nanocubes

• Main Authors: Chin-Feng, 楊錦鳳
• Other Authors: Yung-Chium Her
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/96468713236692172144

碩士 === 國立中興大學 === 材料工程學系所 === 96 === This research involves low-temperature hydrothermal synthesis of nano structured In2O3 and Sn-doping In2O3 in large superficial measure. In lab experiment, MilliQ water is employed as solvent while urea, PVP and InCl3∙4H2O as precursors. Ultrasonicator is used to well mix precursor-contained solution, which is then transferred to silicon substrates and hold temperature in oven for a period. Experiment result indicates that through a 24-hour deposition at 90°C, the recipe of InCl3∙4H2O, urea and PVP is able to synthesis large area of In2O3 nanocubes on Silicon substrates. Initially synthesized In2O3 nanocubes possesses a length between 500-600 nm. Inspected by XRD, ESCA and TEM, the nanocubes are confirmed as bixbyite structure of In2O3, which is a cubic structure system. Furthermore, through 24-hour deposition at 90°C, an alternative recipe of InCl3∙4H2O, SnCl4∙5H2O, urea and PVP synthesized large area of Sn-doped In2O3 nanocubes on Silicon substrates. Via analysis and inspection using EDS, XRD, ESCA, FTIR and TEM, it is confirmed that tin exists among In2O3 nanocubes with a doping content 3-5 at%.