Nano Archive

Side-by-Side In(OH)3 and In2O3 Nanotubes: Synthesis and Optical Properties

Tao, Xiaojun and Sun, Lei and Li, Zhiwei and Zhao, Yanbao (2009) Side-by-Side In(OH)3 and In2O3 Nanotubes: Synthesis and Optical Properties. Nanoscale Research Letters, 5 (2). pp. 383-388.


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A simple and mild wet-chemical approach was developed for the synthesis of one-dimensional (1D) In(OH)3 nanostructures. By calcining the 1D In(OH)3 nanocrystals in air at 250 °C, 1D In2O3 nanocrystals with the same morphology were obtained. TEM results show that both 1D In(OH)3 and 1D In2O3 are composed of uniform nanotube bundles. SAED and XRD patterns indicate that 1D In(OH)3 and 1D In2O3 nanostructures are single crystalline and possess the same bcc crystalline structure as the bulk In(OH)3 and In2O3, respectively. TGA/DTA analyses of the precursor In(OH)3 and the final product In2O3 confirm the existence of CTAB molecules, and its content is about 6%. The optical absorption band edge of 1D In2O3 exhibits an evident blueshift with respect to that of the commercial In2O3 powders, which is caused by the increasing energy gap resulted from decreasing the grain size. A relatively strong and broad purple-blue emission band centered at 440 nm was observed in the room temperature PL spectrum of 1D In2O3 nanotube bundles, which was mainly attributed to the existence of the oxygen vacancies.

Item Type:Article
Uncontrolled Keywords:Side-by-side - In(OH)3 - In2O3 - Nanotubes - Wet-chemical approach
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanochemistry
ID Code:8151
Deposited By:Lesley Tobin
Deposited On:22 Mar 2010 14:22
Last Modified:22 Mar 2010 14:22

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