Synthesis and characterization of Indium Oxide nanoparticles using indium nitrate and polyvinyl pyrrolidone (PVP) as precursors

Somchai Sonsupap; Ekaphan Swatsitang; Santi Maensiri; Kwanruthai Wongsaprom

Synthesis and characterization of Indium Oxide nanoparticles using indium nitrate and polyvinyl pyrrolidone (PVP) as precursors

Somchai Sonsupap, Ekaphan Swatsitang, Santi Maensiri and Kwanruthai Wongsaprom
* Author for corresponding; e-mail address: wkwanruthai@gmail.com
Volume: Vol.42 No.3 (JULY 2015)
Research Article
DOI:
Received: 21 August 2013, Revised: -, Accepted: 29 January 2014, Published: -

Citation: Sonsupap S., Swatsitang E., Maensiri S. and Wongsaprom K., Synthesis and characterization of Indium Oxide nanoparticles using indium nitrate and polyvinyl pyrrolidone (PVP) as precursors, Chiang Mai Journal of Science, 2015; 42(3): 752-760.

Abstract

This paper reports the synthesis and characterization of In₂O₃ nanoparticles by a simple polymer complex method using indium (III) nitrate and polyvinyl pyrrolidone (PVP) as the starting chemicals. The precursors were calcined at different temperatures to obtain In₂O₃nanoparticles. The XRD and electron diffraction analysis results indicated that the In₂O₃ samples had a cubic structure without any impurity phases.The FT-IR analysis result confirmed the formation of In₂O₃. TEM revealed that the In₂O₃samples consist of crystalline particle of 14.6– 24.6 nm which are weakly agglomerated. UV-vis spectroscopy was also performed to study the optical properties of synthesized In₂O₃samples. The estimated band gap of the samples was 3.70-3.93 eV.

Keywords: Indium oxide, Nanoparticles, Polyvinyl pyrrolidone (PVP), Cubic structure and Transmission electron microscopy

Chiang Mai Journal of Science

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