Microstructural, electrical and optical properties of indium tin oxide (ITO) nanoparticles synthesized by co-precipitation method

Journal Article · Sun Apr 15 00:00:00 EDT 2012 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2011.12.040· OSTI ID:22212498

Senthil, Karuppanan ^[1]

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1. School of Advanced Materials and Science and Engineering, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of)

Highlights: Black-Right-Pointing-Pointer The grain size of the ITO is decreased from 28.7 to 9.0 nm by increasing Sn dopant. Black-Right-Pointing-Pointer The strain values increased with the incorporation of Sn in In{sub 2}O{sub 3} host lattice. Black-Right-Pointing-Pointer The lower resistivity of 4.9 {Omega} cm is obtained for 10 at.% Sn doped ITO. Black-Right-Pointing-Pointer The band gap varies from 3.62 to 3.89 eV with dopant concentration of Sn. -- Abstract: In the present study, the synthesis of Tin doped indium oxide (ITO) nanopowder at different compositions (In/Sn = 0, 5, 10, 15 at %) was carried out by co-precipitation method. The decomposition of precipitated indium tin acetylacetonate precursor to form In{sub 2}O{sub 3}-SnO{sub 2} (Sn{sub 1-x}In{sub x}O{sub 2}) at 400 Degree-Sign C was confirmed by the thermal and FTIR studies. The changes in strain and grain size of the synthesized particle with respect to dopant concentration were determined from the X-ray diffraction (XRD) analysis. Transmission electron microscopy (TEM) images support to confirm the grain size. The optical properties on ITO nanoparticles were analyzed with UV-visible spectroscopy, and band gap was found to vary from 3.62 to 3.89 eV with Sn dopant concentration. This variation was ascribed to the quantum confinement effect.

• OSTI ID: 22212498
• Journal Information: Materials Research Bulletin, Vol. 47, Issue 4; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
COPRECIPITATION
DECOMPOSITION
DOPED MATERIALS
ELECTRICAL PROPERTIES
FOURIER TRANSFORMATION
GRAIN SIZE
INDIUM
INDIUM OXIDES
INFRARED SPECTRA
NANOSTRUCTURES
OPTICAL PROPERTIES
POWDERS
SEMICONDUCTOR MATERIALS
SPECTROSCOPY
SYNTHESIS
TIN OXIDES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION