Bulk Synthesis and Structural Determination of High Mobility Multication Transparent Conducting Oxides

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This work reports the synthesis of novel quaternary transparent conducting oxide Cd(1-x)Sn(1-x)InxGaxO3( x=0.1, 0.2, 0.3) at 1225°C via solid state reaction route. The investigations on structural, optical and electrical properties have been carried out. Powder X-ray diffraction revealed the phase purity and distorted orthorhombic structure of the species synthesized. Distortion of the structure is due to the substitution of In3+ and Ga3+ in CdSnO3 (JCPDS card no.340885) matrix. The optical transmittance approximated by the reflectance shows considerable increase in the transmittance of visible light along with the increase of substitution. Typical Burstein-Moss effect is observed with the increase in x value as a variation in optical bandgap from 2.7 to 2.9eV. Four point Hall measurements by Van der-Pauw method exhibit superior properties in charge carrier concentration and mobility. Maximum bulk charge concentration of 4.78x1017 cm-3 is obtained for x=0.3. Hall mobility depends on carrier concentration and steeply increases with the carrier concentration. Considerable drop in the resistivity of the material along with higher transmittance is a critical finding in the experiment.

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Periodical:

Solid State Phenomena (Volume 194)

Edited by:

Yuriy Verbovytskyy and António Pereira Gonçalves

Pages:

124-128

Citation:

P. Jayaram et al., "Bulk Synthesis and Structural Determination of High Mobility Multication Transparent Conducting Oxides", Solid State Phenomena, Vol. 194, pp. 124-128, 2013

Online since:

November 2012

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$38.00

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