Thermoelectric Effect and Characterization of MgZnO and InZnO Nanorods

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Abstract:

The present study investigates the effect of Mg and In doping concentrations on thermoelectric and morphology of ZnO nanorods at various temperatures. The Mg and In doping concentration was varied during nanorod growth to obtain various sizes of ZnO:Mg/In nanorods. The doping concentration was strongly positively correlated with the growth of ZnO. The surface current–voltage (IV), piezoelectricity, and the thermoelectric effect of ZnO:Mg were investigated using scanning probe microscopy (SPM). The output surface potentials of the single bending ZnO, ZnO:Mg, and ZnO:In nanorod were 0.004–0.111 V, 1.070–1.466 V, and 0.324–0.416 V, respectively. The obtained nanorod resistances were 432.54–304.57 MΩ at 100 °C, which suggests that the relationship between strain effects and electric current alteration was significant.

Keywords: NANORODS; SCANNING PROBE MICROSCOPY; SCHOTTKY CONTACT; THERMOELECTRIC

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jamr.2012.1089

Publication date: March 1, 2012

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  • Journal of Advanced Microscopy Research (JAMR) provides a forum for rapid dissemination of important developments in high-resolution microscopy techniques to image, characterize and analyze man-made and natural samples; to study physicochemical phenomena such as abrasion, adhesion, corrosion and friction; to perform micro and nanofabrication, lithography, patterning, micro and nanomanipulation; theory and modeling, as well as their applications in all areas of science, engineering, and medicine.
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