The temperature dependence of Hall mobility of the oxide thin film In<sub>2</sub>O<sub>3</sub>-ZnO

Yamada, Kazumasa; Shinozaki, B.; Yano, Koki; Nakamura, Hiroaki

doi:10.1088/1742-6596/400/4/042069

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…For the electrodes, we deposited thin Au contacts on the PANI films. An external magnetic field H was perpendicularly applied to the film surface, of up to H = 1.35 T. The equipment used for the Hall measurement was reported in a previous paper [15]. We used the Keithley 6517B and 6514 electrometers for the DC voltage measurements, as well as the Keithley 220 programmable current source.…”

Section: Sample Preparation and Experimental Proceduresmentioning

confidence: 99%

Temperature dependence of mobility of conducting polymer polyaniline with secondary dopant

et al. 2019

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The conductivity σ and carrier density n of the conducting polymer polyaniline were investigated by changing the concentration x of a secondary dopant, meta-cresol. We found that σ changes by four orders of magnitude within the x-range of 1-10%, while n, as estimated from the Hall measurements, shows a weak dependence on x in the region of 2 % < x < 50 %. These results suggest that σ can be enhanced by the change in the mobility µ. We analyzed the temperature dependence of µ by not only the combination of two different types of scattering mechanism, but also by the polaron hopping model. The experimental data of µ(T ) can be explained well by the latter model with reasonable fitting parameter values of a small-polaron binding energy and a longitudinal optical phonon frequency.

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Section: Sample Preparation and Experimental Proceduresmentioning

confidence: 99%