The key role of charge carriers scattering on polar optical phonons in semiconductors for thermoelectric energy conversion

Orlov, V. G.; Sergeev, G. S.

doi:10.1016/j.ssc.2013.09.010

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…On the temperature dependence of the conductivity  of massive samples of n-InSb with different concentrations of dopants, a minimum at 250 K was experimentally found [10]. With an increase in the concentration of impurities, the position of the minimum conductivity shifted towards higher temperatures while its absolute 05017-3 magnitude decreased [10]. The presence of a minimum in  was due to an increase in the contribution to the conductivity of the electron-phonon scattering in the temperature range of the Debye temperature.…”

Section: An Analysis Of the Thermoelectric Parameters Of The Insb Whimentioning

confidence: 96%

Thermoelectric Properties of InSb Whiskers

Druzhinin¹,

Ostrovskii²,

Khoverko³

et al. 2020

J. Nano- Electron. Phys.

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The article deals with studies of thermoelectric parameters of InSb whiskers with tin concentration of about 4.4•10 18 cm-3 in the temperature range 4.2-300 K. The resistance and Seebeck coefficient were measured experimentally. The InSb whiskers have shown rather high values of Seebeck coefficient exceeding the values of bulk materials by 2-3 times. Using a special method of heat transfer in the whisker joints, the thermal conductivity of the whisker was simulated. The obtained threshold on the temperature dependence of thermal conductivity for InSb whiskers and nanowires in the range of about 100 K connecting with phonon capture of charge carriers indicates high reliability of the data obtained. As a result, ZT parameter of InSb whiskers versus temperature in the temperature range 4.2-300 K was calculated. The obtained value of ZT parameter 0.15 at room temperature indicates a possibility of the whisker use for thermal converters design.

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Section: An Analysis Of the Thermoelectric Parameters Of The Insb Whimentioning

confidence: 96%