Development of a Thermoelectric Nanowire Characterization Platform (TNCP) for Structural and Thermoelectric Investigation of Single Nanowires

Wang, Zhi; Moosavi, S. Hoda; Kroener, Michael; Woias, Peter

doi:10.1002/9783527672608.ch12

Cited by 4 publications

(5 citation statements)

References 43 publications

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“…In the following, we present four general errors that can arise during the nanowire thermovoltage acquisition procedure: During the fabrication process of both platforms, as presented in [ 2 , 21 ], a 20 nm-thick Ti layer is sputtered as adhesion promoter for the Pt thin film. Therefore, the Seebeck coefficient is in fact measured with respect to these two metal layers as a reference.…”

Section: Discussionmentioning

confidence: 99%

“…To gain insight into the correlation of the various physical effects and their influence on the thermoelectric performance, it is important to perform measurements on a single individual nanowire. This is enabled by making use of our previously-reported platform [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…We compare the Seebeck coefficient of three silver nanowires taken from the same batch, but measured the values by using two different platforms, called TNCP a and b . TNCP a , as has been addressed in [ 2 , 15 , 16 , 17 ]. TNCP b is the next generation of these characterization platforms, redesigned to enhance performance, mechanical stability and usability.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of the MEMS Measurement Platform Design on the Seebeck Coefficient Measurement of a Single Nanowire

Moosavi¹,

Kojda

Kockert

et al. 2018

Nanomaterials

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In order to study the thermoelectric properties of individual nanowires, a thermoelectric nanowire characterization platform (TNCP) has been previously developed and used in our chair. Here, we report on a redesigned platform aiming to optimize performance, mechanical stability and usability. We compare both platforms for electrical conductivity and the Seebeck coefficient for an individual Ag nanowire of the previously-used batch and for comparable measurement conditions. By this, the measurement performance of both designs can be investigated. As a result, whereas the electrical conductivity is comparable, the Seebeck coefficient shows a 50% deviation with respect to the previous studies. We discuss the possible effects of the platform design on the thermoelectric measurements. One reason for the deviation of the Seebeck coefficient is the design of the platform leading to temperature gradients along the bond pads. We further analyze the effect of bonding materials Au and Pt, as well as the effect of temperature distributions along the bond pads used for the thermovoltage acquisition. Another major reason for the variation of the measurement results is the non-homogeneous temperature distribution along the thermometer. We conclude that for the measurement of small Seebeck coefficients, an isothermal positioning of voltage-probing bond pads, as well as a constant temperature profile at the measurement zone are essential.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effect of the MEMS Measurement Platform Design on the Seebeck Coefficient Measurement of a Single Nanowire

Moosavi¹,

Kojda

Kockert

et al. 2018

Nanomaterials

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“…This wasted energy originates from numerous sources such as mining and smelting plants, factories, electricity generators, air-conditioning and lighting appliances, vehicles' engines, pipelines, brakes and exhausts, and even the human body [2], [3]. TEGs are made of 2 types of semiconducting materials, one is doped to be n-type and the other is doped to be p-type [4], [5]. One side of the TEG receives heating at the hot side (Th: high temperature side), while the other side has lower temperature (Tc: cold temperature side).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of voltage generation for thermoelectric generator using parabolic pulsed heating

Panmuang

Photong

2022

IJEECS

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This paper presents the results of investigations of the impact of parabolic pulsed heating on output voltage levels of a thermoelectric generator. The experiment was set up and tested under different test conditions. The output voltage levels were investigated. The experimental results showed that applying parabolic pulsed heating of 40, 60, 80 and 100 °C significantly maintained the output voltage levels of thermoelectric generator at about 80-95% which was different from steady heating case which was about 10-30% of maximum voltage level. Moreover, the parabolic pulse heating technique allows the heatsink to not be heated continuously and then the high temperature could be released out from a heat exchanger outside the heating period. This causes the next heating period to have a temperature difference between both sides of the device, and for that reason, could provide more power and efficiency.

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“…2. Early processed platform: Here, the platform is batch-fabricated first and the nanowires are integrated afterwards [8]. This approach provides a true "hand-out" measurement chip which can be used for different nanowire studies.…”

Section: Characterization Platformmentioning

confidence: 99%

Thermoelectric Measurement of a Single, TiO2-Catalyzed Bi2Te3 Nanowire

Moosavi¹,

Kojda

Kockert

et al. 2017

Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017

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Development of a Thermoelectric Nanowire Characterization Platform (TNCP) for Structural and Thermoelectric Investigation of Single Nanowires

Cited by 4 publications

References 43 publications

The Effect of the MEMS Measurement Platform Design on the Seebeck Coefficient Measurement of a Single Nanowire

The Effect of the MEMS Measurement Platform Design on the Seebeck Coefficient Measurement of a Single Nanowire

Enhancement of voltage generation for thermoelectric generator using parabolic pulsed heating

Thermoelectric Measurement of a Single, TiO2-Catalyzed Bi2Te3 Nanowire

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