Prospects for SiGe thermoelectric generators

Antonio Samarelli; Lourdes Ferre-LLin; Stefano Cecchi; J. Frigerio; Daniel Chrastina; G. Isella; Elisabeth Müller-Gubler; Tanja Etzelstorfer; Julian Stangl; Yuan Zhang; J.M.R. Weaver; P. Dobson; Douglas J. Paul

doi:10.1016/j.sse.2014.04.003

Prospects for SiGe thermoelectric generators

Antonio Samarelli, Lourdes Ferre-LLin, Stefano Cecchi, J. Frigerio, Daniel Chrastina, G. Isella, Elisabeth Müller-Gubler, Tanja Etzelstorfer, Julian Stangl, Yuan Zhang, J.M.R. Weaver, P. Dobson, Douglas J. Paul

Department of Semiconductor Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Thermoelectric materials are one potential technology that could be used for energy harvesting. Here we report results from nanoscale Ge/SiGe heterostructure materials grown on Si substrates designed to enhance the thermoelectric performance over bulk materials at room temperature. The materials and devices are aimed at integrated energy harvesters for autonomous sensing applications. We report Seebeck coefficients up to 279.5 ± 1.2 μμV/K at room temperature with electrical conductivities of 77,200 S/m which produce a high power factor of 6.02 ± 0.05 mW m−1 K−2 and a ZT of 0.135 ± 0.074 at room temperature. Methods for microfabricating modules will be described along with the first demonstration of power output from flip-chip bonded SiGe legs. Keywords

Original language	English
Pages (from-to)	70-74
Number of pages	5
Journal	Solid-State Electronics
Volume	98
DOIs	https://doi.org/10.1016/j.sse.2014.04.003
Publication status	Published - 2014

Fields of science

103 Physics, Astronomy

JKU Focus areas

Nano-, Bio- and Polymer-Systems: From Structure to Function

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10.1016/j.sse.2014.04.003

Cite this

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title = "Prospects for SiGe thermoelectric generators",

abstract = "Thermoelectric materials are one potential technology that could be used for energy harvesting. Here we report results from nanoscale Ge/SiGe heterostructure materials grown on Si substrates designed to enhance the thermoelectric performance over bulk materials at room temperature. The materials and devices are aimed at integrated energy harvesters for autonomous sensing applications. We report Seebeck coefficients up to 279.5 ± 1.2 μμV/K at room temperature with electrical conductivities of 77,200 S/m which produce a high power factor of 6.02 ± 0.05 mW m−1 K−2 and a ZT of 0.135 ± 0.074 at room temperature. Methods for microfabricating modules will be described along with the first demonstration of power output from flip-chip bonded SiGe legs. Keywords",

author = "Antonio Samarelli and Lourdes Ferre-LLin and Stefano Cecchi and J. Frigerio and Daniel Chrastina and G. Isella and Elisabeth M{\"u}ller-Gubler and Tanja Etzelstorfer and Julian Stangl and Yuan Zhang and J.M.R. Weaver and P. Dobson and Paul, \{Douglas J.\}",

year = "2014",

doi = "10.1016/j.sse.2014.04.003",

language = "English",

volume = "98",

pages = "70--74",

journal = "Solid-State Electronics",

issn = "1879-2405",

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TY - JOUR

T1 - Prospects for SiGe thermoelectric generators

AU - Samarelli, Antonio

AU - Ferre-LLin, Lourdes

AU - Cecchi, Stefano

AU - Frigerio, J.

AU - Chrastina, Daniel

AU - Isella, G.

AU - Müller-Gubler, Elisabeth

AU - Etzelstorfer, Tanja

AU - Stangl, Julian

AU - Zhang, Yuan

AU - Weaver, J.M.R.

AU - Dobson, P.

AU - Paul, Douglas J.

PY - 2014

Y1 - 2014

N2 - Thermoelectric materials are one potential technology that could be used for energy harvesting. Here we report results from nanoscale Ge/SiGe heterostructure materials grown on Si substrates designed to enhance the thermoelectric performance over bulk materials at room temperature. The materials and devices are aimed at integrated energy harvesters for autonomous sensing applications. We report Seebeck coefficients up to 279.5 ± 1.2 μμV/K at room temperature with electrical conductivities of 77,200 S/m which produce a high power factor of 6.02 ± 0.05 mW m−1 K−2 and a ZT of 0.135 ± 0.074 at room temperature. Methods for microfabricating modules will be described along with the first demonstration of power output from flip-chip bonded SiGe legs. Keywords

AB - Thermoelectric materials are one potential technology that could be used for energy harvesting. Here we report results from nanoscale Ge/SiGe heterostructure materials grown on Si substrates designed to enhance the thermoelectric performance over bulk materials at room temperature. The materials and devices are aimed at integrated energy harvesters for autonomous sensing applications. We report Seebeck coefficients up to 279.5 ± 1.2 μμV/K at room temperature with electrical conductivities of 77,200 S/m which produce a high power factor of 6.02 ± 0.05 mW m−1 K−2 and a ZT of 0.135 ± 0.074 at room temperature. Methods for microfabricating modules will be described along with the first demonstration of power output from flip-chip bonded SiGe legs. Keywords

UR - http://www.sciencedirect.com/science/article/pii/S0038110114000513

U2 - 10.1016/j.sse.2014.04.003

DO - 10.1016/j.sse.2014.04.003

M3 - Article

SN - 1879-2405

VL - 98

SP - 70

EP - 74

JO - Solid-State Electronics

JF - Solid-State Electronics

ER -

Prospects for SiGe thermoelectric generators

Abstract

Fields of science

JKU Focus areas

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