ErAs: (InGaAs)1-x (InAlAs)x alloy power generator modules

Gehong Zeng; Je Hyeong Bahk; John E. Bowers; Joshua M.O. Zide; Arthur C. Gossard; Zhixi Bian; Rajeev Singh; Ali Shakouri; Woochul Kim; Suzanne L. Singer; Arun Majumdar

doi:10.1063/1.2828042

ErAs: (InGaAs)1-x (InAlAs)x alloy power generator modules

Gehong Zeng, Je Hyeong Bahk, John E. Bowers, Joshua M.O. Zide, Arthur C. Gossard, Zhixi Bian, Rajeev Singh, Ali Shakouri, Woochul Kim, Suzanne L. Singer, Arun Majumdar

Department of Mechanical Engineering

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

31 Citations (Scopus)

Abstract

We report a wafer scale approach for the fabrication of 400 element power generator modules composed of 200 n -type ErAs: (InGaAs)0.8 (InAlAs)0.2 and 200 p -type ErAs:InGaAs alloy thermoelectric elements. The thermoelectric properties of the materials were characterized. Two sets of generator modules with the element thicknesses of 20 and 10 μm, respectively, were fabricated. The 20 μm module had an output power density of 2.5 W cm2 and 3.5 V open circuit voltages, and the 10 μm generator modules had an output power density of 1.12 W cm2 and open circuit voltage of 2.1 V. The performance of thermoelectric generator modules can further be improved by increasing the thicknesses of the elements and reducing the electrical and thermal parasitic resistances.

Original language	English
Article number	263510
Journal	Applied Physics Letters
Volume	91
Issue number	26
DOIs	https://doi.org/10.1063/1.2828042
Publication status	Published - 2007

Bibliographical note

Funding Information:
The authors are grateful to Dr. Thierry Caillat for the variable temperature measurements of the electrical conductivity. We also acknowledge useful discussions with Dr. Mihal Gross. This work was supported by the Office of Naval Research Thermionic Energy Conversion Center MURI and ONR under Contract No. N00014-05-1-0611.

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2828042

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title = "ErAs: (InGaAs)1-x (InAlAs)x alloy power generator modules",

abstract = "We report a wafer scale approach for the fabrication of 400 element power generator modules composed of 200 n -type ErAs: (InGaAs)0.8 (InAlAs)0.2 and 200 p -type ErAs:InGaAs alloy thermoelectric elements. The thermoelectric properties of the materials were characterized. Two sets of generator modules with the element thicknesses of 20 and 10 μm, respectively, were fabricated. The 20 μm module had an output power density of 2.5 W cm2 and 3.5 V open circuit voltages, and the 10 μm generator modules had an output power density of 1.12 W cm2 and open circuit voltage of 2.1 V. The performance of thermoelectric generator modules can further be improved by increasing the thicknesses of the elements and reducing the electrical and thermal parasitic resistances.",

author = "Gehong Zeng and Bahk, {Je Hyeong} and Bowers, {John E.} and Zide, {Joshua M.O.} and Gossard, {Arthur C.} and Zhixi Bian and Rajeev Singh and Ali Shakouri and Woochul Kim and Singer, {Suzanne L.} and Arun Majumdar",

note = "Funding Information: The authors are grateful to Dr. Thierry Caillat for the variable temperature measurements of the electrical conductivity. We also acknowledge useful discussions with Dr. Mihal Gross. This work was supported by the Office of Naval Research Thermionic Energy Conversion Center MURI and ONR under Contract No. N00014-05-1-0611.",

year = "2007",

doi = "10.1063/1.2828042",

language = "English",

volume = "91",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

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T2 - (InGaAs)1-x (InAlAs)x alloy power generator modules

AU - Zeng, Gehong

AU - Bahk, Je Hyeong

AU - Bowers, John E.

AU - Zide, Joshua M.O.

AU - Gossard, Arthur C.

AU - Bian, Zhixi

AU - Singh, Rajeev

AU - Shakouri, Ali

AU - Kim, Woochul

AU - Singer, Suzanne L.

AU - Majumdar, Arun

N1 - Funding Information: The authors are grateful to Dr. Thierry Caillat for the variable temperature measurements of the electrical conductivity. We also acknowledge useful discussions with Dr. Mihal Gross. This work was supported by the Office of Naval Research Thermionic Energy Conversion Center MURI and ONR under Contract No. N00014-05-1-0611.

PY - 2007

Y1 - 2007

N2 - We report a wafer scale approach for the fabrication of 400 element power generator modules composed of 200 n -type ErAs: (InGaAs)0.8 (InAlAs)0.2 and 200 p -type ErAs:InGaAs alloy thermoelectric elements. The thermoelectric properties of the materials were characterized. Two sets of generator modules with the element thicknesses of 20 and 10 μm, respectively, were fabricated. The 20 μm module had an output power density of 2.5 W cm2 and 3.5 V open circuit voltages, and the 10 μm generator modules had an output power density of 1.12 W cm2 and open circuit voltage of 2.1 V. The performance of thermoelectric generator modules can further be improved by increasing the thicknesses of the elements and reducing the electrical and thermal parasitic resistances.

AB - We report a wafer scale approach for the fabrication of 400 element power generator modules composed of 200 n -type ErAs: (InGaAs)0.8 (InAlAs)0.2 and 200 p -type ErAs:InGaAs alloy thermoelectric elements. The thermoelectric properties of the materials were characterized. Two sets of generator modules with the element thicknesses of 20 and 10 μm, respectively, were fabricated. The 20 μm module had an output power density of 2.5 W cm2 and 3.5 V open circuit voltages, and the 10 μm generator modules had an output power density of 1.12 W cm2 and open circuit voltage of 2.1 V. The performance of thermoelectric generator modules can further be improved by increasing the thicknesses of the elements and reducing the electrical and thermal parasitic resistances.

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DO - 10.1063/1.2828042

M3 - Article

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SN - 0003-6951

VL - 91

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

M1 - 263510

ER -

ErAs: (InGaAs)1-x (InAlAs)x alloy power generator modules

Abstract

Bibliographical note

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