Segmented power generator modules of Bi2Te3 and ErAs:InGaAlAs embedded with ErAs nanoparticles

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

Research output: Contribution to journalConference article

Abstract

We report the fabrication and characterization of segmented element power generator modules of 254 thermoelectric elements. The element is 1 mm × 1 mm in area, which consists of 300 μm thickness Bi2Te3 and 50 μm thickness ErAs:(InGaAs)1-x(InAlAs)x, so that each segment can work at different temperature ranges. Erbium arsenide metallic nanoparticles are incorporated to create scattering centers for middle and long wavelength phonons, provide charge carriers, and form local Schottky barriers for electron filtering. The thermoelectric properties of ErAs:InGaAlAs were characterized by variable temperature measurements of thermal conductivity, electrical conductivity and Seebeck coefficient from 300 K to 600 K. Generator modules of Bi2Te3 and ErAs:InGaAlAs segmented elements were fabricated and an output power over 5.5 W was measured. The performance of the thermoelectric generator modules can further be improved by improving the thermoelectric properties of the element material, and reducing the electrical and thermal parasitic losses.

Original languageEnglish
Pages (from-to)435-440
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Volume1044
Publication statusPublished - 2008 Oct 9
EventThermoelectric Power Generation - Boston, MA, United States
Duration: 2007 Nov 262007 Nov 29

Fingerprint

Erbium
electric generators
Seebeck coefficient
Phonons
Charge carriers
Temperature measurement
Thermal conductivity
modules
Scattering
Nanoparticles
Fabrication
Wavelength
nanoparticles
Electrons
thermoelectric generators
Seebeck effect
Temperature
erbium
temperature measurement
charge carriers

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Zeng, G., Bahk, J. H., Bowers, J. E., Lu, H., Zide, J. M. O., Gossard, A. C., ... Majumdar, A. (2008). Segmented power generator modules of Bi2Te3 and ErAs:InGaAlAs embedded with ErAs nanoparticles. Materials Research Society Symposium Proceedings, 1044, 435-440.
Zeng, Gehong ; Bahk, Je Hyeong ; Bowers, John E. ; Lu, Hong ; Zide, Joshua M.O. ; Gossard, Arthur C. ; Singh, Rajeev ; Bian, Zhixi ; Shakouri, Ali ; Singer, Suzanne L. ; Kim, Woochul ; Majumdar, Aran. / Segmented power generator modules of Bi2Te3 and ErAs:InGaAlAs embedded with ErAs nanoparticles. In: Materials Research Society Symposium Proceedings. 2008 ; Vol. 1044. pp. 435-440.
@article{6af3fd6d35b14f21b099c80ec36442bd,
title = "Segmented power generator modules of Bi2Te3 and ErAs:InGaAlAs embedded with ErAs nanoparticles",
abstract = "We report the fabrication and characterization of segmented element power generator modules of 254 thermoelectric elements. The element is 1 mm × 1 mm in area, which consists of 300 μm thickness Bi2Te3 and 50 μm thickness ErAs:(InGaAs)1-x(InAlAs)x, so that each segment can work at different temperature ranges. Erbium arsenide metallic nanoparticles are incorporated to create scattering centers for middle and long wavelength phonons, provide charge carriers, and form local Schottky barriers for electron filtering. The thermoelectric properties of ErAs:InGaAlAs were characterized by variable temperature measurements of thermal conductivity, electrical conductivity and Seebeck coefficient from 300 K to 600 K. Generator modules of Bi2Te3 and ErAs:InGaAlAs segmented elements were fabricated and an output power over 5.5 W was measured. The performance of the thermoelectric generator modules can further be improved by improving the thermoelectric properties of the element material, and reducing the electrical and thermal parasitic losses.",
author = "Gehong Zeng and Bahk, {Je Hyeong} and Bowers, {John E.} and Hong Lu and Zide, {Joshua M.O.} and Gossard, {Arthur C.} and Rajeev Singh and Zhixi Bian and Ali Shakouri and Singer, {Suzanne L.} and Woochul Kim and Aran Majumdar",
year = "2008",
month = "10",
day = "9",
language = "English",
volume = "1044",
pages = "435--440",
journal = "Materials Research Society Symposium - Proceedings",
issn = "0272-9172",
publisher = "Materials Research Society",

}

Zeng, G, Bahk, JH, Bowers, JE, Lu, H, Zide, JMO, Gossard, AC, Singh, R, Bian, Z, Shakouri, A, Singer, SL, Kim, W & Majumdar, A 2008, 'Segmented power generator modules of Bi2Te3 and ErAs:InGaAlAs embedded with ErAs nanoparticles', Materials Research Society Symposium Proceedings, vol. 1044, pp. 435-440.

Segmented power generator modules of Bi2Te3 and ErAs:InGaAlAs embedded with ErAs nanoparticles. / Zeng, Gehong; Bahk, Je Hyeong; Bowers, John E.; Lu, Hong; Zide, Joshua M.O.; Gossard, Arthur C.; Singh, Rajeev; Bian, Zhixi; Shakouri, Ali; Singer, Suzanne L.; Kim, Woochul; Majumdar, Aran.

In: Materials Research Society Symposium Proceedings, Vol. 1044, 09.10.2008, p. 435-440.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Segmented power generator modules of Bi2Te3 and ErAs:InGaAlAs embedded with ErAs nanoparticles

AU - Zeng, Gehong

AU - Bahk, Je Hyeong

AU - Bowers, John E.

AU - Lu, Hong

AU - Zide, Joshua M.O.

AU - Gossard, Arthur C.

AU - Singh, Rajeev

AU - Bian, Zhixi

AU - Shakouri, Ali

AU - Singer, Suzanne L.

AU - Kim, Woochul

AU - Majumdar, Aran

PY - 2008/10/9

Y1 - 2008/10/9

N2 - We report the fabrication and characterization of segmented element power generator modules of 254 thermoelectric elements. The element is 1 mm × 1 mm in area, which consists of 300 μm thickness Bi2Te3 and 50 μm thickness ErAs:(InGaAs)1-x(InAlAs)x, so that each segment can work at different temperature ranges. Erbium arsenide metallic nanoparticles are incorporated to create scattering centers for middle and long wavelength phonons, provide charge carriers, and form local Schottky barriers for electron filtering. The thermoelectric properties of ErAs:InGaAlAs were characterized by variable temperature measurements of thermal conductivity, electrical conductivity and Seebeck coefficient from 300 K to 600 K. Generator modules of Bi2Te3 and ErAs:InGaAlAs segmented elements were fabricated and an output power over 5.5 W was measured. The performance of the thermoelectric generator modules can further be improved by improving the thermoelectric properties of the element material, and reducing the electrical and thermal parasitic losses.

AB - We report the fabrication and characterization of segmented element power generator modules of 254 thermoelectric elements. The element is 1 mm × 1 mm in area, which consists of 300 μm thickness Bi2Te3 and 50 μm thickness ErAs:(InGaAs)1-x(InAlAs)x, so that each segment can work at different temperature ranges. Erbium arsenide metallic nanoparticles are incorporated to create scattering centers for middle and long wavelength phonons, provide charge carriers, and form local Schottky barriers for electron filtering. The thermoelectric properties of ErAs:InGaAlAs were characterized by variable temperature measurements of thermal conductivity, electrical conductivity and Seebeck coefficient from 300 K to 600 K. Generator modules of Bi2Te3 and ErAs:InGaAlAs segmented elements were fabricated and an output power over 5.5 W was measured. The performance of the thermoelectric generator modules can further be improved by improving the thermoelectric properties of the element material, and reducing the electrical and thermal parasitic losses.

UR - http://www.scopus.com/inward/record.url?scp=54749095583&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54749095583&partnerID=8YFLogxK

M3 - Conference article

VL - 1044

SP - 435

EP - 440

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

SN - 0272-9172

ER -