6 Watt Segmented Power Generator Modules using Bi2Te3 and (InGaAs)1-x(InAlAs)x Elements Embedded with ErAs Nanoparticles

AbstractWe report the fabrication and characterization of segmented element power generator modules of 16 x 16 thermoelectric elements consisting of 0.8 mm thick Bi2Te3 and 50 μm thick ErAs:(InGaAs)1-x(InAlAs)x with 0.6% ErAs by volume. Erbium Arsenide metallic nanoparticles are incorporated to create scattering centers for middle and long wavelength phonons, and to form local potential barriers for electron filtering. The thermoelectric properties of ErAs:(InGaAs)1-x(InAlAs)x were characterized in terms of electrical conductivity and Seebeck coefficient from 300 K up to 830 K. Generator modules of Bi2Te3 and ErAs:(InGaAs)1-x(InAlAs)x segmented elements were fabricated and an output power of 6.3 W was measured. 3D finite modeling shows that the performance of thermoelectric generator modules can further be enhanced by the improvement of the thermoelectric properties of the element materials, and reducing the electrical and thermal parasitic losses.

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Segmented Power Generator Modules of Bi2Te3 and ErAs:InGaAlAs Embedded with ErAs Nanoparticles

MRS Proceedings ◽

10.1557/proc-1044-u10-06 ◽

2007 ◽

Vol 1044 ◽

Author(s):

Gehong Zeng ◽

Je-Hyeong Bahk ◽

John E. Bowers ◽

Hong Lu ◽

Joshua M. O. Zide ◽

...

Keyword(s):

Thermoelectric Properties ◽

Metallic Nanoparticles ◽

Variable Temperature ◽

Charge Carriers ◽

Power Generator ◽

Erbium Arsenide ◽

Long Wavelength ◽

Scattering Centers ◽

Temperature Ranges

AbstractWe 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.

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Modeling, Simulation, Fabrication, and Characterization of a 10- $\mu$ W/cm2 Class Si-Nanowire Thermoelectric Generator for IoT Applications

IEEE Transactions on Electron Devices ◽

10.1109/ted.2018.2867845 ◽

2018 ◽

Vol 65 (11) ◽

pp. 5180-5188 ◽

Cited By ~ 18

Author(s):

Motohiro Tomita ◽

Shunsuke Oba ◽

Yuya Himeda ◽

Ryo Yamato ◽

Keisuke Shima ◽

...

Keyword(s):

Thermoelectric Generator ◽

Si Nanowire ◽

Iot Applications ◽

Modeling Simulation ◽

Fabrication And Characterization

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Fabrication and characterization of InAs/GaSb type-II superlattice long-wavelength infrared detectors aiming high temperature sensitivity

Journal of Lightwave Technology ◽

10.1109/jlt.2020.3005974 ◽

2020 ◽

pp. 1-1

Author(s):

Liang Wang ◽

Zhicheng Xu ◽

Jiajia Xu ◽

feng dong ◽

Fangfang Wang ◽

...

Keyword(s):

High Temperature ◽

Temperature Sensitivity ◽

Infrared Detectors ◽

Type Ii ◽

Long Wavelength ◽

Type Ii Superlattice ◽

Fabrication And Characterization ◽

Long Wavelength Infrared ◽

High Temperature Sensitivity

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Transient Thermal Characterization of ErAs/In0.53Ga0.47As Thermoelectric Module

ASME 2007 InterPACK Conference, Volume 2 ◽

10.1115/ipack2007-33880 ◽

2007 ◽

Author(s):

Y. Ezzahri ◽

R. Singh ◽

K. Fukutani ◽

Z. Bian ◽

A. Shakouri ◽

...

Keyword(s):

Metallic Nanoparticles ◽

Thermoelectric Module ◽

Thermal Characterization ◽

Hot Electrons ◽

Thermoelectric Power Factor ◽

Scattering Centers ◽

Network Identification ◽

Transient Thermal

Embedded metallic nanoparticles in semiconductors have recently been proven to be of great interest for thermoelectric applications. These metallic nanoparticles play the role of scattering centers for phonons and a source of doping for electrons; they reduce simultaneously the thermal conductivity and increase the thermoelectric power factor of the semiconductor. It has also shown that metal/semiconductor heterostructures can be used to break the crystal momentum symmetry for hot electrons in thermionic devices, then increasing the number of electrons participating in transport. A thermoelectric module of 200 N-P pairs of InGaAlAs with embedded ErAs metallic nanoparticles has been fabricated. Network Identification by Deconvolution (NID) technique is then applied for transient thermal characterization of this thermoelectric module. The combination of this new representation of the dynamic behavior of the packaged device with high resolution thin film temperature measurement allows us to obtain information about heat transfer within the thermoelectric module. This is used to extract the thermal resistances and heat capacitances of the module.

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Synthesis and Characterization of P3HT/Metal Nanoparticles

Iraqi Journal of Physics (IJP) ◽

10.30723/ijp.v17i43.490 ◽

2019 ◽

Vol 17 (43) ◽

pp. 122-127

Author(s):

Mustafa A. Mustafa

Keyword(s):

Metallic Nanoparticles ◽

Chemical Interaction ◽

Pulsed Laser ◽

Sem Analysis ◽

Electron Microscopic ◽

X Ray ◽

Spherical Structure ◽

Scanning Electron Microscopic ◽

Fabrication And Characterization

In this work the fabrication and characterization of poly(3-hexylthiophene) P3HT-metallic nanoparticles (Ag, Al). Pulsed Laser Ablation (PLA) technique was used to synthesis the nanoparticles in liquid. The Fourier Transformer Infrared (FTIR) for all samples indicate the chemical interaction between the polymer and the nanoparticles. Scanning Electron Microscopic (SEM) analysis showed the particle size for P3HT-AgNps samples between 44.50 nanometers as well the spherical structure. While for P3HT-AlNps samples was flakes shape. Energy Dispersive X-ray (EDX) spectra show the existing of amount of metallic nanoparticles.

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