On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys

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On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys. / Pham Hoang Ngan, [Ukendt]; Ngo Van Nong, [Ukendt]; Le Thanh Hung, [Ukendt]; Balke, Benjamin; Han, Li; Hedegaard, Ellen Marie Jensen; Linderoth, Soren; Pryds, Nini.

I: Journal of Electronic Materials, Bind 45, Nr. 1, 01.2016, s. 594-601.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Pham Hoang Ngan, U, Ngo Van Nong, U, Le Thanh Hung, U, Balke, B, Han, L, Hedegaard, EMJ, Linderoth, S & Pryds, N 2016, 'On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys', Journal of Electronic Materials, bind 45, nr. 1, s. 594-601. https://doi.org/10.1007/s11664-015-4156-z

APA

Pham Hoang Ngan, U., Ngo Van Nong, U., Le Thanh Hung, U., Balke, B., Han, L., Hedegaard, E. M. J., Linderoth, S., & Pryds, N. (2016). On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys. Journal of Electronic Materials, 45(1), 594-601. https://doi.org/10.1007/s11664-015-4156-z

CBE

Pham Hoang Ngan U, Ngo Van Nong U, Le Thanh Hung U, Balke B, Han L, Hedegaard EMJ, Linderoth S, Pryds N. 2016. On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys. Journal of Electronic Materials. 45(1):594-601. https://doi.org/10.1007/s11664-015-4156-z

MLA

Vancouver

Pham Hoang Ngan U, Ngo Van Nong U, Le Thanh Hung U, Balke B, Han L, Hedegaard EMJ o.a. On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys. Journal of Electronic Materials. 2016 jan;45(1):594-601. https://doi.org/10.1007/s11664-015-4156-z

Author

Pham Hoang Ngan, [Ukendt] ; Ngo Van Nong, [Ukendt] ; Le Thanh Hung, [Ukendt] ; Balke, Benjamin ; Han, Li ; Hedegaard, Ellen Marie Jensen ; Linderoth, Soren ; Pryds, Nini. / On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys. I: Journal of Electronic Materials. 2016 ; Bind 45, Nr. 1. s. 594-601.

Bibtex

@article{dec48b7c7481484f9a54f85c8d0ed888,
title = "On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys",
abstract = "A method using fast hot pressing to join half-Heusler (HH) thermoelectric materials directly to an electrical current collector (Ag electrode) without using a third filler material is introduced. The compositions of the HH alloys used are Hf0.5Zr0.5CoSn0.2Sb0.8 and Ti0.6Hf0.4NiSn for p- and n-type, respectively. Using this method, the quality of the HH-electrode contacts is improved due to their low electrical contact resistance and less reaction-diffusion layer. The microstructure and chemical composition of the joints were examined using a scanning electron microscope equipped with energy-dispersive x-ray analysis. The electrical characteristics of the interfaces at the contacts were studied based on electrical contact resistance and Seebeck scanning microprobe measurements. In this paper, we show that joining the HH to a Ag electrode directly using fast hot pressing resulted in lower contact resistance and better performance compared with the method of using active brazing filler alloy.",
keywords = "Thermoelectric, thermoelectric generators, half-Heusler, contact, joining, energy conversion, PHASE-SEPARATION, HIGH-EFFICIENCY, MODULE, COPPER, PERFORMANCE, SYSTEM, FE2VAL, SILVER",
author = "{Pham Hoang Ngan}, [Ukendt] and {Ngo Van Nong}, [Ukendt] and {Le Thanh Hung}, [Ukendt] and Benjamin Balke and Li Han and Hedegaard, {Ellen Marie Jensen} and Soren Linderoth and Nini Pryds",
year = "2016",
month = jan,
doi = "10.1007/s11664-015-4156-z",
language = "English",
volume = "45",
pages = "594--601",
journal = "Journal of Electronic Materials",
issn = "0361-5235",
publisher = "Springer New York LLC",
number = "1",

}

RIS

TY - JOUR

T1 - On the Challenges of Reducing Contact Resistances in Thermoelectric Generators Based on Half-Heusler Alloys

AU - Pham Hoang Ngan, [Ukendt]

AU - Ngo Van Nong, [Ukendt]

AU - Le Thanh Hung, [Ukendt]

AU - Balke, Benjamin

AU - Han, Li

AU - Hedegaard, Ellen Marie Jensen

AU - Linderoth, Soren

AU - Pryds, Nini

PY - 2016/1

Y1 - 2016/1

N2 - A method using fast hot pressing to join half-Heusler (HH) thermoelectric materials directly to an electrical current collector (Ag electrode) without using a third filler material is introduced. The compositions of the HH alloys used are Hf0.5Zr0.5CoSn0.2Sb0.8 and Ti0.6Hf0.4NiSn for p- and n-type, respectively. Using this method, the quality of the HH-electrode contacts is improved due to their low electrical contact resistance and less reaction-diffusion layer. The microstructure and chemical composition of the joints were examined using a scanning electron microscope equipped with energy-dispersive x-ray analysis. The electrical characteristics of the interfaces at the contacts were studied based on electrical contact resistance and Seebeck scanning microprobe measurements. In this paper, we show that joining the HH to a Ag electrode directly using fast hot pressing resulted in lower contact resistance and better performance compared with the method of using active brazing filler alloy.

AB - A method using fast hot pressing to join half-Heusler (HH) thermoelectric materials directly to an electrical current collector (Ag electrode) without using a third filler material is introduced. The compositions of the HH alloys used are Hf0.5Zr0.5CoSn0.2Sb0.8 and Ti0.6Hf0.4NiSn for p- and n-type, respectively. Using this method, the quality of the HH-electrode contacts is improved due to their low electrical contact resistance and less reaction-diffusion layer. The microstructure and chemical composition of the joints were examined using a scanning electron microscope equipped with energy-dispersive x-ray analysis. The electrical characteristics of the interfaces at the contacts were studied based on electrical contact resistance and Seebeck scanning microprobe measurements. In this paper, we show that joining the HH to a Ag electrode directly using fast hot pressing resulted in lower contact resistance and better performance compared with the method of using active brazing filler alloy.

KW - Thermoelectric

KW - thermoelectric generators

KW - half-Heusler

KW - contact

KW - joining

KW - energy conversion

KW - PHASE-SEPARATION

KW - HIGH-EFFICIENCY

KW - MODULE

KW - COPPER

KW - PERFORMANCE

KW - SYSTEM

KW - FE2VAL

KW - SILVER

U2 - 10.1007/s11664-015-4156-z

DO - 10.1007/s11664-015-4156-z

M3 - Journal article

VL - 45

SP - 594

EP - 601

JO - Journal of Electronic Materials

JF - Journal of Electronic Materials

SN - 0361-5235

IS - 1

ER -