Transverse thermoelectric effect of asymmetrically doped Bi-Sb-Te compounds

Huang, Hsi‐Chien; Lu, Meng-Pei; Liao, Chien-Neng

doi:10.1063/1.4952390

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…Every state-of-the-art TE material thus far has been inorganic semiconductors such as several alloys and intermetallics based on Bi, Te, Ge, and Pb, etc. − with high σ. Extensive research on these materials has been done over the past half-century.…”

Section: Introductionmentioning

confidence: 99%

Flexible Thermoelectric Device Based on Poly(ether-b-amide12) and High-Purity Carbon Nanotubes Mixed Bilayer Heterogeneous Films

Luo

Pan

2018

ACS Appl. Energy Mater.

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Thermoelectric (TE) generators are an appealing, ecofriendly energy harvesting technology capable of converting temperature gradients into electricity. Carbon nanotube (CNT) filled organic composites typically offer the best potential for making cheaper TE materials. In this study, a block copolymer poly(ether-b-amide12) (PEBA) with excellent flexibility and mechanical properties was used to fabricate TE materials via blending CNTs. After doping PEBA with lithium chloride (PEBA-Li+), two types (p-type and n-type) of CNT filled PEBA-Li+ (CNT-PEBA-Li+) TE composites were obtained via a simple one-step casting method. Here, the n-type CNT is prepared by diethylenetriamine doping treatment of the pristine CNT (p-type). The resultant TE materials exhibited a bilayer heterogeneous (BH) structure comprised of a thermally nonconductive layer and a conductive layer. The Seebeck coefficient (S) and electrical conductivity (σ) (under the application of temperature gradient 20 K) for the obtained p-type CNT-PEBA-Li+ bilayer heterogeneous film (BHF) are 36.88 μV/K and 456 S/m and for the n-type CNT-PEBA-Li+ BHF are −33.25 μV/K and 492 S/m, respectively. We constructed this novel TE device by integrating p- and n-type elements. The results showed that generated TE voltages for the module made of three TE couples were able to reach 120 mV for a temperature gradient of 60 K. The TE device construction was more efficient and simpler due to the BH structure, as only two BHF types were needed and no thermal insulating layer was necessary. In addition, our TE device is flexible throughout the entire structure. These novel flexible TE composites may benefit future organic TE materials research and promote the application of flexible and wearable power-conversion devices for next-generation power generators and waste-heat-recovery systems.

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Section: Introductionmentioning

confidence: 99%

Flexible Thermoelectric Device Based on Poly(ether-b-amide12) and High-Purity Carbon Nanotubes Mixed Bilayer Heterogeneous Films

Luo

Pan

2018

ACS Appl. Energy Mater.

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Thermoelectric Devices: A Review of Devices, Architectures, and Contact Optimization

Schierning

Nielsch

2017

Adv Materials Technologies

321

247

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In recent years, the substantially improved performance of thermoelectric (TE) materials has attracted considerable interest in studying the potential applications of the TE technique. Serving as the bridge between TE materials and applicable TE products, TE devices must be properly designed, engineered, and assembled to meet the required performance of TE products for cooling (thermoelectric cooler) and power generation (thermoelectric generator). The principle feasibility of the TE technique has been demonstrated using a variety of different materials and processing technologies, and many different architectures of TE devices have been successfully realized. This review discusses the architectures of TE devices, including bulk and thin‐film TE devices, TE devices with flexible designs, pn‐junction‐based TE devices that provide robust solutions for high operation temperatures, and the meta‐material‐based transverse TE devices. In addition, the assembly of TE devices involves contact layers on which the reliability of TE devices depends. Thus solutions to contact issues, including bonding strength, contact resistance, and thermomechanical stress, are also reviewed.

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Transverse thermoelectric effect of asymmetrically doped Bi-Sb-Te compounds

Cited by 2 publications

References 17 publications

Flexible Thermoelectric Device Based on Poly(ether-b-amide12) and High-Purity Carbon Nanotubes Mixed Bilayer Heterogeneous Films

Flexible Thermoelectric Device Based on Poly(ether-b-amide12) and High-Purity Carbon Nanotubes Mixed Bilayer Heterogeneous Films

Thermoelectric Devices: A Review of Devices, Architectures, and Contact Optimization

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