Miniature low-power/high-voltage thermoelectric generator

Rowe, Daniel B.; Morgan, D. V.; Kiely, Janice

doi:10.1049/el:19890120

Cited by 44 publications

(24 citation statements)

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“…In the π‐type structure, thicker TE units can effectively maintain the temperature gradient of the FTE devices, and this is difficult when seeking to miniaturize wearable devices. Although a few attempts to design a structure with lateral units have been reported, the energy harvesting of such a structure is in the lateral direction rather than the vertical direction (the vertical direction is the most desired direction in practical applications). To overcome this challenge, a Y‐type structure has been proposed where thermal energy can be vertically harvested with lateral TE legs .…”

Section: Fabrication and Design Of Fte Devicesmentioning

confidence: 99%

Flexible Thermoelectric Materials and Generators: Challenges and Innovations

et al. 2019

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The urgent need for ecofriendly, stable, long‐lifetime power sources is driving the booming market for miniaturized and integrated electronics, including wearable and medical implantable devices. Flexible thermoelectric materials and devices are receiving increasing attention, due to their capability to convert heat into electricity directly by conformably attaching them onto heat sources. Polymer‐based flexible thermoelectric materials are particularly fascinating because of their intrinsic flexibility, affordability, and low toxicity. There are other promising alternatives including inorganic‐based flexible thermoelectrics that have high energy‐conversion efficiency, large power output, and stability at relatively high temperature. Herein, the state‐of‐the‐art in the development of flexible thermoelectric materials and devices is summarized, including exploring the fundamentals behind the performance of flexible thermoelectric materials and devices by relating materials chemistry and physics to properties. By taking insights from carrier and phonon transport, the limitations of high‐performance flexible thermoelectric materials and the underlying mechanisms associated with each optimization strategy are highlighted. Finally, the remaining challenges in flexible thermoelectric materials are discussed in conclusion, and suggestions and a framework to guide future development are provided, which may pave the way for a bright future for flexible thermoelectric devices in the energy market.

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Section: Fabrication and Design Of Fte Devicesmentioning

confidence: 99%

Flexible Thermoelectric Materials and Generators: Challenges and Innovations

et al. 2019

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“…Thermoelectric generators manufactured commercially or reported through publications belong to one of these two categories. TEGs reported by Glosch et al (1999) and Rowe et al (1989) have their TE legs laid laterally on their respective substrates, whereas those demonstrated by Snyder for JPL (Snyder et al 2003), Bottner for Micropelt (Bottner et al 2004), Kishi for Seiko (Kishi et al 1999) and many others have a vertical layout. In both cases the two temperatures are on the same side of the substrate (Fig.…”

Section: Concept and Designmentioning

confidence: 93%

Power generation from thermoelectric system-embedded Plexiglas for green building technology

Inayat

Hussain

2012

Appl Nanosci

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CitationInayat SB, Hussain MM (2013) Abstract Thermoelectric materials embedded through or inside exterior glass windows can act as a viable source of supplemental power in geographic locations where hot weather dominates. This thermoelectricity is generated because of the thermal difference between the high temperature outside and the relatively cold temperature inside. Using physical vapor deposition process, we experimentally verify this concept by embedding bismuth telluride and antimony telluride through the 5 mm Plexiglas to demonstrate 10 nW of thermopower generation with a temperature gradient of 21°C. Albeit tiny at this point with non-optimized design and development, this concept can be extended for relatively large-scale power generation as an additional power supply for green building technology.

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“…The major properties of the thermoelectric layer are the Seebeck coefficient and electrical conductivity. The thermoelectric power factor, TPF, can be obtained from the following equation: (1) where and are the Seebeck coefficient and the electrical conductivity, respectively. The TPF mainly affects the thermoelectric material's efficiency.…”

Section: Taguchi Optimizationmentioning

confidence: 99%

“…Fuel cells were once proposed as an alternative portable power source but, in this case, the electrical energy is generated from a chemical reaction, so there are byproducts such as water. Recently, micro TEGs were suggested as a safe and durable energy source [1][2][3][4][5]. Seiko Inc. commercialized wristwatches using a micro TEG.…”

Section: Introductionmentioning

confidence: 99%

Optimization of P-type poly-Si thermoelectric films design

Kim

Lee

2008

J Mech Sci Technol

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In this study, a polycrystalline silicon (poly-Si) film layer for micro thermoelectric generators (TEGs) was optimized by using Taguchi methods. An experimental plan using an orthogonal array L 9 (3 4 ) is described. The fabrication process of the thermoelectric poly-Si films layer is presented in detail. The P-type poly-Si films were fabricated on a tetra ethoxy silane (TEOS) layer with a supporting Si wafer. The thermoelectric properties, Seebeck coefficient and electrical conductivity were measured, including the transport properties such as the hall coefficient, hall mobility and carrier concentration. The design parameters were optimized based on the experimental results. Using the optimum values, a p-type poly-Si films layer was fabricated and its power factor was measured. The measured power factor was 541 μWm -1 K -2 , which was better than the predicted value of 221 μWm -1 K -2 .

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Miniature low-power/high-voltage thermoelectric generator

Cited by 44 publications

References 0 publications

Flexible Thermoelectric Materials and Generators: Challenges and Innovations

Flexible Thermoelectric Materials and Generators: Challenges and Innovations

Power generation from thermoelectric system-embedded Plexiglas for green building technology

Optimization of P-type poly-Si thermoelectric films design

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