Fabrication of a Flexible Bismuth Telluride Power Generation Module Using Microporous Polyimide Films as Substrates

Kato, Kusuo; Hatasako, Yoshika; Kashiwagi, Makoto; Hagino, Harutoshi; Adachi, Chihaya; Miyazaki, Kôji

doi:10.1007/s11664-013-2852-0

Cited by 29 publications

(23 citation statements)

References 27 publications

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“…Although printing is convenient and fast to create complex patterns, most applications are limited to use temperature gradient in the in-plane direction due to the micrometer thicknesses of the printed films. [102][103][104] Table 2 summarizes the materials and performance of flexible TEGs reported in literature. Molding and lithography provide solutions to this problem.…”

Section: Fabrication and Deposition Methodsmentioning

confidence: 99%

Flexible thermoelectric materials and device optimization for wearable energy harvesting

et al. 2015

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In this paper, we review recent advances in the development of flexible thermoelectric materials and devices for wearable human body-heat energy harvesting applications. We identify various emerging applications such as specialized medical sensors where wearable thermoelectric generators can have advantages over other energy sources. To meet the performance requirements for these applications, we provide detailed design guides regarding the material properties, device dimensions, and gap fillers by performing realistic device simulations with important parasitic losses taken into account. For this, we review recently emerging flexible thermoelectric materials suited for wearable applications, such as polymer-based materials and screen-printed paste-type inorganic materials. A few examples among these materials are selected for thermoelectric device simulations in order to find optimal design parameters for wearable applications. Finally we discuss the feasibility of scalable and cost-effective manufacturing of thermoelectric energy harvesting devices with desired dimensions. 1

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Section: Fabrication and Deposition Methodsmentioning

confidence: 99%

Flexible thermoelectric materials and device optimization for wearable energy harvesting

et al. 2015

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“…However, thin-film thermoelectric generators struggle to generate a temperature difference in the cross-plane direction. Since thin-film thermoelectric generators have relatively long pillar shaped structures, it is possible to generate the temperature difference in the in-plane direction [29][30][31][32][33]. For instance, Jacquot et al [34] invented on-membrane thermoelectric generators and optimized the geometry of generators using model calculations.…”

Section: Introductionmentioning

confidence: 99%

Power Generation in Slope-Type Thin-Film Thermoelectric Generators by the Simple Contact of a Heat Source

Yamamuro

Takashiri

2019

Coatings

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To conveniently generate electric energy for next-generation smart network monitoring systems, we propose the design and fabrication of slope-type thin-film thermoelectric generators by the simple contact of a heat source. N-type Bi2Te3 films and p-type Sb2Te3 films were formed on a stainless-steel substrate employing potentiostatic electrodeposition using a nitric acid-based bath, followed by a transfer process. In order to naturally induce a temperature difference (ΔT) between the ends of the generator, slope blocks made by polydimethylsiloxane (PDMS) were prepared and then inserted between the generators and heat sources. The performance of the generators, the open circuit voltage (Voc), and the maximum output power (Pmax), were measured using PDMS slope angles as the temperature of the heat source was increased. The ΔT of the generators increased as the slope angle was increased. The generator with the highest slope angle (28°) exhibited a Voc of 7.2 mV and Pmax of 18.3 μW at ΔT of 15 K for a heat source temperature of 42 °C. Our results demonstrate the feasibility of slope-type thin-film thermoelectric generators, which can be fabricated with a low manufacturing cost.

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“…71,61,72 ( Figure 2 shows one example) These devices have demonstrated the ability of simple and low-cost fabrication methods to create high-performance flexible TEGs that have advantages such as compact, silent, and high reliability. Also, in terms of power constraints, studies have suggested that a power source in the range of 100 μW cm −2 at 1 V will be ideal for wearable sensor networks.…”

Section: Mechanically Adaptable Thermoelectric Generators and Applicamentioning

confidence: 99%

Review—Micro and Nano-Engineering Enabled New Generation of Thermoelectric Generator Devices and Applications

Rojas

Singh

Inayat³

et al. 2017

ECS J. Solid State Sci. Technol.

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As we are advancing our world to smart living, a critical challenge is increasingly pressing -increased energy demand. While we need mega power supplies for running data centers and other emerging applications, we also need instant small-scale power supply for trillions of electronics that we are using and will use in the age of Internet of Things (IoT) and Internet of Everything (IoE). Such power supplies must meet some parallel demands: sufficient energy supply in reliable, safe and affordable manner. In that regard, thermoelectric generators emerge as important renewable energy source with great potential to take advantage of the widely-abundant and normally-wasted thermal energy. Thanks to the advancements of nano-engineered materials, thermoelectric generators' (TEG) performance and feasibility are gradually improving. However, still innovative engineering solutions are scarce to sufficiently take the TEG performance and functionalities beyond the status-quo. Opportunities exist to integrate them with emerging fields and technologies such as wearable electronics, bio-integrated systems, cybernetics and others. This review will mainly focus on unorthodox but effective engineering solutions to notch up the overall performance of TEGs and broadening their application base. First, nanotechnology's influence in TEGs' development will be introduced, followed by a discussion on how the introduction of mechanically reconfigurable devices can shape up the emerging spectrum of novel TEG technologies. The technology-driven age we are currently in, have brought great advantages to establish a more comfortable and smarter living and it is leading the way for an even faster-growing development in all areas of science and engineering, but at the same time it brings an incredibly fast growing demand for energy. Current and future energy consumption mandate the need for alternative energy sources, with reduced environmental impact. Readily available solar and wind energies have lead the way as alternative energy sources to environmentally challenging fossil fuels.1 Moreover, thanks to more recent developments in thermoelectric (TE) materials and devices, the possibility of making a better use of the widely abundant and normally wasted thermal energy, has becoming a popular and feasible alternative.2 More importantly, thermal waste has become a very important and environmentallyfriendly source of otherwise wasted energy.3,4 There has been already an important set of studies covering the mechanism involved during the conversion from thermal to electric energy. [5][6][7][8] Such studies have been the starting point to develop and optimize novel TE materials with the resourceful aid of uprising nanotechnologies. 9,10 In this review, we will first shortly introduce some important basic concepts and relations about thermoelectrics, as well as some of the current efforts to use nanotechnologies and nano-materials to improve performance and viability. Next, we will focus on identifying innovative devices, novel engineering approach...

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Fabrication of a Flexible Bismuth Telluride Power Generation Module Using Microporous Polyimide Films as Substrates

Cited by 29 publications

References 27 publications

Flexible thermoelectric materials and device optimization for wearable energy harvesting

Flexible thermoelectric materials and device optimization for wearable energy harvesting

Power Generation in Slope-Type Thin-Film Thermoelectric Generators by the Simple Contact of a Heat Source

Review—Micro and Nano-Engineering Enabled New Generation of Thermoelectric Generator Devices and Applications

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