Wearable electronics self-powered by using human body heat: The state of the art and the perspective

Leonov, Vladimir; Vullers, Ruud

doi:10.1063/1.3255465

Cited by 183 publications

(140 citation statements)

References 5 publications

Supporting

Mentioning

136

Contrasting

Unclassified

Order By: Relevance

“…웨어러블 전자소자의 다기능이 구현되기 위 해서는 단일 기능의 전자소자보다 큰 전력소모가 수반되므로, 웨 어러블 기판위에 지속적인 전력공급이 가능한 에너지 소자에 대 한 관심도 더불어 증가하고 있다 [4][5][6]. 전자소자와 연동하여 에 너지를 생산할 수 있는 에너지 소자 중에 열전소자는, 전자소자 에서 발생되는 열을 이용할 수 있어 차세대 웨어러블 전자소자의 다기능 구현을 위한 에너지 소자로 적합하다고 여겨진다.…”

Section: 서 론 최근 다기능 웨어러블 전자소자가 미래 성장산업의 한 분야로unclassified

Effect of Annealing Temperature on Thermoelectric Properties of Ag<sub>2</sub>Se Nanoparticle Thin Films

Yang¹,

Cho²,

Yun³

et al. 2016

The Transactions of The Korean Institute of Electrical Engineer

View full text Add to dashboard Cite

-In this study, we synthesized Ag2Se nanoparticles (NPs) in an aqueous solution and investigated the thermoelectric characteristics of Ag2Se NPs thin films on plastic substrates. Regardless of thermal annealing treatment, all the Ag2Se NPs thin films show the negative Seebeck coefficients, indicating the n-type characteristics. As the annealing temperature increases, the electric conductivity increases while the Seebeck coefficient decreases. The electric conductivity of the thin film annealed at 180°C is larger by 10 6 times, compared with the as-prepared thin film, And the maximum power density for the thin film annealed at 180°C is calculated to be 44 μW/cm 2 .Key Words : Thermoelectric, Silver selenide, Nanoparticles, Seebeck coefficient, Plastic substrate, Annealing

show abstract

Section: 서 론 최근 다기능 웨어러블 전자소자가 미래 성장산업의 한 분야로unclassified

Effect of Annealing Temperature on Thermoelectric Properties of Ag<sub>2</sub>Se Nanoparticle Thin Films

Yang¹,

Cho²,

Yun³

et al. 2016

The Transactions of The Korean Institute of Electrical Engineer

View full text Add to dashboard Cite

show abstract

“…92 Acquiring the capability of stretching TEGs will enable an improved integration with the complex motions of the human body. Smart clothing, fabrics and textiles, which can be flexed and stretched to some extent, might be used for this pur- • C. 93 More recently, Du et al developed a power generating clothing by coating a commercial fabric with a TE polymer, that generated 12.5 nW at a temperature difference of 75…”

Section: -91mentioning

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.

View full text Add to dashboard Cite

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...

show abstract

“…In addition, it provides unlimited service life to wireless sensors with no need for recharging or replacing batteries. Several wearable battery-less wireless devices and those with a rechargeable battery have already been demonstrated [3,4]. These devices are powered thermoelectrically or by using combined photovoltaic and thermoelectric energy scavenging.…”

Section: Introductionmentioning

confidence: 99%

Human Machine and Thermoelectric Energy Scavenging for Wearable Devices

Leonov

2011

ISRN Renewable Energy

Self Cite

View full text Add to dashboard Cite

Thermal properties of humans were studied in the case where a small-size energy scavenger is placed on the body. In such a case, the human being serves as a heat source for the thermopile of the scavenger, but the latter serves as a thermally insulating object. As a result, the body properties, namely, the skin temperature, heat flow, and thermal resistance locally change. This is the result of redirection of heat flow inside the body to colder zones because of thermal insulation provided by the scavenger. Increased thermal resistance of human body, in turn, affects the design of the scavenger. The analysis of such scavenger performed for ambient temperatures of 0• C to 25• C shows that it could reach competitive performance characteristics and replace batteries in low-power wearable electronics. A simulated power of up to 60 μW/cm 2 at 0• C has been validated by using wearable thermoelectric modules.

show abstract

Wearable electronics self-powered by using human body heat: The state of the art and the perspective

Cited by 183 publications

References 5 publications

Effect of Annealing Temperature on Thermoelectric Properties of Ag<sub>2</sub>Se Nanoparticle Thin Films

Effect of Annealing Temperature on Thermoelectric Properties of Ag<sub>2</sub>Se Nanoparticle Thin Films

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

Human Machine and Thermoelectric Energy Scavenging for Wearable Devices

Contact Info

Product

Resources

About