Micro thermoelectric modules and their application to wristwatches as an energy source

Kishi, Matsuo; Nemoto, Hiroyuki; Hamao, T.; Yamamoto, M.; Sudou, S.; Mandai, Mrinal Kanti; Yamamoto, Shinji

doi:10.1109/ict.1999.843389

Cited by 145 publications

(104 citation statements)

References 3 publications

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“…Seiko proposed a thermoelectric wristwatch where a voltage of about 300 mV is boosted until 1.5 V, a useful level to power the 1-W quartz circuit [28]. The whole scavenger can provide a total power of 22.5 W.…”

Section: B Thermoelectric Effectmentioning

confidence: 99%

Energy Harvesting and Remote Powering for Implantable Biosensors

2011

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Abstract-This paper reviews some popular techniques to harvest energy for implantable biosensors. For each technique, the advantages and drawbacks are discussed. Emphasis is placed on the inductive links that are able to deliver power wirelessly through the biological tissues and enable bidirectional data communication with the implanted sensors. Finally, high-frequency inductive links are described, focusing also on the power absorbed by the tissues.Index Terms-Energy harvesting, implantable biosensors, inductive powering, remote powering.

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Section: B Thermoelectric Effectmentioning

confidence: 99%

Energy Harvesting and Remote Powering for Implantable Biosensors

2011

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“…1,2 Compared with conventional mechanical devices, thermoelectric devices have the advantage of being maintenance-free and with a better transient response. 3,4 The predominant technology for miniaturizing thermoelectric devices is to apply semiconductor-processing technologies that include thin film fabrication.…”

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confidence: 99%

Formation of Bismuth Nanocrystals in Bi₂O₃Thin Films Grown at 300 K by Pulsed Laser Deposition for Thermoelectric Applications

Eom

Jung

Han

et al. 2014

ECS J. Solid State Sci. Technol.

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Bismuth nanocrystals were embedded in amorphous Bi2O3 thin films grown under a nitrogen atmosphere at room temperature using pulsed laser deposition. As-grown Bi2O3-Bi thin films showed a high electrical conductivity of approximately 769 S/cm at 320 K, and the samples annealed in two steps at 200 and 300°C consisted of amorphous Bi2O3, bismuth nanocrystals in the crystallized β-Bi2O3 phase. The mixture phase of the bismuth nanocrystals and β-Bi2O3 enhanced the thermoelectric properties at room temperature. Samples annealed in two steps at 200 and 300°C showed an electrical conductivity of 833 S/cm, a Seebeck coefficient of –110 μV/K, a power factor of about 1.05 × 10−3 W/K2m. Formation of the bismuth nanocrystals in Bi2O3 thin films at low temperature made thermoelectric applications possible.

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“…For ambient temperatures, with Bi 2 Te 3 used in the case of the human body, the expected overall efficiency falls around 0.91%. Seiko was the first company to release a watch powered by the human body heat [13]. Using this strategy, it is also feasible to power wearable sensor nodes, providing about 100 µW when placed on the wrist [17].…”

Section: Heatmentioning

confidence: 99%

Towards Autonomous Energy-Wise RObjects

Vaussard

Bonani

Rétornaz

et al. 2011

Lecture Notes in Computer Science

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Abstract. In this article, the RObject concept is first introduced. This is followed by a survey of applicable energy scavenging technologies. Energy is a key issue for the large scale deployment of robotics in daily life, as recharging the batteries places a considerable burden on the end-user and is a waste of energy which has an overall negative impact on the limited resources of our planet. We show how the energy obtained from light, water flow, and human work, could be promising sources of energy for powering low-duty devices. To assess the feasibility of powering future RObjects with technologies, tests were conducted on commonly available robotic vacuum cleaners. These tests established an upper-bound on the power requirements for RObjects. Finally, based on these results, the feasibility of powering RObjects using scavenged energy is discussed.

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Micro thermoelectric modules and their application to wristwatches as an energy source

Cited by 145 publications

References 3 publications

Energy Harvesting and Remote Powering for Implantable Biosensors

Energy Harvesting and Remote Powering for Implantable Biosensors

Formation of Bismuth Nanocrystals in Bi₂O₃Thin Films Grown at 300 K by Pulsed Laser Deposition for Thermoelectric Applications

Towards Autonomous Energy-Wise RObjects

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Micro thermoelectric modules and their application to wristwatches as an energy source

Cited by 145 publications

References 3 publications

Energy Harvesting and Remote Powering for Implantable Biosensors

Energy Harvesting and Remote Powering for Implantable Biosensors

Formation of Bismuth Nanocrystals in Bi2O3Thin Films Grown at 300 K by Pulsed Laser Deposition for Thermoelectric Applications

Towards Autonomous Energy-Wise RObjects

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Product

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Formation of Bismuth Nanocrystals in Bi₂O₃Thin Films Grown at 300 K by Pulsed Laser Deposition for Thermoelectric Applications