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Heat source free water floating carbon nanotube thermoelectric generators.

ABSTRACT: Thermoelectric generators (TEGs) produce electric power from environmental heat energy and are expected to play a key role in powering the Internet of things. However, they require a heat source to create a stable and irreversible temperature gradient. Overcoming these restrictions will allow the use of TEGs to proliferate. Therefore, we propose heat source-free water-floating carbon nanotube (CNT) TEGs. Output voltage and power are generated by the temperature gradient in the CNT films in which water pumping via capillary action leads to evaporation-induced cooling in selected areas. Furthermore, the output voltage and power increase when the films are exposed to sunlight and wind flow. These water-floating CNT TEGs demonstrate a pathway for developing wireless monitoring systems for water environments.

SUBMITTER: Chiba T

PROVIDER: S-EPMC8289987 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Heat source free water floating carbon nanotube thermoelectric generators.

Chiba Tomoyuki T Amma Yuki Y Takashiri Masayuki M

Scientific reports 20210719 1

Thermoelectric generators (TEGs) produce electric power from environmental heat energy and are expected to play a key role in powering the Internet of things. However, they require a heat source to create a stable and irreversible temperature gradient. Overcoming these restrictions will allow the use of TEGs to proliferate. Therefore, we propose heat source-free water-floating carbon nanotube (CNT) TEGs. Output voltage and power are generated by the temperature gradient in the CNT films in which ...[more]

PMID: 34282253

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