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 source create stable irreversible temperature gradient. Overcoming these restrictions will allow use TEGs proliferate. Therefore, we propose source-free water-floating carbon nanotube (CNT) TEGs. Output voltage generated by gradient CNT films which water pumping via capillary action leads evaporation-induced cooling selected areas. Furthermore, output increase when exposed sunlight wind flow. These demonstrate pathway for developing wireless monitoring systems environments.