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Researchers from Singapore design a graphene-based high-efficiency energy harvesting device

Sunday, April 9, 2017 3:45
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Researchers from the Singapore University of Technology and Design (SUTD) have proposed a high-efficiency energy harvesting device based on graphene electrodes and 2D transition metal dichalcogenide materials.

Graphene-TMDs TEC device image

Inspired by the concept of multilayer thermionic devices, the team designed a solid-state thermionic device using van der Waals (vdW) heterostructure sandwiched between two graphene electrodes, to achieve high energy conversion efficiency in the temperature range of 400 to 500 K. The technology enables performance (8% above) of devices comparable to or even better than state-of-art thermoelectric devices around room temperature. This novel design may boost interest in thermionic emission-based energy conversion and pave the way towards another alternative to solutions to low-grade waste heat harvesting.


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