Metamaterial perfect absorber for sustainable thermal gradient in thermoelectric device

Wakana Kubo

doi:10.1117/12.2568214

23 August 2020 Metamaterial perfect absorber for sustainable thermal gradient in thermoelectric device

Wakana Kubo

Proceedings Volume 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII; 114621F (2020) https://doi.org/10.1117/12.2568214
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

Maintaining thermal gradient inside a thermoelectric device is a key for sustainable energy conversion from heat to electricity. Here, we propose a metamaterial perfect absorber which induce a sustainable thermal gradient inside a thermoelectric device by emitting local heat via absorption of thermal radiation released from a heat source. The metamaterial perfect absorber can absorb the thermal radiation emitted from a heat source via a magnetic resonance mode and emit the plasmonic local heat as a consequence of plasmon loss. Metamaterial perfect absorber attached on a top of a thermoelectric device absorbs radiation heat and generate plasmonic local heat, which propagate to the underneath thermoelectric device, leading to a thermal gradient inside the device. Power generation efficiency of the thermoelectric device with metamaterial perfect absorber is estimated by numerical and experimentally.

Conference Presentation

Citation Download Citation

Wakana Kubo "Metamaterial perfect absorber for sustainable thermal gradient in thermoelectric device", Proc. SPIE 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII, 114621F (23 August 2020); https://doi.org/10.1117/12.2568214

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