journal article·2018-11-01Open access

Strain-induced photo-thermoelectric terahertz detection

Hasan Ahmad, Daichi Suzuki, Yukio Kawano

AIP Advances· Volume 8· Issue 11

Abstract

We report a design for terahertz (THz) detection by introducing strain to an area of a single-wall carbon nanotube (SWNT) film. The strain is achieved by bending the film around the center, and a large THz response is measured at the two photo-thermoelectric junctions created on the edges of the strained area. We attribute the THz response to an increase in the Seebeck coefficient of the SWNT film with strain, which gives rise to the photo-thermoelectric effect. The enhanced thermal performance is verified on a macroscopic scale using Non-Equilibrium Green’s Function approach for SWNT networks.
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Research context

OpenAlex topics: Thermal Radiation and Cooling Technologies · Advanced Thermoelectric Materials and Devices · Terahertz technology and applications

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Affiliations

Laboratory for Future Interdisciplinary Research of Science and Technology, Department of Electrical and Electronic Engineering, Tokyo Institute of Technology , 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan

Funding

Tokyo Institute of Technology · Japan Society for the Promotion of Science · Japan Science and Technology Agency · Murata Science Foundation

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