Geometry and material optimization of long wave infrared Seebeck nanoantennas

Francisco J. González; Robert E. Peale; Jennyfer Vivas Gomez; Justin Phelps; Reza Abdolvand

doi:10.1117/12.2591299

12 April 2021 Geometry and material optimization of long wave infrared Seebeck nanoantennas

Francisco J. González, Robert E. Peale, Jennyfer Vivas Gomez, Justin Phelps, Reza Abdolvand

Proceedings Volume 11723, Image Sensing Technologies: Materials, Devices, Systems, and Applications VIII; 117230A (2021) https://doi.org/10.1117/12.2591299
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Long wave infrared imaging systems require small, low cost and low power systems operating at room-temperature. Seebeck nanoantennas are room temperature detectors which generate voltage due to incident electromagnetic radiation, they also provide polarization sensitivity, directivity, small footprint, tunability and the possibility of integration into electronic and photonic circuits. In this work different materials and fabrication processes used in Seebeck bowtie nanoantennas are numerically simulated in order to optimize its response in the long wave infrared region of the electromagnetic spectrum (8–14 μm.) Gold bowtie nanoantennas with thermoelectric connections made of Bi₃Te₂ and Sb₃Te₂ showed the highest responsivity values of 9 V/W for gold bowtie nanoantennas on a SiO₂ substrate and 240 V/W for gold bowtie free-standing structures. Computer simulations also showed that the thermoelectric response of these detectors add linearly when connecting them in series.

Conference Presentation

Citation Download Citation

Francisco J. González, Robert E. Peale, Jennyfer Vivas Gomez, Justin Phelps, and Reza Abdolvand "Geometry and material optimization of long wave infrared Seebeck nanoantennas", Proc. SPIE 11723, Image Sensing Technologies: Materials, Devices, Systems, and Applications VIII, 117230A (12 April 2021); https://doi.org/10.1117/12.2591299

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