Engineering three-dimensional Schottky interfaces towards efficient extraction of plasmonic hot electrons

Scott Criswell; Timothy A. Morgan; Gregory T. Forcherio; Samantha R. Koutsares; Dmitry A. Kozak; Joshua D. Caldwell; Jason G. Valentine

doi:10.1117/12.2594262

5 August 2021 Engineering three-dimensional Schottky interfaces towards efficient extraction of plasmonic hot electrons

Scott Criswell, Timothy A. Morgan, Gregory T. Forcherio, Samantha R. Koutsares, Dmitry A. Kozak, Joshua D. Caldwell, Jason G. Valentine

Author Affiliations +

Proceedings Volume 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII; 1180203 (2021) https://doi.org/10.1117/12.2594262
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Photodetectors harnessing hot carrier generation on surface plasmon resonant nanoantennas are a promising avenue to achieving sub-bandgap imaging at room temperature. However, efficient extraction of plasmonic hot carriers under low-energy infrared (IR) excitation predicates careful design of Schottky interfaces. This work reports on the simulation-guided fabrication of Au (i) planar diodes and (ii) embedded IR nanoantennas interfaced with both n-/p-type Si and GaAs semiconductors in order to elucidate the impact of their electronic properties on photocurrent generation.

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Citation Download Citation

Scott Criswell, Timothy A. Morgan, Gregory T. Forcherio, Samantha R. Koutsares, Dmitry A. Kozak, Joshua D. Caldwell, and Jason G. Valentine "Engineering three-dimensional Schottky interfaces towards efficient extraction of plasmonic hot electrons", Proc. SPIE 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII, 1180203 (5 August 2021); https://doi.org/10.1117/12.2594262

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