Issue 47, 2020

Broadband Tamm plasmon-enhanced planar hot-electron photodetector

Abstract

Here, we propose a planar hot-electron photodetector based on broadband Tamm plasmon resonance using a TiN layer, n-type doped Si layer, and seven pairs of DBRs. Simulation results show high absorption (94.2%) with a full width at half maximum of 239.3 nm, which is 2.9 times that of the Au/DBR configuration. We predict that the photoresponsivity can reach 26.1 mA W−1 at 1140 nm. Since the planar nanofilms for TP resonance are facile to fabricate, this work promotes hot-electron applications in broadband photodetection and other broadband light-harvesting applications.

Graphical abstract: Broadband Tamm plasmon-enhanced planar hot-electron photodetector

Supplementary files

Article information

Article type
Communication
Submitted
31 Aug. 2020
Accepted
13 Okt. 2020
First published
14 Okt. 2020

Nanoscale, 2020,12, 23945-23952

Broadband Tamm plasmon-enhanced planar hot-electron photodetector

J. Wang, Y. Zhu, W. Wang, Y. Li, R. Gao, P. Yu, H. Xu and Z. Wang, Nanoscale, 2020, 12, 23945 DOI: 10.1039/D0NR06294D

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