Multiresonant Grating to Replace Transparent Conductive Oxide Electrode for Bias Selected Filtering of Infrared Photoresponse - Archive ouverte HAL Access content directly
Journal Articles Nano Letters Year : 2023

Multiresonant Grating to Replace Transparent Conductive Oxide Electrode for Bias Selected Filtering of Infrared Photoresponse

Tung Huu Dang
Adrien Khalili
Erwan Bossavit
Huichen Zhang
Nicolas Ledos
Yoann Prado
Claire Abadie
Djamal Gacemi
Yanko Todorov
Carlo Sirtori

Abstract

Optoelectronic devices rely on conductive layers as electrodes, but they usually introduce optical losses that are detrimental for the device performances. While the use of transparent conductive oxides is established in the visible, these materials show high losses at longer wavelengths. Here, we demonstrate a photodiode based on metallic grating acting as an electrode. The grating generates a multi-resonant photonic structure over the diode stack and allows strong broadband absorption. The obtained device achieves the highest performances reported so far for a mid-wave infrared nanocrystal-based detector, with external quantum efficiency above 90 %, detectivity of 7x10 11 jones at 80 K at 5 µm, and sub 100 ns time response. Furthermore, we demonstrate that combining different gratings with a single diode stack can generate bias reconfigurable response and develop new functionalities such as band rejection.
Embargoed file
Embargoed file
0 0 19
Year Month Jours
Avant la publication
Friday, March 15, 2024
Embargoed file
Friday, March 15, 2024
Please log in to request access to the document

Dates and versions

hal-04208735 , version 1 (15-09-2023)

Identifiers

Cite

Tung Huu Dang, Mariarosa Cavallo, Adrien Khalili, Corentin Dabard, Erwan Bossavit, et al.. Multiresonant Grating to Replace Transparent Conductive Oxide Electrode for Bias Selected Filtering of Infrared Photoresponse. Nano Letters, 2023, 23 (18), pp.8385-8826. ⟨10.1021/acs.nanolett.3c02306⟩. ⟨hal-04208735⟩
63 View
1 Download

Altmetric

Share

Gmail Facebook X LinkedIn More