Nanopatterned graphene based long wavelength infrared detectors at room temperature

Tianyi Guo; Alireza Safaei; Sayan Chandra; Debashis Chanda

doi:10.1117/12.2584041

5 March 2021 Nanopatterned graphene based long wavelength infrared detectors at room temperature

Tianyi Guo, Alireza Safaei, Sayan Chandra, Debashis Chanda

Proceedings Volume 11696, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV; 116960F (2021) https://doi.org/10.1117/12.2584041
Event: SPIE OPTO, 2021, Online Only

Abstract

Due to the high cost and requirement for cryogenic cooling of Mercury Cadmium Telluride (MCT) detectors, there is a growing demand for cheap Long Wavelength Infrared (LWIR) detectors at room temperature. Graphene has shown great potential yet suffers from a low absorption (<3%) in the LWIR ranges. In this presentation, we demonstrate the asymmetric plasmon-assisted hot carrier generation and Seebeck photodetection in nano-patterned Graphene with an enhanced absorption (>60%). This novel Graphene photodetector exhibits a remarkable responsivity of 2900 VW-1, detectivity of 1.1 x 109 Jones with a fast response of 100ns in 8-12 μm band at room temperature.

Conference Presentation

Citation Download Citation

Tianyi Guo, Alireza Safaei, Sayan Chandra, and Debashis Chanda "Nanopatterned graphene based long wavelength infrared detectors at room temperature", Proc. SPIE 11696, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV, 116960F (5 March 2021); https://doi.org/10.1117/12.2584041

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available