CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12514 > Article
Presentation
15 June 2023 Development of graphene-enhanced HgCdTe photodetectors for uncooled mid-wave infrared detection
Ashok K. Sood, John W. Zeller, Parminder Ghuman, Sachidananda Babu, Nibir K. Dhar, Samiran Ganguly, Latika S. Chaudhary, Harry Efstathiadis
Author Affiliations +
Proceedings Volume 12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X; 1251408 (2023) https://doi.org/10.1117/12.2665080
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States
Abstract
The development of a scalable, low cost, low power, and room temperature operating MWIR detector technology capable of high spatial resolution infrared (IR) imaging is of substantial interest and utility towards the advancement of space and satellite technologies, including remote sensing and earth observation capabilities. However, conventional mid-wave infrared (MWIR) band photodetectors based on HgCdTe material typically require external cooling to achieve sufficient sensing performance, adding significant size, weight, and power restrictions and requirements. By incorporating bilayers of p+-doped graphene to function as a high mobility channel enhancing recombination of photogenerated carriers within HgCdTe absorbing material, a graphene-enhanced HgCdTe photodetector capable of providing uncooled detection over the 2-5 μm MWIR band has been developed. This high performance MWIR band detector technology comprises graphene bilayers initially deposited on Si/SiO2 doped with boron and annealed using a spin-on dopant (SOD) process, that are subsequently transferred onto HgCdTe. Raman spectroscopy, secondary-ion mass spectroscopy (SIMS), and I-V photocurrent testing were used to analyze dopant levels, structural properties of the bilayer graphene prior to and following doping and transfer, and detector IR photoresponse, respectively, of the graphene-enhanced detector devices through various stages of the development process. These room-temperature operating graphene-HgCdTe MWIR detectors have demonstrated enhanced MWIR detection performance to benefit certain NASA Earth Science, defense, and commercial applications.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Ashok K. Sood, John W. Zeller, Parminder Ghuman, Sachidananda Babu, Nibir K. Dhar, Samiran Ganguly, Latika S. Chaudhary, and Harry Efstathiadis "Development of graphene-enhanced HgCdTe photodetectors for uncooled mid-wave infrared detection", Proc. SPIE 12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X, 1251408 (15 June 2023); https://doi.org/10.1117/12.2665080
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Mid-IR
Mercury cadmium telluride
Photodetectors
Graphene
Sensors
Boron
Remote sensing
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top