Demonstration of InAsSb/AlInSb double-heterostructure detectors for room temperature operation in the 5- to 8-um wavelength range

Joseph S. Wojkowski; Hooman Mohseni; Jedon D. Kim; Manijeh Razeghi

doi:10.1117/12.344573

7 April 1999 Demonstration of InAsSb/AlInSb double-heterostructure detectors for room temperature operation in the 5- to 8-μm wavelength range

Joseph S. Wojkowski, Hooman Mohseni, Jedon D. Kim, Manijeh Razeghi

Author Affiliations +

Proceedings Volume 3629, Photodetectors: Materials and Devices IV; (1999) https://doi.org/10.1117/12.344573
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

We report the first demonstration of InAsSb/AlInSb double heterostructure detectors for room temperature operation. The structures were grown in a solid source molecular beam epitaxy reactor on semi-insulating GaAs substrate. The material was processed to 400 X 400 micrometer mesas using standard photolithography, etching, and metallization techniques. No optical immersion or surface passivation was used. The photovoltaic detectors showed a cutoff wavelength at 8 micrometer at 300 K. The devices showed a high quantum efficiency of 40% at 7 micrometer at room temperature. A responsivity of 300 mA/W was measured at 7 micrometer under a reverse bias of 0.25 V at 300 K resulting in a Johnson noise limited detectivity of 2 X 10⁸ cmHz^1/2/W.

Citation Download Citation

Joseph S. Wojkowski, Hooman Mohseni, Jedon D. Kim, and Manijeh Razeghi "Demonstration of InAsSb/AlInSb double-heterostructure detectors for room temperature operation in the 5- to 8-μm wavelength range", Proc. SPIE 3629, Photodetectors: Materials and Devices IV, (7 April 1999); https://doi.org/10.1117/12.344573

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