High Performance MWIR and LWIR (Hg,Cd)Te Heterostructure Photodiodes

H. R. Vydyanath; P. B. Ward; S. R. Hampton; L. Fishman; J. Slawinski; C. Devaney; J. Ellsworth; T. Krueger

doi:10.1117/12.936520

6 November 1986 High Performance MWIR and LWIR (Hg,Cd)Te Heterostructure Photodiodes

H. R. Vydyanath, P. B. Ward, S. R. Hampton, L. Fishman, J. Slawinski, C. Devaney, J. Ellsworth, T. Krueger

Proceedings Volume 0686, Infrared Detectors, Sensors, and Focal Plane Arrays; (1986) https://doi.org/10.1117/12.936520
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

(Hg,Cd)Te heterostructures have been grown liquid phase epitaxially from tellurium rich solutions on CdTe and (Cd,Zn)Te substrates. Both MWIR detectors sensitive in the 3-5 μm spectral region and LWIR detectors sensitive in the 8-14 µm spectral region have been fabricated in the heterostructures. Detectors with high RoA (low noise) and high quantum efficiency (high signal) have been fabricated. For the MWIR detectors, quantum efficiency in excess of 75 percent and RoA values in excess of 107 ohm cm2 at 80K have been demonstrated for λCo ~ 5.5 µm. For the LWIR detectors RoA values of ~ 106 ohm cm2 have been demonstrated at 40K for λCo ~ 11 μm. A correlation of the trap energies established via carrier lifetime and DLTS measurements with the depletion width - capacitance data indicates the p-n junction to be located at the heterostructure interface.

Citation Download Citation

H. R. Vydyanath, P. B. Ward, S. R. Hampton, L. Fishman, J. Slawinski, C. Devaney, J. Ellsworth, and T. Krueger "High Performance MWIR and LWIR (Hg,Cd)Te Heterostructure Photodiodes", Proc. SPIE 0686, Infrared Detectors, Sensors, and Focal Plane Arrays, (6 November 1986); https://doi.org/10.1117/12.936520

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