Defect-related dark currents in III-V MWIR nBn detectors

G. R. Savich; D. E. Sidor; X. Du; M. Jain; C. P. Morath; V. M. Cowan; J. K. Kim; J. F. Klem; D. Leonhardt; S. D. Hawkins; T. R. Fortune; A. Tauke-Pedretti; G. W. Wicks

doi:10.1117/12.2050535

24 June 2014 Defect-related dark currents in III-V MWIR nBn detectors

G. R. Savich, D. E. Sidor, X. Du, M. Jain, C. P. Morath, V. M. Cowan, J. K. Kim, J. F. Klem, D. Leonhardt, S. D. Hawkins, T. R. Fortune, A. Tauke-Pedretti, G. W. Wicks

Author Affiliations +

Proceedings Volume 9070, Infrared Technology and Applications XL; 907011 (2014) https://doi.org/10.1117/12.2050535
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

The effect of defects on the dark current characteristics of MWIR, III-V nBn detectors has been studied. Two different types of defects are compared, those produced by lattice mismatch and by proton irradiation. It is shown that the introduction of defects always elevates dark currents; however the effect on dark current is different for nBn detectors and conventional photodiodes. The dark currents of nBn detectors are found to be more tolerant of defects compared to pn-junction based devices. Defects more weakly increase dark currents, and cooling reduces the defect-produced dark currents more rapidly in nBn detectors than in conventional photodiodes.

Citation Download Citation

G. R. Savich, D. E. Sidor, X. Du, M. Jain, C. P. Morath, V. M. Cowan, J. K. Kim, J. F. Klem, D. Leonhardt, S. D. Hawkins, T. R. Fortune, A. Tauke-Pedretti, and G. W. Wicks "Defect-related dark currents in III-V MWIR nBn detectors", Proc. SPIE 9070, Infrared Technology and Applications XL, 907011 (24 June 2014); https://doi.org/10.1117/12.2050535

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