Comparison of performance limits of HOT HgCdTe photodiodes and colloidal quantum dot infrared detectors

A. Rogalski; M. Kopytko; P. Martyniuk

doi:10.1117/12.2563960

23 April 2020 Comparison of performance limits of HOT HgCdTe photodiodes and colloidal quantum dot infrared detectors

A. Rogalski, M. Kopytko, P. Martyniuk

Proceedings Volume 11407, Infrared Technology and Applications XLVI; 114070V (2020) https://doi.org/10.1117/12.2563960
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

In the past decade, there has been significant progress in development of the colloidal quantum dot (CQD) photodetectors. The QCD’s potential advantages include: cheap and easy fabrications, size-tunable across wide infrared spectral region, and direct coating on silicon electronics for imaging, what potentially reduces array cost and offers new modifications like flexible infrared detectors. The performance of CQD high operating temperature (HOT) photodetectors is lower in comparison with traditionally detectors existing on the global market (InGaAs, HgCdTe and type-II superlattices). In several papers their performance is compared with the semiempirical rule, “Rule 07” (specified in 2007) for P-on-n HgCdTe photodiodes. However, at present stage of technology, the fully-depleted background limited HgCdTe photodiodes can achieve the level of roomtemperature dark current considerably lower than predicted by Rule 07. In this paper, the performance of HOT CQD photodetectors is compared with that predicted for depleted P-i-N HgCdTe photodiodes. Theoretical estimations are collated with experimental data for both HgCdTe photodiodes and CQD detectors. The presented estimates provide further encouragement for achieving low-cost and high performance MWIR and LWIR HgCdTe focal plane arrays operating in HOT conditions.

Citation Download Citation

A. Rogalski, M. Kopytko, and P. Martyniuk "Comparison of performance limits of HOT HgCdTe photodiodes and colloidal quantum dot infrared detectors", Proc. SPIE 11407, Infrared Technology and Applications XLVI, 114070V (23 April 2020); https://doi.org/10.1117/12.2563960

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