Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Recent trends in 8-14 µm type-II superlattice infrared detectors

Kwan, Dominic, Kesaria, Manoj ORCID:, Anyebe, Ezekiel ORCID: and Huffaker, Diana ORCID: 2021. Recent trends in 8-14 µm type-II superlattice infrared detectors. Infrared Physics and Technology 116 , 103756. 10.1016/j.infrared.2021.103756

[thumbnail of 1-s2.0-S1350449521001286-main.pdf]
PDF - Published Version
Available under License Creative Commons Attribution.

Download (4MB) | Preview


Type-II superlattices (T2SLs) hold enormous potential for next-generation, 8 – 14μm long-wavelength infrared (LWIR) detectors for use at high operating temperature (HOT). The inherit flexibility of the material system has enabled the incorporation of unipolar barriers to eliminate generation-recombination currents and enhance device performance. In addition to suppressed Auger recombination and tunneling currents, this has led to sustained research interest in this material system over the past several decades. For these reasons they are theoretically predicted to outperform the current state-of-the-art Mercury Cadmium Telluride (MCT) detectors. This review provides an overview of LWIR T2SL detectors and highlights some recent developments towards HOT applications. Recent studies on the minority carrier lifetime and diffusion length of T2SLs are examined to appraise the extent to which they limit the performance of HOT LWIR T2SL detectors. Strategies for mitigating these limitations are also explicated.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Seafarers International Research Centre (SIRC)
Publisher: Elsevier
ISSN: 1350-4495
Date of First Compliant Deposit: 26 April 2021
Date of Acceptance: 20 April 2021
Last Modified: 06 Jan 2024 02:20

Citation Data

Cited 12 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics