@ARTICLE{Madejczyk_Paweł_MCT_2023, author={Madejczyk, Paweł and Gawron, Waldemar and Sobieski, Jan and Martyniuk, Piotr and Rutkowski, Jarosław}, volume={31}, number={special issue}, journal={Opto-Electronics Review}, pages={e144551}, howpublished={online}, year={2023}, publisher={Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology}, abstract={This paper presents examples of infrared detectors with mercury cadmium telluride elaborated at the Institute of Applied Physics, Military University of Technology and VIGO Photonics S.A. Fully doped HgCdTe epilayers were grown with the metal organic chemical vapour deposition technique which provides a wide range of material composition covering the entire infrared range from 1.5 µm to 14 µm. Fundamental issues concerning the design of individual areas of the heterostructure including: the absorber, contacts, and transient layers with respect to their thickness, doping and composition were discussed. An example of determining the gain is also given pointing to the potential application of the obtained devices in avalanche photodiode detectors that can amplify weak optical signals. Selected examples of the analysis of current-voltage and spectral characteristics are shown. Multiple detectors based on a connection in series of small individual structures are also presented as a solution to overcome inherent problems of low resistance of LWIR photodiodes. The HgCdTe detectors were compared with detectors from III-V materials. The detectors based on InAs/InAsSb superlattice materials achieve very comparable parameters and, in some respects, they are even superior to those with mercury cadmium telluride.}, type={Article}, title={MCT heterostructures for higher operating temperature infrared detectors designed in Poland}, URL={http://journals.pan.pl/Content/126137/PDF/OPELRE_2023_31_Special_Issue_P_Madejczyk.pdf}, doi={10.24425/opelre.2023.144551}, keywords={MCT, HgCdTe, metal organic chemical vapour deposition, infrared detectors, higher operating temperature}, }