Two infrared photodetectors based on submonolayer quantum dots, having a different InAs coverage of 35% and 50%, were grown, processed and tested. The detector with the larger coverage yielded a specific detectivity of 1.13×10 11 cm Hz 1/2 W -1 at 12K, which is among the highest values reported in the literature for that kind of device.
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Alzeidan, Ahmad; De Cantalice, Tiago F.; Vallejo, Kevin D.; Simmonds, Paul J.; and Quivy, Alain A.. (2021). "Influence of the InAs Coverage on the Performance of Submonolayer-Quantum-Dot Infrared Photodetectors Grown with a (2×4) Surface Reconstruction". 2021 35th Symposium on Microelectronics Technology and Devices (SBMicro), . https://doi.org/10.1109/SBMicro50945.2021.9585765