Editor's Choice: Metamaterial Engineering for Superior HgTe cQD Photodetector Performance
Highly responsive, low noise, and inexpensive photodetectors that operate in the mid-infrared (MIR) wavelength regime are in high demand forapplications ranging from fundamental science to large scale industries. In this work, mercury telluride (HgTe) colloidal quantum dot (cQD) based photodetectors are systematically improved by the introduction of new metamaterial designs.
Illustration of a metamaterial enhanced HgTe photodetector with source and drain contacts. The detectors consist of a 100 nm Au backreflector (Mirror), a 17.5 nm alumina spacer layer (Spacer), followed by 60 nm thick Au resonator with 5 nm alumina.
The paper has been published in external pageAdvanced Optical Materials