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Journal of Electronic Materials

, Volume 41, Issue 10, pp 2725–2729 | Cite as

Colloidal HgTe Material for Low-Cost Detection into the MWIR

  • Emmanuel Lhuillier
  • Sean Keuleyan
  • Heng Liu
  • Philippe Guyot-SionnestEmail author
Article

Abstract

We report on HgTe colloidal-based quantum-dot mid-infrared (IR) photodetectors. We demonstrate tuning the cutoff wavelength of this detector from the near IR up to 7 μm. Responsivity values of films of HgTe nanoparticles a few hundred nanometers thick are in the 100 mA W−1 range even at room temperature. The detectivity of this film is limited by large 1/f noise. Time responses as short as 200 ns are achieved.

Keywords

Colloidal quantum dot HgTe mid-infrared photodetectors 

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Copyright information

© TMS 2012

Authors and Affiliations

  • Emmanuel Lhuillier
    • 1
  • Sean Keuleyan
    • 1
  • Heng Liu
    • 1
  • Philippe Guyot-Sionnest
    • 1
    Email author
  1. 1.James Franck InstituteThe University of ChicagoChicagoUSA

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