Simple Multi Spectral Detection Using Infrared Nanocrystal Detector

Avner Neubauer, Shira Yochelis, Yossi Paltiel*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this paper, we present an innovative concept for multi spectral detection based on the different types of PbS nano crystals (NCs) acting as an optical gate on top of a high-mobility shallow two-dimensional electron gas channel. The ability to integrate electronic devices with the unique quantum properties using nanostructures by bottom up approach makes the NCs perfect candidate for the future optoelectronic devices. Using two pairs of side gates, we were able to control the sensitivity of detection, and therefore compare between two separate NCs adsorption areas. This multi side gate concept enables two colors-based detection on the same device using selective adsorption.

Original languageAmerican English
Article number8632957
Pages (from-to)3668-3672
Number of pages5
JournalIEEE Sensors Journal
Issue number10
StatePublished - 15 May 2019

Bibliographical note

Publisher Copyright:
© 2001-2012 IEEE.


  • AC modulation
  • IR detection
  • quantum dots
  • side gate
  • spectral detection
  • tunability


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