Colloidal quantum dot photodetectors can now see further than before
(PHYSorg.com Nanotechnology)

Optical sensing in the mid to long infrared (5 microns [um]) is becoming of utmost importance in different fields since it is proving to be an excellent tool for environmental monitoring, gas sensing, thermal imaging as well as food quality control or the applications within the pharmaceutical industry, to name a few. The amount of information hidden within this very rich spectral window opens new possibilities for multi or even hyperspectral imaging. Even though there are technologies that can address these challenges, they are very complex and expensive. Though there is a strong market need in bringing such functionalities to the consumer market, this would require a technology that is low-cost, CMOS compatible and does not impose severe regulatory concerns.