Nanotech Lighting the Way

CNet

Researchers at the University of Toronto have developed particles that potentially will make it easy, and cheap, to see in the dark.

The nanoparticles–developed under a project directed by professor Ted Sargent–can essentially detect infrared light, unseen by humans because of its long wavelengths. And like a solar panel, they can channel the energy to beneficial purposes.

Night vision binoculars and low-light cameras currently can produce images using the infrared spectrum, but the semiconductors inside these devices are complex to manufacture and expensive.

Conceivably, a manufacturer could mix the particles developed by Sargent into coatings, fabrics or plastics, and devise far less-expensive products. A specially treated camera lens could capture images in the dark by fielding infrared signals. Walls treated with infrared-sensitive paint could detect intruders or animals by intercepting their thermal signature, or body heat.