Affordable SprayLD Could Lead to Solar Roofs

Dec-08-14 A new method of printing solar cells onto flexible surfaces could eventually lead to solar-harvesting rooftops and cars.

The technique, developed by a team from the University of Toronto, involves mixing tiny, light-sensitive colloidal quantum dots (CQDs) into a solution and then spraying it onto a thin film using a device called sprayLD. The sprayLD applies the liquid onto the film in much the same way as a newspaper is printed, a method that is much easier to incorporate into existing manufacturing processes. The solar panels created using the sprayLD method were shown to have equal efficiency to the more labor-intensive thin film panels currently available.

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