Spray On Solar Cells On Flexible Surfaces

A revolutionary innovation in solar technology was recently announced by researchers at the University of Toronto, that could lead to reducing the manufacturing costs of solar power.

Illan Kramer and a team of researchers at the university are working on portable solar generators that can be transported in a spray can and then sprayed anywhere where power is needed. "My dream is that one day you’ll have two technicians with Ghostbusters backpacks come to your house and spray your roof,” says Kramer. The team has invented a new small light-sensitive material called colloidal quantum dots (CQDs). Until now, CQDs could only be put on surfaces through a chemical coating batch process which is a slow, expensive assembly-line approach. They needed a new delivery system for the CQDs.

See a video demonstration of the SprayLD system below.

Kramer's research has been published across a series of journal articles, initially in Applied Physics Letters, then in Advanced Materials and most recently in ACS Nano.

According to Dr. Kramer, being able to spray on solar cells onto flexible surface means you can put an energy source on just about any object or shape. Imagine what it would be like if you could coat your outdoor furniture, bicycle helmets, your mobile phone or the wing of an airplane with solar cells.