This question is from a First lego league robotic team: These kids are currently researching information for their research project using a nanotechnoogy - theirs is nanocrystals being sprayed onto a hybrid car. The crystals would use the solar power to charge a battery (future technology) When completed, the kids will present this research project to their community, and to a panel of judges at the robotic competition. What knowledge do you have about cadmium selenide nanocrystals being used on a car? Is there information you can share, or give us a contact with this information. In your opinion: is a gasoline fueled engine a necesaary back up for any solar powered car? As the kids get further along, they will ask more questions pertaining to a hybrid car.