The researchers in the US have created see-through (transparent) solar cells that can be used as windows on cars or buildings, even as they generate electricity. 

Solar cell technology, which earlier used to be really light weight was not efficient enough to covert large amount of Sun’s energy into electricity. 

Nevertheless, a technique was discovered through the study led by scientist John Rogers of the University of Illinois, under which super thin cells were created that, delivered excellent efficiency. 

Under this technique, silicon is sliced very thinly and then it is transferred onto a plastic that results in cells of the one tenth the thickness of existing models. Flexible solar panels can also be created by it. 

According to Prof. Rogers, “You can make (the solar cells) in the form of a grey film that could be added to architectural glass. It opens up spaces on the fronts of buildings as opportunities for solar energy.”