Perovskite is a new wonder material used to make cheap and efficient solar cells . New , self - cooling solar cells could solve the problem of overheating . ( CNN ) -- Regular windows could produce electricity by using a new , transparent solar cell screen . Old car batteries could be converted into solar cells .
Perovskite is a new wonder material used to make cheap and efficient solar cells . New , self - cooling solar cells could solve the problem of overheating . Regular windows could produce electricity by using a new , transparent solar cell screen . Old car batteries could be converted into solar cells .