Daniel Nocera has created the `` artificial leaf '' The low-cost device can turn water and sunlight into stored energy . It has long been dubbed the `` holy grail '' of energy research . '
Daniel Nocera has created the `` artificial leaf '' The low-cost device can turn water and sunlight into stored energy . It has long been dubbed the `` holy grail '' of energy research . Find out why you wo n't be getting your hands on it anytime soon .