Eco-friendly battery and solar cell all-in-one

In solar flow batteries, the proposed charging process links harvesting solar energy and storing it as chemical energy via the electrolyte. Scientists built a solar flow battery that uses an eco-friendly, compatible solvent and needs a lower applied voltage to recharge the battery.

Evaporation-powered motor and light

Scientists designed shape-changing composites that used evaporation to power locomotion and generate electricity.

Match-heads boost photovoltaic efficiency

Crystal growth on a nano/microscale level produces “match-head”-like, three-dimensional structures that enhance light absorption and photovoltaic efficiency. This is the first large structure grown on a nanowire tip and it creates a completely new architecture for harnessing energy.