Before revision: Applications of energy materials include , for example, organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics , as well as piezoelectronics.
After revision: Applications of energy materials include photovoltaics , as well as piezoelectronics.