Steven Hepplestone's current research areas are the physics and properties of:

Energy storage

• Batteries
• Collosal permittivity materials

Energy conversion

• Thermoelectrics
• Photocatalyst
• Solar power

Physics of Interfaces

• New material design
• Fundamental physics
• Electronic devices

Physics of Nanomaterials

• Nanostructures
• Two-dimensional systems
• Growth and properties of nanostructures
• Fundamentals of transport (heat and electronic) 

Electronics

• Electrical contacts
• Device Development.