Research - Nanoenergy subareas

The need for more efficient and sustainable methods for energy harvesting and conversion is one of Humanity’s greatest challenges. We aim to harness the unique electronic, photonic and structural properties of highly controlled nanomaterials to achieve high energy collection and -conversion efficiency with less material use.

Nanowire photovoltaics

Solar energy ~10 000 times today’s total global energy consumption impignes on Earth. Could we only convert a small fraction of all this energy to useful energy forms, our future energy supply is secured. Photovoltaics converts light to electricity and NW technologies have the potential to provide multi-bandgap materials otherwise not feasible and low material-consumption devices.

Light-emitting diodes

Lighting accounts for a major part of our energy consumption, but present lamps are too inefficient leading to energy waste. A first political incentive towards developing more efficient devices was taken by abolishing incadescent lamps. However, much more efficient and longer lifetime lighting devices can be constructed with semiconductor based light emitting diodes.By employing NW technology, further improvement in efficiency, material consumption and material tuning can be achieved.

Nanothermodynamics

At the micro- and nanoscales, thermal motion of electrons, atoms and molecules is ubiquitous. Can we use this kinetic energy to do useful work? We explore the fundamentals of thermoelectricity (the generation of electricity from heat gradients) and the use of information to generate work.