Nano and energy

One nice aspect about JUAMI has been the opportunity to make connections between different energy technologies and the materials upon which they rely. As an example, a common thread is the crucial role of nanoscale features in top-performing materials for nearly all the different technologies covered at the school.
  • In supercapacitors, nanoscale carbon-based materials improve energy density by increasing the surface area for electrostatic energy storage.
  • In dye-sensitized solar cells, nanoporous TiO2 is crucial to maximize surface area for dye molecules to transfer their photoexcited electrons.
  • For bulk heterojunction organic photovoltaics, the nanoscale phase separation of donor and acceptor components maximizes the interfacial area needed to split photogenerated excitons.
  • Nanoscale morphology can also increase thermoelectric (heat-to-electric) figure-of-merit via reduction of lattice thermal conductivity.
These are just a few examples – the list goes on and on!

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