Can nano-pyramids help us in future energy savings?

P-O Holtz, IFM 

Energy savings on illumination reaching almost 90 % are predicted if conventional light bulbs are replaced by efficient light emitting diodes. However, the diodes used today have still a too low efficiency due to the fact that the semiconductor material generally used for this purpose, gallium nitride, has a too high defect level, which limits the radiative emission efficiency. In order to circumvent this problem, researchers at IFM have introduced gallium nitride based micro-pyramids.


Nanoparticles for biomedical imaging

L. Selegård, K. Uvdal, IFM

Nano Science and nanotechnology enable design of material and structures with unique material properties. Nanomaterial with such unique properties, in combination with biomolecular self-assembly opens up for new applications, powerful within medicine. We are now developing magnetically and optically active nanoprobes for biomedical imaging. Detailed information of properties of the core, as chemical composition, surface states and defects, magnetic response, optical activity are investigated.

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