Researchers at Lund University, Sweden, have grown single continuous GaAs nanowires consisting of segments of pure wurtzite and zincblende phases. Using photoluminescence spectroscopy, they found that ...

In the lab: David Allemeier, PhD student and first author on the paper describing the microcavities, checks a new bottle of NPB, which is used as the hole transport layer in the OLEDs. (Courtesy: ...

The bandgap defines how insulators absorb light and conduct electricity. XUV high-harmonic interferometry now lets ...

The bandgap, i.e. the energy gap between the highest lying valence and the lowest lying conduction band, is a defining ...