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Technology update

Mar 4, 2008

Study probes silicon nanocrystal emission

Ever since porous silicon was found to emit light in 1990, scientists have debated the origins of photoluminescence from silicon nanostructures. Now, Manus Hayne of the University of Lancaster in the UK, along with a number of co-workers from across Europe, have concluded that most of the emitted light originates from defects in the nanocrystals, contradicting earlier studies that attributed light emission to quantum confinement effects (Nature Nanotechnology doi:10.1038/nnano.2008.7).

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