Benjamin Bruhn et al 2009 Nanotechnology 20 505301 doi:10.1088/0957-4484/20/50/505301
Benjamin Bruhn1, Jan Valenta2 and Jan Linnros1
Show affiliationsElongated silicon quantum dots (also referred to as rods) were fabricated using a lithographic process which reliably yields sufficient numbers of emitters. These quantum rods are perfectly aligned and the vast majority are spatially separated well enough to enable single-dot spectroscopy. Not only do they exhibit extraordinarily high linear polarization with respect to both absorption and emission, but the silicon rods also appear to luminesce much more brightly than their spherical counterparts. Significantly increased quantum efficiency and almost unity degree of linear polarization render these quantum rods perfect candidates for numerous applications.
68.65.Hb Quantum dots (patterned in quantum wells)
Condensed matter: electrical, magnetic and optical
Issue 50 (16 December 2009)
Received 22 September 2009, in final form 27 October 2009
Published 19 November 2009
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