Figure 1.

Schematic image of a nanocone and a calculated band gap structure of Si. A schematic image of a nanocone with a gradually increasing band gap from a substrate up to the tip of cones (a) and a calculated band gap structure of Si as function of the nanowire’s diameter (b).

Medvid et al. Nanoscale Research Letters 2013 8:264   doi:10.1186/1556-276X-8-264
Download authors' original image