NPG Asia Materials, in association with Tokyo Institute of Technology

From the following article:
The electronic properties of graphene and carbon nanotubes
NPG Asia Materials , 17–21 (2009) | doi:10.1038/asiamat.2009.1
T. Ando

Published online 21 October 2009

Figure 6.

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Schematic illustration of the enhancement of the effective gap caused by the confinement of conduction electrons and valence holes in a semiconductor quantum well.


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