Novel Nano Novel Nano-Engineered Semiconductors for ... - Caltech
Novel Nano Novel Nano-Engineered Semiconductors for ... - Caltech
Novel Nano Novel Nano-Engineered Semiconductors for ... - Caltech
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3.2. Physics of grapheneElectronic bandstructuresbandstructures of graphene:• Tight binding approximation, assuming a perfectly ordered infinitesystem, 3 covalently bonded sp 2 and 1 2p z conduction electrons.• The resulting E 2D (k) band structure isNear the “Diracpoints” K & K'3kakaykax 2 yE 2 D( kx, ky) 3 14cos cos 4cos ( eV)vf k2 2 2Images: Ph.D. thesis of Jinseong Heo, <strong>Caltech</strong> (2008).Image from:http://www.ece.mcgill.ca/~ts7kop/images/graphene_xyz.jpg