Controllable p-n Junction Formation in Monolayer Graphene Using Electrostatic Substrate Engineering Chiu, Hsin-Ying ; Perebeinos, Vasili ; Lin, Yu-Ming ; Avouris, Phaedon Abstract Publication: Nano Letters Pub Date: November 2010 DOI: 10.1021/nl102756r Bibcode: 2010NanoL..10.4634C