Precisely Controlled Ultrastrong Photoinduced Doping at Graphene–Heterostructures Assisted by Trap‐State‐Mediated Charge Transfer
2015
Ultrastrong and precisely controllable n-type photoinduced doping at a graphene/TiOx heterostructure as a result of trap-state-mediated charge transfer is demonstrated, which is much higher than any other reported photodoping techniques. Based on the strong light-matter interactions at the graphene/TiOx heterostructure, precisely controlled photoinduced bandgap opening of a bilayer graphene device is demonstrated.
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