Reversible, Ultrafast Switching of Azo-Benzene-Tethered On Graphene FETs

In this talk, we will demonstrate detection of molecular mechanics on the surface of graphene via measuring the corresponding change in graphene's intrinsic fermionic density. We will present the mechanism of the fermionic-redistribution (density, mobility and energy state) in graphene as tethered Azo-benzene-groups undergo conformational-change. Further, we illustrate the proof-of-concept of a nano-mechanical cargo elevation process by reversibly raising up and lowering down a FITC-tagged DNA molecule appended chemically to the leading terminus of the azo-benzene. This research will enable development of next-generation graphene based systems with applications including FETs, optoelectronic-switches and nano-pistons.