- 2D Crystals
|Title||Stochastic nonlinear electrical characteristics of graphene|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Shin, Young Jun, Gopinadhan Kalon, Narayanapillai Kulothungasagaran, Kalitsov Alan, Bhatia Charanjit S., and Yang Hyunsoo|
|Journal||Applied Physics Letters|
A stochastic nonlinear electrical characteristic of graphene is reported. Abrupt current changes are observed from voltage sweeps between the source and drain with an on/off ratio up to 103. It is found that graphene channel experiences the topological change. Active radicals in an uneven graphene channel cause local changes of electrostatic potential. Simulation results based on the self-trapped electron and hole mechanism account well for the experimental data. Our findings illustrate an important issue of reliable electron transports and help for the understanding of transport properties in graphene devices.
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