Effects of single vacancy defects on 1/f noise in grapbene/b-BN FETs
2018
SP 2 carbon materials, including carbon nanotubes and graphene, have been used extensively for making highly sensitive biochemical field-effect transistor (FET) sensors. Previous studies suggest that structural disorders in these materials enhance the device sensitivity. Despite many studies on device sensitivity in relation to structural defects, only a few studies have examined the effect of defects on low-frequency noise in graphene FETs [1]. However, no study has yet investigated the correlation between the specific type defects, e.g. single vacancy defects, and the low-frequency noise characteristics of graphene transistors. Here, we systematically study the connection between the concentration of single vacancy defects, the low-frequency noise and carrier transport in graphene FETs.
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