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\subsubsection{\texorpdfstring{Type-switchable FETs based on CNTs and nanoparticles}{Typeswitchable FETs based on CNTs and nanoparticles}}
\label{sec:typeswitchable_fets_based_on_cnts_and_nanoparticles}


We have reported the large-scale assembly of type-switchable field
effect transistors (FETs) based on carbon nanotubes (CNTs) and
nanoparticles (NPs). In this device, the charges stored in NPs
adjacent to ambipolar CNT channels were adjusted to control the
carrier type and density in the channels. We demonstrated the
real-time reconfiguration of individual FET types and logic circuit
functionality. Theoretical simulation of a model system was provided
to explain this doping effect. This work takes advantage of the
ambipolar properties of CNTs and opens up the possibility to build new
types of devices with reconfigurable functionalities.

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