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Charge Transfer Induced Polarity Switching in Carbon Nanotube Transistors

Christian Klinke·Jia Chen·Ali Afzali·Phaedon Avouris
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Abstract

We probed the charge transfer interaction between the amine-containing molecules: hydrazine, polyaniline and aminobutyl phosphonic acid, and carbon nanotube field effect transistors (CNTFETs). We successfully converted p-type CNTFETs to n-type and drastically improved the device performance in both the ON- and OFF- transistor states utilizing hydrazine as dopant. We effectively switched the transistor polarity between p- and n- type by accessing different oxidation states of polyaniline. We also demonstrated the flexibility of modulating the threshold voltage (Vth) of a CNTFET by engineering various charge-accepting and -donating groups in the same molecule.

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Christian Klinke, Jia Chen, Ali Afzali, Phaedon Avouris. 2006-03-13. Charge Transfer Induced Polarity Switching in Carbon Nanotube Transistors. https://doi.org/10.1021/nl048055c

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