Charge Transfer Induced Polarity Switching in Carbon Nanotube Transistors
- 23 February 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 5 (3), 555-558
- https://doi.org/10.1021/nl048055c
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.Keywords
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This publication has 19 references indexed in Scilit:
- Carbon Nanotube Field-Effect Transistors with Integrated Ohmic Contacts and High-κ Gate DielectricsNano Letters, 2004
- Charge Transfer from Adsorbed ProteinsNano Letters, 2004
- Charge Transfer from Ammonia Physisorbed on NanotubesPhysical Review Letters, 2003
- Interaction of Aromatic Compounds with Carbon Nanotubes: Correlation to the Hammett Parameter of the Substituent and Measured Carbon Nanotube FET ResponseNano Letters, 2003
- Drain voltage scaling in carbon nanotube transistorsApplied Physics Letters, 2003
- Controlling Energy-Level Alignments at Carbon Nanotube/Au ContactsNano Letters, 2003
- Hysteresis Caused by Water Molecules in Carbon Nanotube Field-Effect TransistorsNano Letters, 2003
- Carbon Nanotubes as Schottky Barrier TransistorsPhysical Review Letters, 2002
- Single-walled carbon nanotube electronicsIEEE Transactions on Nanotechnology, 2002
- Reaction of polyaniline with NMP at elevated temperaturesPolymer, 1997