SCANNING TUNNELING MICROSCOPY AND SPECTROSCOPY OF CARBON NANOTUBES COUPLED TO METAL ISLANDS R. Tomita 1,2 , C. Rai 2 , C. Slavonic 2 , K. Kelly 2 1 NanoJapan Program and School of Fundamental Science and Technology, Keio University 2 Department of Electrical and Computer Engineering, Rice University The unique properties of carbon nanotubes (CNTs) such as a 1D structure and dependence of chiral indices make them a promising candidate for molecular electronics. However, the device characteristics of CNT transistors and photodetectors are largely determined by their electronic coupling to the various metal electrodes. Therefore, understanding and designing the electron transport across this interface with such devices is crucial. Scanning tunneling microscopy (STM) is a powerful tool for probing the physics of these types of nanostructures. We disperse CNTs on a substrate of nanometer-sized metal islands, which have been evaporated onto highly ordered pyrolytic graphite. Imaging and spectroscopy of CNTs on the metal islands are obtained using STM and the electronic structure at this junction is explored.
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SCANNING TUNNELING MICROSCOPY AND SPECTROSCOPY OF …nanojapan.rice.edu/Downloads/2011 RQI/2011_Tomita... · Chaitra Rai, and Corey Slavonic. Special thanks also go to Erik H. Haroz
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SCANNING TUNNELING MICROSCOPY AND SPECTROSCOPY OF CARBON NANOTUBES COUPLED TO METAL ISLANDS
R. Tomita1,2, C. Rai2, C. Slavonic2, K. Kelly2
1 NanoJapan Program and School of Fundamental Science and Technology, Keio University
2Department of Electrical and Computer Engineering, Rice University
The unique properties of carbon nanotubes (CNTs) such as a 1D structure and dependence of chiral indices make them a promising candidate for molecular electronics. However, the device characteristics of CNT transistors and photodetectors are largely determined by their electronic coupling to the various metal electrodes. Therefore, understanding and designing the electron transport across this interface with such devices is crucial. Scanning tunneling microscopy (STM) is a powerful tool for probing the physics of these types of nanostructures. We disperse CNTs on a substrate of nanometer-sized metal islands, which have been evaporated onto highly ordered pyrolytic graphite. Imaging and spectroscopy of CNTs on the metal islands are obtained using STM and the electronic structure at this junction is explored.
SCANNING TUNNELING MICROSCOPY AND SPECTROSCOPY OF CARBON NANOTUBES
COUPLED TO METAL ISLANDSR. Tomita1,2, C. Rai2, C. Slavonic2, K. Kelly2
1 NanoJapan Program and School of Fundamental Science and Technology, Keio University2Department of Electrical and Computer Engineering, Rice University