@inproceedings{9e83a51f2a6b4ed5ab8b98d2b583c43c,
title = "Difference of operation mechanisms in SWNTs network FETs studied via scanning gate microscopy",
abstract = "Field effect transistors (FETs) whose channel is composed of a network of single wall carbon nanotubes (SWNTs) have been studied to investigate the mechanism of the device operation via scanning gate microscopy (SGM) at room temperature. We observed different SGM response in networks of SWNTs either synthesized by CoMoCAT process or semiconducting enriched by density gradient ultracentrifuge process. In the former case, SGM response was observed at specific inter-tube junctions suggesting a Schottky junction formed with semiconducting and metallic SWNTs in the network. In contrast, multiple concentric rings in the SGM response are observed within the tubes in a network of the latter SWNTs suggesting a possibility of quantum mechanical transport at room-temperature. Different type of SGM responses are confirmed in the two kinds of SWNTs networks, nevertheless such active positions would likely have an important role in the FET operation mechanism in each network.",
keywords = "FET, network, SGM, SWNT",
author = "Xiaojun Wei and Masahiro Matsunaga and Tatsurou Yahagi and Kenji Maeda and Bird, \{Jonathan P.\} and Koji Ishibashi and Yuichi Ochiai and Nobuyuki Aoki",
year = "2013",
doi = "10.1063/1.4848317",
language = "English",
isbn = "9780735411944",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "125--126",
booktitle = "Physics of Semiconductors - Proceedings of the 31st International Conference on the Physics of Semiconductors, ICPS 2012",
note = "31st International Conference on the Physics of Semiconductors, ICPS 2012 ; Conference date: 29-07-2012 Through 03-08-2012",
}