Suspended carbon nanotube quantum wires with two gates

被引:70
作者
Cao, H
Wang, Q
Wang, DW
Dai, HJ [1 ]
机构
[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA
[2] Stanford Univ, Adv Mat Lab, Stanford, CA 94305 USA
关键词
carbon nanotubes; chemical vapor deposition; electron transport; quantum dots;
D O I
10.1002/smll.200400015
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Suspended single-walled carbon nanotube devices comprised of high-quality electrical contacts and two electrostatic gates per device have been prepared. Compared to nanotubes pinned on substrates, the suspended devices exhibit little hysteresis related to environmental factors and act as cleaner Tabry-Perot interferometers or single-electron transistors. The high-field saturation currents in the suspended nanotubes related to optical phonon or zone-boundary phonon scattering are significantly lower due to the lack of efficient heat sinking. The multiple-gate design may also facilitate future investigations into the electromechanical properties of nanotube quantum systems.
引用
收藏
页码:138 / 141
页数:4
相关论文
共 19 条
[1]  
[Anonymous], PHYS REV LETT
[2]   Integration of suspended carbon nanotube arrays into electronic devices and electromechanical systems [J].
Franklin, NR ;
Wang, Q ;
Tombler, TW ;
Javey, A ;
Shim, M ;
Dai, HJ .
APPLIED PHYSICS LETTERS, 2002, 81 (05) :913-915
[3]   Carbon nanotubes as Schottky barrier transistors [J].
Heinze, S ;
Tersoff, J ;
Martel, R ;
Derycke, V ;
Appenzeller, J ;
Avouris, P .
PHYSICAL REVIEW LETTERS, 2002, 89 (10)
[4]   Ballistic carbon nanotube field-effect transistors [J].
Javey, A ;
Guo, J ;
Wang, Q ;
Lundstrom, M ;
Dai, HJ .
NATURE, 2003, 424 (6949) :654-657
[5]  
JAVEY A, 2004, PHYS REV LETT, V92, P106
[6]   Hysteresis caused by water molecules in carbon nanotube field-effect transistors [J].
Kim, W ;
Javey, A ;
Vermesh, O ;
Wang, O ;
Li, YM ;
Dai, HJ .
NANO LETTERS, 2003, 3 (02) :193-198
[7]  
Kong J., 2001, PHYS REV LETT, V87, P106
[8]   Fabry-Perot interference in a nanotube electron waveguide [J].
Liang, WJ ;
Bockrath, M ;
Bozovic, D ;
Hafner, JH ;
Tinkham, M ;
Park, H .
NATURE, 2001, 411 (6838) :665-669
[9]   Ballistic transport in metallic nanotubes with reliable Pd ohmic contacts [J].
Mann, D ;
Javey, A ;
Kong, J ;
Wang, Q ;
Dai, HJ .
NANO LETTERS, 2003, 3 (11) :1541-1544
[10]  
MINOT ED, 2003, PHYS REV LETT, V90, P156