Chemical profiling of single nanotubes: Intramolecular p–n–p junctions and on-tube single-electron transistors

Electrical transport properties of intramolecular p–n–p junctions formed on individual semiconducting carbon nanotubes are reported. Chemical dopant “profiling” along the length of a nanotube divides the nanotube into two p-doped sections and a central n-doped section. The double p–n junctions formed on the nanotube dictate the electrical characteristics of the system. Well-defined and highly reproducible single-electron transistors with much smaller size than the geometrical length of the nanotube are obtained.

[1]  Michel Devoret,et al.  Single Charge Tunneling , 1992 .

[2]  Alan M. Cassell,et al.  Synthesis of individual single-walled carbon nanotubes on patterned silicon wafers , 1998, Nature.

[3]  Michael Tinkham,et al.  Electronic properties of mechanically induced kinks in single-walled carbon nanotubes , 2001 .

[4]  Leonard,et al.  Negative differential resistance in nanotube devices , 2000, Physical review letters.

[5]  Hongjie Dai,et al.  Alkaline metal-doped n-type semiconducting nanotubes as quantum dots , 2000 .

[6]  Jerry Tersoff,et al.  Novel Length Scales in Nanotube Devices , 1999 .

[7]  Zhen Yao,et al.  Carbon nanotube intramolecular junctions , 1999, Nature.

[8]  Yoshiyuki Kawazoe,et al.  Electronic and transport properties of N-P doped nanotubes , 1999 .

[9]  Hongjie Dai,et al.  Electrical measurements of individual semiconducting single-walled carbon nanotubes of various diameters , 2000 .

[10]  Benedict,et al.  Pure carbon nanoscale devices: Nanotube heterojunctions. , 1996, Physical review letters.

[11]  P. L. McEuen,et al.  Electrical transport measurements on single-walled carbon nanotubes , 1999 .

[12]  Hongjie Dai,et al.  Full and Modulated Chemical Gating of Individual Carbon Nanotubes by Organic Amine Compounds , 2001 .

[13]  C. Dekker,et al.  Carbon Nanotube Single-Electron Transistors at Room Temperature , 2001, Science.

[14]  H. Dai,et al.  Modulated chemical doping of individual carbon nanotubes. , 2000, Science.

[15]  P. McEuen,et al.  Formation of a p-type quantum dot at the end of an n-type carbon nanotube , 2001 .

[16]  C. Quate,et al.  Integrated nanotube circuits: Controlled growth and ohmic contacting of single-walled carbon nanotubes , 1999 .