Novel electrical switching behaviour and logic in carbon nanotube Y-junctions
Source abstract
Abstract
Carbon-nanotube-based electronics offers significant potential as a nanoscale alternative to silicon-based devices for molecular electronics technologies. Here, we show evidence for a dramatic electrical switching behaviour in a Y-junction carbon-nanotube morphology. We observe an abrupt modulation of the current from an on- to an off-state, presumably mediated by defects and the topology of the junction. The mutual interaction of the electron currents in the three branches of the Y-junction is shown to be the basis for a potentially new logic device. This is the first time that such switching and logic functionalities have been experimentally demonstrated in Y-junction nanotubes without the need for an external gate. A class of nanoelectronic architecture and functionality, which extends well beyond conventional field-effect transistor technologies, is now possible.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Nanopore and Nanochannel Transport Studies · Mechanical and Optical Resonators
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Zhou, D. & Seraphin, S. Complex branching phenomena in the growth of carbon nanotubes. Chem. Phys. Lett. 238, 286–289 (1995).10.1016/0009-2614(95)00406-T ↗
2. Li, W. Z., Wen, J. G. & Ren, Z. F. Straight carbon nanotube Y junctions. Appl. Phys. Lett. 79, 1879–1881 (2001).10.1063/1.1404400 ↗
3. Satishkumar, B. C., Thomas, P. J., Govindaraj, A. & Rao, C. N. R. Y-junction carbon nanotubes. Appl. Phys. Lett. 77, 2530–2532 (2000).10.1063/1.1319185 ↗
4. Xu, H. Q. Electrical properties of three-terminal ballistic junctions. Appl. Phys. Lett. 78, 2064–2066 (2001).10.1063/1.1360229 ↗
5. Xu, H. Q. et al. Novel nanoelectronic triodes and logic devices with TBJs. IEEE Electron Dev. Lett. 25, 164–166 (2004).10.1109/LED.2004.824841 ↗
6. Baughman, R. H., Zakhidov, A. A. & de Heer, W. A. Carbon nanotubes-the route toward applications. Science 297, 787–792 (2002).10.1126/science.1060928 ↗
7. Saito, R., Dresselhaus, G. & Dresselhaus, M. S. Physical Properties of Carbon Nanotubes (Imperial College Press, London, 1998).10.1142/p080 ↗
8. Forro, L. & Schonenberger, C. in Carbon Nanotubes-Topics in Applied Physics (ed. Avouris, P.) (Springer, Heidelberg, 2001).
9. Kim, P., Shi, L., Majumdar, A. & McEuen, P. L. Thermal transport measurements of individual multiwalled nanotubes. Phys. Rev. Lett. 87, 215502 (2001).10.1103/PhysRevLett.87.215502 ↗
10. Collins, P. G., Hersam, M., Arnold, M., Martel, R. & Avouris, P. Current saturation and electrical breakdown in mutiwalled carbon nanotubes. Phys. Rev. Lett. 86, 3128–3131 (2001).10.1103/PhysRevLett.86.3128 ↗
11. Martel, R., Schmidt, T., Shea, H. R., Hertel, T. & Avouris, P. Single- and multi-wall carbon nanotube field-effect transistors. Appl. Phys. Lett. 73, 2447–2449 (1998).10.1063/1.122477 ↗
12. Tans, S. J., Verschueren, A. R. M. & Dekker, C. Room-temperature transistor based on a single carbon nanotube. Nature 393, 49–52 (1998).10.1038/29954 ↗
13. Javey, A., Guo, J., Wang, Q., Lundstrom, M. & Dai, H. Ballistic carbon nanotube field-effect transistors. Nature 424, 654–657 (2003).10.1038/nature01797 ↗
14. Postma, H. W. C., Teepen, T., Yao, Z., Grifoni, M. & Dekker, C. Carbon nanotube single-electron transistors at room temperature. Science 293, 76–79 (2001).10.1126/science.1061797 ↗
15. Gothard, N. et al. Controlled growth of Y-junction nanotubes using Ti-doped vapor catalyst. Nano Lett. 4, 213–217 (2004).10.1021/nl0349294 ↗
16. Shorubalko, I., Xu, H. Q., Omling, P. & Samuelson, L. Tunable nonlinear current-voltage characteristics of three-terminal ballistic nanojunctions. Appl. Phys. Lett. 83, 2369–2371 (2003).10.1063/1.1605822 ↗
17. Shorubalko, I. et al. A novel frequency-multiplication device based on three-terminal ballistic junction. IEEE Electron Dev. Lett. 23, 377–379 (2002).10.1109/LED.2002.1015202 ↗
18. Song, A. M. et al. Nonlinear electron transport in an asymmetric microjunction: A ballistic rectifier. Phys. Rev. Lett. 80, 3831–3834 (1998).10.1103/PhysRevLett.80.3831 ↗
19. Palm, T. & Thylen, L. Designing logic functions using an electron waveguide Y-branch switch. J. Appl. Phys. 79, 8076–8081 (1996).10.1063/1.362362 ↗
20. Andriotis, A. N., Menon, M., Srivastava, D. & Chernozatonski, L. Transport properties of single-wall carbon nanotube Y-junctions. Phys. Rev. B 65, 165416 (2002).10.1103/PhysRevB.65.165416 ↗
21. Csontos, D. & Xu, H. Q. Quantum effects in the transport properties of nanoelectronic three-terminal Y-junction devices. Phys. Rev. B 67, 235322 (2003).10.1103/PhysRevB.67.235322 ↗
22. Andriotis, A. N., Srivastava, D. & Menon, M. Comment on “Intrinsic electron transport properties of carbon nanotube Y-junctions”. Appl. Phys. Lett. 83, 1674–1675 (2003).10.1063/1.1604948 ↗
23. Tian, W. et al. Conductance spectra of molecular wires. J. Chem. Phys. 109, 2874–2882 (1998).10.1063/1.476841 ↗
24. Heinze, S. et al. Carbon nanotubes as Schottky barrier transistors. Phys. Rev. Lett. 89, 106801 (2002).10.1103/PhysRevLett.89.106801 ↗
25. Crespi, V. H., Chopra, N. G., Cohen, M. L., Zettl, A. & Louie, S. G. Anisotropic electron-beam damage and the collapse of carbon nanotubes. Phys. Rev. B 54, 5927–5931 (1996).10.1103/PhysRevB.54.5927 ↗
26. Banhart, F. Irradiation effects in carbon nanostructures. Rep. Prog. Phys. 62, 1181–1221 (1999).10.1088/0034-4885/62/8/201 ↗
27. Gopal, V. et al. Rapid prototyping of site-specific nanocontacts by electron and ion beam assisted direct-write nanolithography. Nano Lett. 4, 2059–2063 (2004).10.1021/nl0492133 ↗
28. Bachtold, A. et al. Contacting carbon nanotubes selectively with low-ohmic contacts for four-probe electric measurements. Appl. Phys. Lett. 73, 274–276 (1998).10.1063/1.121778 ↗
29. Andriotis, A. N., Menon, M., Srivastava, D. & Chernozatonski, L. Rectification properties of carbon nanotube “Y-junctions”. Phys. Rev. Lett. 87, 066802 (2001).10.1103/PhysRevLett.87.066802 ↗
30. Papadapoulos, C., Rakitin, A., Li, J., Vedeneev, A. S. & Xu, J. M. Electronic transport in Y-junction carbon nanotubes. Phys. Rev. Lett. 85, 3476–3479 (2000).10.1103/PhysRevLett.85.3476 ↗