科研成果 by Year: 2008

2008
Zhu YZ, Wang S, Wei XL, Ding L, Zhang ZY, Liang XL, Chen Q, Peng LM. Frequency Response of SWCNT Field-Effect Transistors with MWCNT Interconnects. Acta Physico-Chimica Sinica [Internet]. 2008;24:2122-2127. 访问链接Abstract
Single-walled carbon nanotube field-effect transistors (SWCNT FETs) with multi-walled carbon nanotubes (MWCNTs) as interconnects were fabricated, and their field effect properties were measured and compared with those of the case with metal leads as interconnects. Both cases showed almost the same direct current (DC) response, while the MWCNTs interconnected case showed a little better alternating current (AC) properties. AC measurement showed that the MWCNTs interconnected SWCNT FETs worked well at frequency up to 20 MHz.
Wei XL, Liu Y, Chen Q, Wang MS, Peng LM. The very-low shear modulus of multi-walled carbon nanotubes determined simultaneously with the axial Young's modulus via in situ experiments (vol 18, pg 1555, 2008). Advanced Functional Materials [Internet]. 2008;18:1721-1721. 访问链接
Wei X, Liu Y, Chen Q, Peng LM. Controlling electron-beam-induced carbon deposition on carbon nanotubes by Joule heating. Nanotechnology. 2008;19. SCI被引用次数:27.
Wei X-L, Liu Y, Chen Q, Wang M-S, Peng L-M. The very low shear modulus of multi-walled carbon nanotubes determined simultaneously with the axial Young's modulus via in situ experiments. Advanced Functional Materials. 2008;18:1555-1562.
Wang MS, Kaplan-Ashiri I, Wei XL, Rosentsveig R, Wagner HD, Tenne R, Peng LM. In Situ TEM Measurements of the Mechanical Properties and Behavior of WS(2) Nanotubes. Nano Research [Internet]. 2008;1:22-31. 访问链接Abstract SCI被引用次数:33.
The mechanical properties of individual WS(2) nanotubes were investigated and directly related to their atomic structure details by in situ transmission electron microscope measurements. A brittle mode deformation was observed in bending tests of short (ca. 1 mu m in length) multilayer nanotubes. This mode can be related to the atomic structure of their shells. In addition, longer nanotubes (6-7 mu m in length) were deformed in situ scanning electron microscope, but no plastic deformation was detected. A "sword-in-sheath" fracture mechanism was revealed in tensile loading of a nanotube, and the sliding of inner shells inside the outermost shell was imaged "on-line". Furthermore, bending modulus of 217 GPa was obtained from measurements of the electric-field-induced resonance of these nanotubes.
Jiang AN, Gao S, Wei XL, Liang XL, Chen Q. Amplitude response of multiwalled carbon nanotube probe with controlled length during tapping mode atomic force microscopy. Journal of Physical Chemistry C. 2008;112:15631-15636. SCI被引用次数:9.