Results 271 to 280 of about 191,079 (312)
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IEEE Potentials, 2000
Publisher Summary This chapter reviews the preparation and application of carbon nanotubes. Carbon nanotubes have caught the fancy of chemists, physicists, and material scientists. Interest, in this material has overshadowed that of fullerenes in recent years, although nanotubes still are not as readily available as fullerenes.
Deepak Srivastava, Meyya Meyyappan
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Publisher Summary This chapter reviews the preparation and application of carbon nanotubes. Carbon nanotubes have caught the fancy of chemists, physicists, and material scientists. Interest, in this material has overshadowed that of fullerenes in recent years, although nanotubes still are not as readily available as fullerenes.
Deepak Srivastava, Meyya Meyyappan
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Soluble Carbon Nanotubes [PDF]
ChemInform, 2003 AbstractFor Abstract see ChemInform Abstract in Full Text.
D. TASIS +3 more
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Carbon nanotube motors driven by carbon nanotube
The Journal of Chemical Physics, 2008We propose a new type of carbon nanotube (CNT) motor composed of a single-wall CNT (SWCNT) and a double-wall CNT (DWCNT), that are in mechanical contact. The rotational motion of our CNT motor is controllable by the translational motion of the SWCNT along the axis of the DWCNT.
Yoshiteru Takagi +2 more
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2017
Carbon nanotubes (CNTs) are remarkable objects that once looked set to revolutionize the technological landscape in the near future. Since the 1990s and for twenty years thereafter, it was repeatedly claimed that tomorrow’s society would be shaped by nanotube applications, just as silicon-based technologies dominate society today.
Monthioux, Marc +11 more
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Carbon nanotubes (CNTs) are remarkable objects that once looked set to revolutionize the technological landscape in the near future. Since the 1990s and for twenty years thereafter, it was repeatedly claimed that tomorrow’s society would be shaped by nanotube applications, just as silicon-based technologies dominate society today.
Monthioux, Marc +11 more
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Growth of carbon nanotubes and nitrogen-doped carbon nanotubes on “carbon nanotube seeds”
Carbon, 2011Carbon and nitrogen-doped carbon(CNx) nanotubes were synthesized by detonation-assisted chemical vapor deposition with CNTs as seeds and paraffin as the carbon source and melamine as the carbon/nitrogen source.Transmission electron microscopy and electron energy loss spectroscopy were performed to characterize both materials.CNx nanotubes exhibited a ...
Liang Zhan +6 more
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Physics Today, 1994
Carbon is an extraordinary element, considering the diversity of materials it forms. Ranging from sparkling gems to sooty filth, these materials have been studied and used for centuries, and carbon science was long thought to be a mature field. So when a whole new class of carbon materials—the fullerenes, such as C60—appeared in the last decade, many ...
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Carbon is an extraordinary element, considering the diversity of materials it forms. Ranging from sparkling gems to sooty filth, these materials have been studied and used for centuries, and carbon science was long thought to be a mature field. So when a whole new class of carbon materials—the fullerenes, such as C60—appeared in the last decade, many ...
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Introduction to Carbon Nanotubes
2004Carbon nanotubes are remarkable objects that look set to revolutionize the technological landscape in the near future. Tomorrow’s society will be shaped by nanotube applications, just as silicon-based technologies dominate society today. Space elevators tethered by the strongest of cables; hydrogen-powered vehicles; artificial muscles: these are just a
Monthioux, Marc +7 more
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Materials Science and Engineering: A, 1999
Carbon nanotube arrays were prepared by chemical vapor deposition (CVD) of hydrocarbon gas on various substrates. The effect of substrates on the growth, morphology and structure of carbon nanotubes were investigated. Aligned carbon nanotubes with high density and purity were achieved by CVD on bulk silica substrate.
Wei Li +4 more
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Carbon nanotube arrays were prepared by chemical vapor deposition (CVD) of hydrocarbon gas on various substrates. The effect of substrates on the growth, morphology and structure of carbon nanotubes were investigated. Aligned carbon nanotubes with high density and purity were achieved by CVD on bulk silica substrate.
Wei Li +4 more
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Biexcitons in Carbon Nanotubes
Fullerenes, Nanotubes and Carbon Nanostructures, 2005Abstract One‐dimensional confinement in carbon nanotubes leads to pronounced excitonic effects. With recent advances in ultrafast optical spectroscopy on isolated nanotubes, multi‐photon excitations such as biexcitons become accessible. Using an effective‐mass model of such excitations we predict that stable biexcitons will be found in all ...
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physica status solidi (b), 2006
AbstractWe present two‐photon excitation luminescence experiments on carbon nanotubes which show the excitonic origin of the optical excitations. The two‐photon allowed exciton state, which has even parity under rotation about the U‐axis, is roughly 300 meV above the one‐photon active, odd‐parity state.
Maultzsch J +9 more
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AbstractWe present two‐photon excitation luminescence experiments on carbon nanotubes which show the excitonic origin of the optical excitations. The two‐photon allowed exciton state, which has even parity under rotation about the U‐axis, is roughly 300 meV above the one‐photon active, odd‐parity state.
Maultzsch J +9 more
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