Synthesis and characterization of carbide nanorods

Dai, Hongjie; Wong, E.W.M.; Lu, Yuan Z.; Fan, Shoushan; Lieber, Charles M.

doi:10.1038/375769a0

Cited by 1,163 publications

(672 citation statements)

References 16 publications

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“…Following their discovery 1 , carbon nanotubes have attracted interest not only for their unusual electrical and mechanical properties, but also because their hollow interior can serve as a nanometre-sized capillary 2,3,4,5,6,7 , mould 8,9,10,11 or template 12,13,14 in material fabrication. The ability to encapsulate a material in a nanotube also offers new possibilities for investigating dimensionally confined phase transitions 15 .…”

Section: Discussionmentioning

confidence: 99%

Formation of ordered ice nanotubes inside carbon nanotubes

Koga

Gao

Tanaka

et al. 2001

Nature

1,062

914

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Section: Discussionmentioning

confidence: 99%

Formation of ordered ice nanotubes inside carbon nanotubes

Koga

Gao

Tanaka

et al. 2001

Nature

1,062

914

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“…[1][2][3] Shape control has successfully been demonstrated for platinum nanoparticles 4 as well as for metallic carbide nanotubes. [5][6][7][8] Furthermore, gold nanorods have recently been prepared by electrodeposition of gold into nanoporous alumina [9][10][11] and by an electrochemical method with the aid of shape-inducing micelles. 12 In addition to the recent interest in the shape control of nanoparticles, the optical properties of noble metal particles with their intense colors have fascinated scientists since the turn of this century.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Optical Absorption Spectra of Gold Nanorods as a Function of Their Aspect Ratio and the Effect of the Medium Dielectric Constant

1999

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Gold nanorods with different aspect ratios are prepared in micelles by the electrochemical method and their absorption spectra are modeled by theory. Experimentally, a linear relationship is found between the absorption maximum of the longitudinal plasmon resonance and the mean aspect ratio as determined from TEM. It is shown here that such a linear dependence is also predicted theoretically. However, calculations also show that the absorption maximum of the longitudinal plasmon resonance depends on the medium dielectric constant in a linear fashion for a fixed aspect ratio. Attempts to fit the calculations to the experimental values indicate that the medium dielectric constant has to vary with the aspect ratio in a nonlinear way. Chemically, this suggests that the structure of the micelle capping the gold nanorods is size dependent. Furthermore, comparison with the results obtained for rods of different aspect ratios made by systematic thermal decomposition of the long rods further suggests that the medium dielectric constant is also temperature dependent. This is attributed to thermal annealing of the structure of the micelles around the nanorods.

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“…The advent of new methods for preparing highly soluble and p rocessable colloidal metallic, semiconductor, and magnetic nanocrystals (15)(16)(17)(18)(19)(20) with very tight control over size and shape creates significant new opportunities in the study of inorganic liquid crystals. In this paper we demonstrate that semiconductor colloidal nanorods spontaneously form liquid crystalline phases in concentrated solution, and we discuss the potential implication of these new phases both for the theory of liquid crystal formation and for the practical application of liquid crystals.…”

mentioning

confidence: 99%