Topic
Fullerene
About: Fullerene is a research topic. Over the lifetime, 12723 publications have been published within this topic receiving 359173 citations.
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TL;DR: This Account summarizes the work on the integration of photoactive and/or redox active building blocks, including oligomers, molecules, and particulates, onto graphenoid materials to yield multifunctional electron donor-acceptor conjugates and hybrids and presents examples of proof-of-principle solar energy conversion devices.
Abstract: Many technological applications indispensable in our daily lives rely on carbon. By altering the periodic binding motifs in networks of sp3, sp2, and sp-hybridized carbon atoms, researchers have produced a wide palette of carbon allotropes. Over the past two decades, the physicochemical properties of low-dimensional nanocarbons, including fullerenes (0D), carbon nanotubes (1D), and, most recently, graphene (2D), have been explored systematically.An entire area of research has focused on the chemistry of 1D nanocarbons, particularly single-wall carbon nanotubes. These structures exhibit unique electronic, mechanical, and optical properties. These properties are, however, only discernible for single-wall carbon nanotubes that are debundled, individualized, and stabilized, often in solution. Most prominently, they are small band gap, p-type semiconductors or metals with conductances that reach ballistic dimensions. These structures can have poor solubility in many media, and large bundles can originate from ...
76 citations
TL;DR: In pure carbon materials, such as fullerenes and highly oriented pyrolytic graphite (HOPG), novel magnetic and electrical properties have recently been discovered.
Abstract: In pure carbon materials, such as fullerenes and highly oriented pyrolytic graphite (HOPG), novel magnetic and electrical properties have recently been discovered. In particular, the discovery of weak ferromagnetism in rhombohedral C 6 0 polymers (RhC 6 0 ) has attracted the attention of the scientific community and the press. In this paper, the ferromagnetic correlations found in HOPG and Rh-C 6 0 are commendted upon.
76 citations
TL;DR: In contrast to the assumption that onion-like soot particles could be the carriers of the interstellar ultraviolet (UV) bump, our very small onionlike carbon nanoparticles do not show distinct UV bands due to (π-π*) transitions.
Abstract: Carbon solids are ubiquitous material in interstellar space. However, the formation pathway of carbonaceous matter in astrophysical environments, as well as in terrestrial gas-phase condensation reactions, is not yet understood. Laser ablation of graphite in different quenching gas atmospheres, such as pure He, He/H2, and He/H2O at varying pressures, is used to synthesize very small, fullerene-like carbon nanoparticles. The particles are characterized by very small diameters between 1 and 4 nm and a disturbed onion-like structure. The soot particles extracted from the condensation zone obviously represent a very early stage of particle condensation. The spectral properties have been measured from the far-ultraviolet (FUV; λ = 120 nm) to the mid-infrared (MIR; -->λ = 15 μm). The seedlike soot particles show strong absorption bands in the 3.4 μm range. The profile and the intensity pattern of the 3.4 μm band of the diffuse interstellar medium can be well reproduced by the measured 3.4 μm profile of the condensed particles; however, all the carbon which is left to form solids is needed to fit the intensity of the interstellar bands. In contrast to the assumption that onion-like soot particles could be the carriers of the interstellar ultraviolet (UV) bump, our very small onion-like carbon nanoparticles do not show distinct UV bands due to (π-π*) transitions.
76 citations
TL;DR: In this paper, the authors focus on recent developments in the field, with particular attention to the use of self-assembly principles to impart functionality or to guide the formation of selected structures.
76 citations
Patent•
11 Mar 2003
TL;DR: In this paper, a novel carbon nano-particle and a novel method of preparing the same and a transparent, conductive polymer composite containing the same are presented. But the method is not suitable for the case of carbon nanotubes.
Abstract: The present invention relates to a novel carbon nano-particle and a novel method of preparing the same and a transparent, conductive polymer composite containing the same. The carbon nano-particle has the mean diameter of 1 through 50 nm and the shape of sphere, rod or others, which is a novel material not known in the relevant art. Because of a particle size less than ½ of the shortest wavelength of a visible ray, a transparent resin containing the carbon nano-particle can maintain the transparency. Furthermore, the carbon nano-particle has the excellent electric conductivity and the ferromagnetic property, and can be made by a novel, low cost method entirely different from those of fullerene and carbon nanotube.
76 citations