Search results
Search for "fullerene" in Full Text gives 84 result(s) in Beilstein Journal of Nanotechnology.
Neutral and charged boron-doped fullerenes for CO2 adsorption
Beilstein J. Nanotechnol. 2014, 5, 413–418, doi:10.3762/bjnano.5.49
- to reduce the global emissions of greenhouse gases. It is crucial to find suitable materials to achieve an efficient CO2 capture. Here we report our study of CO2 adsorption on boron-doped C60 fullerene in the neutral state and in the 1e−-charged state. We use first principle density functional
- years metal organic frameworks (MOFs) have emerged as solid CO2 adsorbent materials due to their tuneable chemical and physical properties. Particularly, there is growing interest for metal free carbon-based nanomaterials for gas adsorption. Carbon-based nanomaterials such as fullerene, carbon nanotubes
- and graphene offer excellent thermal and chemical stability as CO2 adsorbents [7][8]. Heterofullerenes are fullerene structures in which one or more cage carbon atoms are substituted by heteroatoms [9]. In addition to the properties mentioned above, which are inherent to carbon-based nanomaterials
Fullerenes as adhesive layers for mechanical peeling of metallic, molecular and polymer thin films
Beilstein J. Nanotechnol. 2014, 5, 394–401, doi:10.3762/bjnano.5.46
- facilitates the removal of the gold film from the mica support by peeling and provides a new approach to template stripping which avoids the use of conventional adhesive layers. The fullerene adhesion layers may also be used to remove organic monolayers and thin films as well as two-dimensional polymers which
- are pre-formed on the gold surface and have monolayer thickness. Following the removal from the mica support the monolayers may be isolated and transferred to a dielectric surface by etching of the gold thin film, mechanical transfer and removal of the fullerene layer by annealing/dissolution. The use
- adhesive properties of the fullerene C60, and show that films with a thickness greater than 10 nm can be used for this application. The use of a sublimed C60 adhesion layer also ensures high chemical purity, is compatible with formation under ultra-high vacuum (UHV) conditions and is known, even for
Morphological characterization of fullerene–androsterone conjugates
Beilstein J. Nanotechnol. 2014, 5, 374–379, doi:10.3762/bjnano.5.43
- , University of KwaZulu-Natal, Durban 400l, South Africa 10.3762/bjnano.5.43 Abstract Here we report on the self-organization characteristics in water of two diastereomer pairs of fullerene–androsterone hybrids that have the hydrophobic C60 appendage in the A and D ring of the androsterone moiety
- , respectively. The morphology and particle size in aqueous solution were determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS), with satisfactory agreement between both techniques. In general, these fullerene derivatives are shown to organize into spherical nano-scale
- structures with diameters in the ranges of 10–20 and 30–50 nm, respectively. Keywords: androsterone; dynamic light scattering; fullerene; transmission electron microscopy; Introduction Since the discovery of [60]fullerene [1], the efforts of the scientific community have been focused on the preparation of
Tensile properties of a boron/nitrogen-doped carbon nanotube–graphene hybrid structure
Beilstein J. Nanotechnol. 2014, 5, 329–336, doi:10.3762/bjnano.5.37
- approaches have been developed to tailor the properties of nanomaterials. Doping is one of such schemes and has been extensively used in synthesizing derivatives from carbon-based materials (e.g., fullerene, nanotubes and graphene) [10]. Boron and nitrogen, which have comparable atomic size with carbon atom
Optimization of solution-processed oligothiophene:fullerene based organic solar cells by using solvent additives
Beilstein J. Nanotechnol. 2013, 4, 680–689, doi:10.3762/bjnano.4.77
- to energy levels of three different electron-accepting fullerene derivatives used in the various experiments. Solar cell devices were fabricated by spin-coating the DCV5T-Bu4:PCBM blend from hot solutions at 80 °C on ITO|PEDOT:PSS-coated substrates, which were heated to 90 °C. Subsequently 1 nm LiF
- PC71BM and PC61BM, respectively. This is in agreement with work done by Troshin et al., in which they correlated maximum solubilities of dozens of fullerene derivatives with maximum solar cell performances. In their study they proposed that novel donor polymers should be tested in organic solar cells
- with fullerene derivatives that have a similar solubility in the used solvent [40]. Acceptor-substituted oligothiophene DCV5T-Bu4 possesses the unique characteristic of being processable both in vacuum and from solution, which allows for a rare comparison of the two device types (Table 3). The
Topological edge properties of C60+12n fullerenes
Beilstein J. Nanotechnol. 2013, 4, 400–405, doi:10.3762/bjnano.4.47
- , respectively. The molecular graph M is called a fullerene graph, if M is the molecular graph of a fullerene molecule. It is well-known that such molecules exist for even integers n ≥ 24 or n = 20. The aim of this paper is to investigate the topological properties of a class of fullerene molecules containing 60
- + 12n carbon atoms. Keywords: edge revised Szeged index; edge Szeged index; edge topological property; fullerene; PI index; Introduction Throughout this paper the term "graph" refers to a finite and simple graph. The set of vertices and edges of a graph G are denoted by V(G) and E(G), respectively
- . Molecular graphs are graphs with vertices representing the atoms and edges representing the bonds. A bi-connected graph is a connected graph in which, by removing any vertex, the graph will remain connected. A graph in which all vertices have degree three is called a cubic graph. A fullerene graph is a
Strong spin-filtering and spin-valve effects in a molecular V–C60–V contact
Beilstein J. Nanotechnol. 2012, 3, 589–596, doi:10.3762/bjnano.3.69
- . Keywords: fullerene; molecular spintronics; scanning tunneling microscopy; spin transport; Introduction Organic materials typically offer small spin–orbit and hyperfine interactions, which are prerequisites for spintronic applications, because they allow long spin lifetimes. Thus there is a great interest
Low-temperature synthesis of carbon nanotubes on indium tin oxide electrodes for organic solar cells
Beilstein J. Nanotechnol. 2012, 3, 524–532, doi:10.3762/bjnano.3.60
- research efforts have been recently directed to improve their power-conversion efficiency (PCE), in order to make these cells commercially viable [2]. The most promising active materials for organic cells are semiconducting polymers and fullerene derivatives, whose mixtures result in the formation of an
- the fullerene derivative acts as an electron acceptor [6]. The holes move in the polymeric phase towards the anode, while the electrons hop along the fullerenes and eventually reach the cathode. Since the diffusion length of the exciton in the polymers is very low, recombination is highly probable
- ]. Many approaches have been proposed in order to overcome such fundamental issues and to improve the performances of P3HT:PCBM solar cells. In particular, very promising advances can be gained by increasing the nanoscale ordering of the polymer/fullerene composite. Different means have been proposed
Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications
Beilstein J. Nanotechnol. 2011, 2, 845–861, doi:10.3762/bjnano.2.94
- of a modified C60 [87]. An agreement between the measured photocurrent action spectrum and the absorption spectrum of the modified fullerene served as an indication that the photoactive species was the modified fullerene. A photon-to-current conversion efficiency as high as 15% was measured
Other Beilstein-Institut Open Science Activities
