Structure and optical properties of C60 films on polymer substrates

Biryulin, Yu. F.; Zgonnik, V. N.; Melenevskaya, E. Yu.; Mikov, S. N.; Moliver, S. S.; Орлов, С. Е.; Novoselova, A. V.; Petrikov, V. D.; Розанов, В. В.; Sykmanov, D. A.; Yagovkina, M. A.

doi:10.1134/1.1561531

Cited by 2 publications

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“…Polymer composites and nanocomposites made from organic macromolecules and inorganic fillers comprise a rapidly growing segment in the materials science area, as many recent reviews highlight. − The most common polymer nanocomposites for materials science applications utilize inorganic components such as layered clays, silsesquioxanes, or, in some cases, mesoporous silicates. Alternatively, mechanical property improvements through the use of fullerene C 60 as a structurally uniform nanoscopic filler in polymers are now appearing in the literature. − C 60 –polymer composites have potential energy-transfer advantages for light-harvesting and photovoltaic polymer applications. − Several literature reports have focused on the best methods for homogeneously dispersing C 60 in the polymer matrix, and blend properties that require homogeneous dispersion of C 60 depend critically on the method of preparation. − …”

Section: Introductionmentioning

confidence: 99%

C₆₀–Polymer Nanocomposite Networks Enabled by Guest–Host Properties

et al. 2013

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A modular approach for the synthesis of polymer networks with well-defined node and cross-linking dimensions is described. Each node or tie point in the network is a cyclodextrin molecule, which imparts discrete molecular guest–host capabilities to the network. C60 fullerenes homogeneously intercalate in the network, presumably via van der Waals guest–host interactions with the hydrophobic γ-cyclodextrin cavity, resulting in stable C60-filled polymer networks with improved mechanical properties. Networks prepared with α-cyclodextrin, whose inner cavity is smaller than γ-cyclodextrin, and smaller than the C60 diameter, do not yield materials with stable C60 intercalation. Characterization of the final composites reveals that the cross-linked γ-cyclodextrin-based composites maintain stable C60 concentrations, even after multiple extractions with toluene, which itself is a good solvent for C60. Membranes prepared from the cyclodextrin polymer network, prior to C60 intercalation, should also be useful for C60 extraction from C60–solvent mixtures. The synthetic route we describe here is not limited to C60 and should be generally applicable to a wide variety of guests.

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Section: Introductionmentioning

confidence: 99%

C₆₀–Polymer Nanocomposite Networks Enabled by Guest–Host Properties

et al. 2013

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“…A plenty of reports about electronic and optical properties of C 60 thin films showed that the crystallization of C 60 thin films was face-centred cubic (fcc) structure [5][6][7]10]. The energetically lowest optical transition between the highest occupied electronic level (h u ) and the lowest unoccupied level (t 1u ) was dipole forbidden because the initial and final states have the same parity [8,13].…”

Section: Introductionmentioning

confidence: 99%

Preparation of C<sub>60</sub> Thin Film and Investigation of its Optical Properties

Yang

Deng

et al. 2011

AMR

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C60thin films were deposited on Si substrates at different evaporation temperatures using the thermal evaporation method. In this paper, an extensive study of morphology and crystallinity of the films was presented by atomic force microscopy (AFM), low angle X-ray diffraction (LA-XRD) and UV-vis spectrophotometer. It is found that a good crystalline quality along a (333) preferred orientation was observed at the 450°C evaporation temperature and an ordered sequence of fcc structure was evaluated. The 2.24eV optical energy bandgag of C60thin film corresponding to hu→ t1utransition between the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels was also extracted.

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Structure and optical properties of C60 films on polymer substrates

Cited by 2 publications

References 5 publications

C₆₀–Polymer Nanocomposite Networks Enabled by Guest–Host Properties

C₆₀–Polymer Nanocomposite Networks Enabled by Guest–Host Properties

Preparation of C<sub>60</sub> Thin Film and Investigation of its Optical Properties

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Structure and optical properties of C60 films on polymer substrates

Cited by 2 publications

References 5 publications

C60–Polymer Nanocomposite Networks Enabled by Guest–Host Properties

C60–Polymer Nanocomposite Networks Enabled by Guest–Host Properties

Preparation of C<sub>60</sub> Thin Film and Investigation of its Optical Properties

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C₆₀–Polymer Nanocomposite Networks Enabled by Guest–Host Properties

C₆₀–Polymer Nanocomposite Networks Enabled by Guest–Host Properties