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Search for "polyynes" in Full Text gives 3 result(s) in Beilstein Journal of Nanotechnology.

Preferential enrichment and extraction of laser-synthesized nanoparticles in organic phases

  • Theo Fromme,
  • Maximilian L. Spiekermann,
  • Florian Lehmann,
  • Stephan Barcikowski,
  • Thomas Seidensticker and
  • Sven Reichenberger

Beilstein J. Nanotechnol. 2025, 16, 254–263, doi:10.3762/bjnano.16.20

Graphical Abstract
  • liquid hydrocarbons such as pyrolysis products [15][16][17][18], polyynes [19][20][21], and dimers [13][22][23]. Furthermore, depending on the solvent and ablated material pairing, carbon may be “harvested” from the solvent forming crystalline carbides [24][25][26][27], amorphous carbon dopant [28][29
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Published 20 Feb 2025

Laser synthesis of nanoparticles in organic solvents – products, reactions, and perspectives

  • Theo Fromme,
  • Sven Reichenberger,
  • Katharine M. Tibbetts and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2024, 15, 638–663, doi:10.3762/bjnano.15.54

Graphical Abstract
  • example, polyynes or alkanes, or permanent gases forming persistent gas microbubbles. There have been various reviews regarding nanoparticle synthesis (mainly addressing findings reported for aqueous media) [7][54][55][56], fundamental physical processes during LSPC [57][58][59], and the potential use of
  • , ethylene [116][117], and polyynes [117][118] were observed from ablation of benzene and toluene. Overall, a large quantity of different products was found for the irradiation of solvents with pulsed lasers. Although the reaction products resulting from the photolysis of solvents have been characterized
  • of sp2- or sp3-hybridized short-chain hydrocarbons observed but also the formation of sp-hybridized polyynes, which are linear hydrocarbons consisting of alternating single and triple bonds. They are often synthesized by laser ablation of carbon-based materials in water [127][128][129][130][131] or
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Published 05 Jun 2024

Raman spectroscopy as a tool to investigate the structure and electronic properties of carbon-atom wires

  • Alberto Milani,
  • Matteo Tommasini,
  • Valeria Russo,
  • Andrea Li Bassi,
  • Andrea Lucotti,
  • Franco Cataldo and
  • Carlo S. Casari

Beilstein J. Nanotechnol. 2015, 6, 480–491, doi:10.3762/bjnano.6.49

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  • single–triple bonds (polyynes), expected to show semiconducting properties. The electronic and optical properties of CAWs can be finely tuned by controlling the wire length (i.e., the number of carbon atoms) and the type of termination (e.g., atom, molecular group or nanostructure). Although linear, sp
  • electronic structure from alternating to equalized bonds. Keywords: carbon nanostructures; cumulenes; polyynes; Raman spectroscopy; sp-hybridized carbon systems; Review Introduction Over the last decades carbon nanostructures have been widely investigated for their unique properties and for their potential
  • semiconducting behavior of polyynes, which corresponds to a lower energy of the ideal sp-carbon chain. Along this metal-to-semiconductor transition the vibrational properties are strongly modified. One of the major effects is the appearance of an optical phonon branch, which is otherwise absent in an equalized
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Published 17 Feb 2015
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