P-doped random C20 fullerite - model structure for fullerene-like CPx

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Carbon-based amorphous and fullerene-like (FL) thin films have a great potential due to their mechanical resiliency. TEM investigation and interpretation of results from FL structures embedded in bulk phases is not straightforward. Here, a model is presented for description of the structure of FL-CP0.1 thin films and to describe all the rings in the electron diffraction pattern in a self-consistent way. The model structure consists of random close-packed and P-doped C20 clusters resembling a kind of amorphous fullerite (crystals of fullerene cages). The 10% P doping was implemented by creating C18P2 cages by replacing two C atoms by P in the C20 cage. The simulated electron scattering is in agreement with the experimental electron diffraction pattern and reproduces all the observed diffuse diffraction rings of FL-CP0.1 at ∼1.6, ∼2.6, and ∼5.9Å. Simulation of HRTEM images confirmed the amorphous appearance of this nanostructured material. A cluster of P-doped random close-packed C20 fullerite (right) and its calculated electron diffraction (left) for different average cluster size (expressed in number of atoms).

Original languageEnglish
Pages (from-to)334-337
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume250
Issue number2
DOIs
Publication statusPublished - Feb 2013

Fingerprint

Fullerenes
Model structures
fullerenes
Electron diffraction
electron diffraction
Diffraction patterns
diffraction patterns
Thin films
Atoms
Electron scattering
rings
thin films
Nanostructured materials
atoms
electron scattering
Carbon
Diffraction
Doping (additives)
Transmission electron microscopy
transmission electron microscopy

Keywords

  • Electron diffraction
  • Fullerenes
  • HRTEM
  • Nanostructures

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

P-doped random C20 fullerite - model structure for fullerene-like CPx. / Czigány, Z.

In: Physica Status Solidi (B) Basic Research, Vol. 250, No. 2, 02.2013, p. 334-337.

Research output: Contribution to journalArticle

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