Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Frank Rohmund"'
Autor:
Eleanor E. B. Campbell, Lena K. L. Falk, M. Sveningsson, R. E. Morjan, Oleg Nerushev, Frank Rohmund
Publikováno v:
Applied Physics A. 78:253-261
Carbon nanotubes can be obtained from a multitude of molecular precursors in chemical vapor deposition (CVD) processes. Here we demonstrate that the use of C60 as the carbon feedstock gas in an iron-catalyzed thermal CVD experiment leads to the forma
Autor:
L. Kjeldgaard, Frank Rohmund, Eleanor E. B. Campbell, Lena K. L. Falk, Joseph Nordgren, Paul A. Brühwiler, Joachim Schiessling
Publikováno v:
Journal of Physics: Condensed Matter. 15:6563-6579
We present photoelectron (PE) and x-ray absorption spectra (XAS) of macroscopically aligned multiwalled carbon nanotubes. We identify the peaks in the valence PE spectra with regions of high density of states through comparison to calculations for gr
Publikováno v:
Journal of Applied Physics. 93:4185-4190
The catalytic particle size dependence of chemical vapor deposition growth of multiwall carbon nanotubes was systematically investigated using two different molecules, C2H2 and C60, as carbon feedstock gases. In the particle size range between 25 and
Autor:
Frank Rohmund, Eleanor E. B. Campbell, R. E. Morjan, M. Sveningsson, Oleg Nerushev, Martin Jönsson, Denis Ostrovskii
Publikováno v:
Physica B: Condensed Matter. 323:51-59
The catalytic particle size (Fe) and temperature dependence of multi-walled nanotubes growth from C2H2 and C60 precursor molecules is studied. The structure and density of the carbon nanotubes produced is critically dependent on the particle size, th
Autor:
Wladimir Marine, Alexander V. Bulgakov, O.F. Bobrenok, Eleanor E. B. Campbell, V. I. Kosyakov, Igor Ozerov, M. Hedén, Frank Rohmund
Publikováno v:
Physics of the Solid State. 44:617-622
Experimental results on the gas-phase formation of neutral and cationic phosphorus clusters are presented. The clusters were synthesized by visible (532 nm) or UV (193 nm) laser ablation of crystalline red phosphorus under high vacuum conditions and
Publikováno v:
Journal of Materials Chemistry. 11:1122-1132
Films of carbon nanotubes are interesting for technical applications such as cold cathodes in field emission devices. We discuss experiments in which nanotube films are grown by a simple thermal chemical vapour deposition method from hydrocarbon mole
Publikováno v:
Scopus-Elsevier
Aligned carbon nanotubes are a technologically relevant member of the family of novel carbon materials, which find applications, e.g., as field emitters in flat panel displays. Different strategies of various complexities for their production have be
Autor:
Andreas Lassesson, Paul A. Brühwiler, Eleanor E. B. Campbell, Nils Mårtensson, Frank Rohmund, Joachim Schnadt
Publikováno v:
Physical Review B. 62:4253-4256
$\mathrm{Li}\ensuremath{-}{\mathrm{C}}_{60}$ compounds ${\mathrm{Li}}_{\overline{x}}{\mathrm{C}}_{60}$ were studied for average Li concentration $\overline{x}l~1$ using photoelectron spectroscopy. Strong evidence is found for the formation of ${\math
Autor:
Eleanor E B Campbell, Frank Rohmund
Publikováno v:
Reports on Progress in Physics. 63:1061-1109
Publikováno v:
Scopus-Elsevier
Photoionisation and photofragmentation of endohedral fullerenes are studied by exposure of an effusive molecular beam consisting of Li@C 60 molecules to pulsed 193 nm UV laser light. Under both low and high fluence conditions, Li@C 60 + ions are dete