Zobrazeno 1 - 10
of 595
pro vyhledávání: '"L. Dunsch"'
Publikováno v:
Russian Journal of Electrochemistry. 42:1161-1168
Equilibrium and kinetics are compared for conjugated polymers, supposing the charged states are either polarons (Ps) and bipolarons (BPs) or polarons and polaron pairs (PPs). For low concentrations equilibrium and kinetics are virtually indistinguish
Autor:
Antonio Cravino, Helmut Neugebauer, M. Catellani, L. Dunsch, Silvia Luzzati, Niyazi Serdar Sariciftci, A. Petr
Publikováno v:
Synthetic metals 139 (2003): 747–750. doi:10.1016/S0379-6779(03)00292-3
info:cnr-pdr/source/autori:Neugebauer H.; Cravino A.; LuzzatiS.; Catellani M.; Peter A.; Dunsch L; Sariciftci N. S./titolo:Spectral signature of positive and negative charged states in doped and photoexcited low band-gap polydithienothiophenes/doi:10.1016%2FS0379-6779(03)00292-3/rivista:Synthetic metals/anno:2003/pagina_da:747/pagina_a:750/intervallo_pagine:747–750/volume:139
info:cnr-pdr/source/autori:Neugebauer H.; Cravino A.; LuzzatiS.; Catellani M.; Peter A.; Dunsch L; Sariciftci N. S./titolo:Spectral signature of positive and negative charged states in doped and photoexcited low band-gap polydithienothiophenes/doi:10.1016%2FS0379-6779(03)00292-3/rivista:Synthetic metals/anno:2003/pagina_da:747/pagina_a:750/intervallo_pagine:747–750/volume:139
Spectroelectrochemical studies of polydithienothiophenes (pDTTs), low band-gap conjugated polymers with polythiophene-like chain, using in situ FTIR-ATR and ESR spectroscopy, are shown. Spectral results obtained during p- and n-doping, as well as pho
Publikováno v:
Europhysics Letters (EPL). 60:411-417
Homogeneous C60 layers are prepared by vapor deposition. Electrochemical doping with K+ ions leads to the formation of nanostructures on a 20 nm to 50 nm scale. It is shown by means of Monte Carlo simulations that this process can be understood as a
Autor:
J. Fink, W. Pompe, Xianjie Liu, O. Jost, J. Möller, Andre A. Gorbunov, M.S. Golden, L. Dunsch, P. Georgi
Publikováno v:
The journal of Physical Chemistry. B, 106, 2875-2883. American Chemical Society
Four rate-limiting processes for the formation of single-wall carbon nanotubes (SWCNT) could be identified by varying furnace temperature, gas type, and pressure in a pulsed-laser evaporation setup. One rate-limiting process accounts essentially for
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 37:2404-2411
Polytetrafluoroethylene powder (PTFE) was exposed to electron beam radiation in presence of air. The irradiation mainly resulted in chain scission and induction of oxygenated groups and radicals as well as unsaturation. The thermal behavior of the ir
Autor:
Ashton Partridge, Chung Yup Kim, Neil T. Kemp, Alan B. Kaiser, B. Chapman, A. Bartl, Jun Yeob Lee, J.S. Shapiro, Ocean Mercier, A. M. Carr, Chia-Jyi Liu, W.T. Smith, H. J. Trodahl, L. Dunsch, R. G. Buckley
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 37:953-960
We have measured the thermoelectric power and conductivity as a function of temperature of a wide range of polypyrrole samples, including a film of soluble polypyrrole synthesized chemically, and wrinkled films synthesized using indium–tin oxide el
Autor:
L. Dunsch, K. Roßberg
Publikováno v:
Electrochimica Acta. 44:2061-2071
Impedance spectra of free standing polyaniline membranes were recorded in the symmetric and the asymmetric cell configuration. The polyaniline membranes were made by solution-casting of chemically polymerised polyaniline. The impedance spectra are di
Autor:
Thomas Pichler, L. Dunsch, U. Kirbach, Mark S. Golden, Martin Knupfer, Ch. Jung, T. Böske, J. Fink, P. Kuran
Publikováno v:
Applied Physics. A, Materials Science & Processing, 66, 281-285. Springer Heidelberg
using photoemission and electron energy-loss spectroscopy in transmission. In particular, the impact of the isomer symmetry of the C82 cage (Cs or C3v) on the electronic structure and on the optical properties is analysed in detail. For both isomers,
Publikováno v:
Applied Physics A: Materials Science & Processing. 66:265-271
M = Sc, Y, La) are discussed. The first 13C hyperfine structure has been analyzed in detail and at least seven electronically different groups of carbon atoms could be assigned by simulations of the ESR spectra. The strong similarity of the 13C satel
Publikováno v:
Journal of Electroanalytical Chemistry. 443:49-62
Impedance spectra of electropolymerized polyaniline films were analysed by the theory of the impedance of macrohomogeneous porous electrodes. Specific ohmic and charge transfer resistivities were calculated, and their potential and pH dependence is d