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pro vyhledávání: '"M. Palpacuer"'
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Autor:
J. C. Ameline, Y Delugeard, Eric Anglaret, A Moreac, Karine Chesnel, Jean-Louis Sauvajol, M. Palpacuer, B. Hennion, A. Girard
Publikováno v:
Journal de Chimie Physique et de Physico-Chimie Biologique. 95:1441-1444
Nous presentons un certain nombre de resultats originaux concernant la dynamique vibrationnelle de la phase polymere et des phases obtenues par trempe du CsC 60 . Les spectres infrarouge de la phase polymere sont interpretes dans le cadre d'un abaiss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3287b26023b009344d9e8d285e14590
https://doi.org/10.1051/jcp:1998300
https://doi.org/10.1051/jcp:1998300
Publikováno v:
physica status solidi (b). 162:9-60
In the following, in a first part we report and discuss experimental results concerning pristine cis-trans polyacetylene, in a second part we present the different models which have been developed to explain the above preceding results. We have tried
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa9b249ca1f37e6bae84bdd46927658b
https://doi.org/10.1002/pssb.2221620102
https://doi.org/10.1002/pssb.2221620102
Autor:
Alain Moréac, D. Bormann, A. Girard, J.L. Sauvajol, O. Chauvet, László Forró, F. Brocard, F. Rachdi, M. Palpacuer, Christophe Goze
Publikováno v:
Synthetic Metals. 86:2325-2326
We report a room-temperature Raman investigation of C 60 , stable-in-air phototransformed C 60 and AC 60 phases (A=Rb,Cs) as excited at 776 nm. The existence of a stable-in-air phototransformed C 60 state is confirmed. The low-frequency Raman spectru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33da2d007417a4b4db41c5e377975fb2
https://doi.org/10.1016/s0379-6779(97)81144-7
https://doi.org/10.1016/s0379-6779(97)81144-7
Autor:
Joël J. E. Moreau, A.J. Dianoux, M. Palpacuer, J.L. Sauvajol, D. Bormann, Jean-Pierre Lère-Porte
Publikováno v:
Synthetic Metals. 84:569-570
We report the phonon density of states of intrachain and interchain low-frequency modes in polythiophene. These new results were obtained by inelastic incoherent neutron scattering experiments. Raman, photoluminescence and X-ray diffraction spectra m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2deec4e5685fc980d76921b555cdfc5b
https://doi.org/10.1016/s0379-6779(97)80862-4
https://doi.org/10.1016/s0379-6779(97)80862-4
Publikováno v:
Journal de Physique. 44:1307-1316
This report presents the results of measurements of transmission and reflexion spectra of polyacetylene films in the infrared range 4-25 μm. [CH(I3-) Y]x samples were used with various thickness for iodine doping level Y up to 0.07. We used a high d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab23b81a5c2d9b80f4db78f050acb616
https://doi.org/10.1051/jphys:0198300440110130700
https://doi.org/10.1051/jphys:0198300440110130700
Publikováno v:
Le Journal de Physique Colloques. 44:C3-345
The infrared transmission of thin films of polyacetylene has been measured for various doping levels ( 0 ≤ Y ≤ 7%). The analysis of results shows that modes ω1 (1400cm-1) and ω2 (900cm-1) arising from structural defects are stable for Y > 2%, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8373fbcb78e8ab312aa94944a6a3adb
https://doi.org/10.1051/jphyscol:1983369
https://doi.org/10.1051/jphyscol:1983369
Publikováno v:
Synthetic Metals. 28:D197-D201
d.c. and optical conductivity in the far infrared have been measured for iodine doped oriented polyacetylene as a function of temperature and doping level. It is shown that the mechanism limiting the conductivity are not the same for the two processe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93377e237669ee654152bb53f520ed18
https://doi.org/10.1016/0379-6779(89)90692-9
https://doi.org/10.1016/0379-6779(89)90692-9
Publikováno v:
Polymer. 23:1847-1850
The physical properties of polyacetylene films are strongly modified by doping and in particular its optical absorption drastically increases in the middle infra-red range. The aim of this report is to study the behaviour of infra-red transmission be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca6c8db1c398ac188fc84a77c131d591
https://doi.org/10.1016/0032-3861(82)90133-1
https://doi.org/10.1016/0032-3861(82)90133-1
Autor:
M Palpacuer, G Mas
Publikováno v:
Nouvelle Revue d'Optique. 7:27-32
Several set-ups using coherent light allow the recording of the autocorrelation function as well as of the power spectral density of speckle patterns observed in the image of a diffuse screen or in the scattering beam itself. Results obtained from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1eb0747f13be3669ef159ce8e0ca9a7
https://doi.org/10.1088/0335-7368/7/1/302
https://doi.org/10.1088/0335-7368/7/1/302