Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Y. Pelous"'
Publikováno v:
Synthetic Metals. 68:213-219
The structure and electrochemical properties of poly( p -phenylene) (PPP) films synthesized by oxidation of benzene in SO 2 were investigated by IR, UV, scanning electron microscopy and X-ray diffraction. In the presence of a Lewis acid (SbF 5 ) or b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71179b9c9898a66af543f4d5e4544f1c
https://doi.org/10.1016/0379-6779(94)02305-i
https://doi.org/10.1016/0379-6779(94)02305-i
Publikováno v:
Synthetic Metals. 41:291-294
Characterization of implanted PPP thin films was carried out by XPS and Resonance Raman Scattering. It is shown that depending on the implantation parameters damages may be important and show up as carbon bond breaking with oxygen accumulation loadin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::840620f2dfc88864d1e64abcff380246
https://doi.org/10.1016/0379-6779(91)91065-i
https://doi.org/10.1016/0379-6779(91)91065-i
Publikováno v:
IEEE Photonics Technology Letters. 5:692-694
An experimental setup to measure electrooptic coefficient in nonlinear material is described. This setup consists of an optical heterodyne Mach-Zehnder interferometer. The reference modulation is obtained with an acoustooptic light modulator. The tes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fba48663f1185be3e4465fa7c77201b
https://doi.org/10.1109/68.219713
https://doi.org/10.1109/68.219713
Publikováno v:
Materials Science and Engineering: B. 9:455-457
Glasses doped with erbium or ytterbium were realized using the sol-gel method, which allows a high rare earth concentration without segregation to be obtained. The realization of doped glasses by sol-gel is described. The glasses were analysed by sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6247e156a0873c092fa926567b84e14
https://doi.org/10.1016/0921-5107(91)90072-4
https://doi.org/10.1016/0921-5107(91)90072-4
Publikováno v:
Conjugated Polymeric Materials: Opportunities in Electronics, Optoelectronics, and Molecular Electronics ISBN: 9789401074162
Films of poly(paraphenylene) were synthesized by electroreduction and doped by ion implantation. Evolution of concentration profiles upon annealing was followed by Secondary Ion Mass Spectroscopy on n-doped with Cs or Na or on p-doped with I samples.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4396d0a75e82028d4f8755b7f79466c
https://doi.org/10.1007/978-94-009-2041-5_18
https://doi.org/10.1007/978-94-009-2041-5_18
Publikováno v:
Le Journal de Physique Colloques. 44:C3-745
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4b58e016d31eb48fd3b0728de1f46ff
https://doi.org/10.1051/jphyscol:19833147
https://doi.org/10.1051/jphyscol:19833147
Autor:
Serge Lefrant, Gerard Froyer, Jean-Francois Fauvarque, Michel-Alain Petit, Abdelouafi Digua, Y. Pelous, S Krichene
Publikováno v:
Synthetic Metals. 17:607-612
We present an optical study of polyparaphenylene samples polymerized by electoreduction of 4-4′ dibromo-biphenyl. By elemental analysis, a smaller amount of remaining bromine atoms is found with respect to PPP samples synthesized by the “Yamamoto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1db152b216c3f24b7d6b42d94ce3b754
https://doi.org/10.1016/0379-6779(87)90806-x
https://doi.org/10.1016/0379-6779(87)90806-x
Publikováno v:
Synthetic Metals. 32:103-112
A new method for preparing polyparaphenylene films by electrochemical oxidation of benzene in SbF5SO2 medium is described. It is shown that formation of a π-complex between SbF5 and benzene lowers the benzene oxidation potential by about 0.8 V. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c16766ecce5abe0ec420648ad87ac75
https://doi.org/10.1016/0379-6779(89)90833-3
https://doi.org/10.1016/0379-6779(89)90833-3
Publikováno v:
Makromolekulare Chemie. Macromolecular Symposia. :589-596
In our laboratory, we have studied in a systematic way, ion effect on the conductivity of the polyparaphenylene (PPP) versus implantation parameters. In a first time, we have made a basic study on PPP pallets, and then compared these results with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::051e097dbeae48856276081f54e0dc10
https://doi.org/10.1002/masy.19880200157
https://doi.org/10.1002/masy.19880200157
Autor:
Y. Pelous, S Krichene, Serge Lefrant, Jean-Pierre Buisson, Francois Maurice, Gerard Froyer, J. Y. Goblot, Claude Fabre
Publikováno v:
Molecular Crystals and Liquid Crystals. 118:301-304
A vibrational study of poly-p-phenylene (PPP) prepared by the Kovacic method is presented. A comparison is made between the vibrational features (in both IR and Raman) of undoped PPP, PPP chemically doped using AsF5 or electrochemically doped with As
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56fc27442a2888a8f6174d55f6a9c8d3
https://doi.org/10.1080/00268948508076228
https://doi.org/10.1080/00268948508076228