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Journal articles on the topic 'Spectroscopie à relaxation diélectrique'

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1

Giuntini, Jean-Charles, A. Nicolas, Guillaume Maurin, Sabine Devautour-Vinot, and François Henn. "Dynamique des ions et propriétés de surface de certains aluminosilicates : Étude par spectroscopie de relaxation diélectrique." Annales de Chimie Science des Matériaux 30, no. 3 (June 28, 2005): 235–46. http://dx.doi.org/10.3166/acsm.30.235-246.

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2

Cebeillac, P., D. Chatain, C. Lacabanne, A. Bernes, C. de Goÿs, J. P. Ibar, and J. Dupuis. "Caractérisation des copolymères amorphes par spectroscopie diélectrique TSC/RMA." Matériaux & Techniques 77, no. 4-5 (1989): 33–37. http://dx.doi.org/10.1051/mattech/198977040033.

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3

Moreau, Julien, and Lionel Lartigue. "Plasmons polaritons de surface." Photoniques, no. 115 (August 8, 2022): 46–50. http://dx.doi.org/10.1051/photon/202211246.

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La plasmonique est l’étude de l’interaction entre les électrons libres d’un métal et la lumière. Les plasmons polaritons de surface sont des modes plasmoniques localisés au niveau d’une interface entre un métal et un diélectrique. Ces ondes évanescentes, qui peuvent être obtenues expérimentalement par différentes approches, ont des propriétés de confinement du champ électrique qui trouvent de nombreuses applications dans le domaine des capteurs et de la spectroscopie.
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4

Elie, Volf. "Étude de la Relaxation Diélectrique du Dmso." Bulletin des Sociétés Chimiques Belges 93, no. 10 (September 1, 2010): 839–46. http://dx.doi.org/10.1002/bscb.19840931001.

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5

Bottreau, AM, and A. Merzouki. "Étude du comportement diélectrique de l'eau dans les milieux poreux, par spectroscopie en domaine de temps." Journal de Chimie Physique 91 (1994): 1461–74. http://dx.doi.org/10.1051/jcp/1994911461.

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6

Vicq, G., G. Delbos, J. M. Forniés Marquina, and K. Lamkaouchi. "Relaxation diélectrique de solutions aqueuses d'éthylène glycol aux micro-ondes." Journal de Chimie Physique et de Physico-Chimie Biologique 96, no. 8 (September 1999): 1426–49. http://dx.doi.org/10.1051/jcp:1999220.

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7

de Brouckère, L., and A. Lecocq-Robert. "Le Comportement Diélectrique des Polymères en Solutions Diluées III. Influence du Solvant sur le Moment Dipolaire et sur la Relaxation Diélectrique." Bulletin des Sociétés Chimiques Belges 70, no. 9-10 (September 1, 2010): 549–75. http://dx.doi.org/10.1002/bscb.19610700907.

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8

Raïssi, Tarek, Laurent Ibos, Nacim Ramdani, and Yves Candau. "Analyse de spectres de relaxation diélectrique par inversion ensembliste. Une première approche." Revue internationale de génie électrique 8, no. 1 (February 2005): 97–117. http://dx.doi.org/10.3166/rige.8.97-117.

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9

Ravez, J., G. T. Joo, M. Dong, and J. M. Reau. "Ferroélectricité et relaxation diélectrique basse fréquence dans un cristal de type LiTaO3." Physica Status Solidi (a) 146, no. 2 (December 16, 1994): K71—K75. http://dx.doi.org/10.1002/pssa.2211460249.

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10

Béné, G. J. "Introduction à la spectroscopie de la relaxation : application à l'eau biologique." Annales de Physique 10, no. 6 (1985): 1139–44. http://dx.doi.org/10.1051/anphys:019850010060113900.

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11

Giuntini, Jean-Charles, Sabine Devautour, François Henn, Jean-Marc Douillard, Jean-Victor Zanchetta, and Jacques Vanderschueren. "L'utilisation de la relaxation diélectrique dans l'étude des propriétés de surface des aluminosilicates." Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry 1, no. 9 (September 1998): 577–86. http://dx.doi.org/10.1016/s1387-1609(98)80013-3.

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12

Largeteau, A., J. L. Miane, and J. Ravez. "Modelisation d'une relaxation diélectrique de type charges d'espace dans les ferrites NiZn à couches d'arrět." Physica Status Solidi (a) 125, no. 2 (June 16, 1991): 697–705. http://dx.doi.org/10.1002/pssa.2211250228.

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13

Lascoux, N., G. M. Gale, and R. Laenen. "Spectroscopie infrarouge femtoseconde de la liaison hydrogène dans le méthanol : relaxation vibrationnelle et structurelle." Le Journal de Physique IV 10, PR8 (May 2000): Pr8–245. http://dx.doi.org/10.1051/jp4:2000874.

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14

Carru, JC, P. Tabourier, and JM Wacrenier. "Etude de la relaxation diélectrique de 1Hz à 109Hz dans les zéolites A, X, Y, M, ZSM5." Journal de Chimie Physique 88 (1991): 307–27. http://dx.doi.org/10.1051/jcp/1991880307.

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15

Guillaume, François, Michel Perrot, and Jean Lascombe. "Étude par spectroscopie de diffusion raman de la relaxation vibrationnelle de l'ion nitrate en solution aqueuse dans les états liquides et vitreux." Journal de Chimie Physique 82 (1985): 949–56. http://dx.doi.org/10.1051/jcp/1985820949.

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16

KAHOULI, Abdelkader. "Spectroscopie diélectrique appliquée aux polymères." Conversion de l'énergie électrique, August 2016. http://dx.doi.org/10.51257/a-v1-d2308.

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17

GALLOT-LAVALLEE, Olivier, and Patrice GONON. "Caractérisation des polymères par spectroscopie diélectrique." Plastiques et composites, October 2016. http://dx.doi.org/10.51257/a-v1-am3141.

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18

Redman, D. A., Q. Shu, S. W. Brown, A. Lenef, Y. Lrj, J. Whitaker, S. C. Rand, S. Satoh, K. Tsuji, and S. Yazu. "Electronic Structure of N-V Centers and Terahertz Spectroscopy of Diamond." MRS Proceedings 242 (1992). http://dx.doi.org/10.1557/proc-242-127.

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ABSTRACTWe report an essentially complete characterization of energies and relaxation processes of the lowest seven electronic states of the N-V (nitrogen-vacancy) center in diamond using several different nonlinear laser spectroscopie techniques. We have also applied ultrafast optical techniques to measure dielectric properties of CVD and bulk diamond in the 0.3–1.6 THz range for the first time.
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19

Rodney, P. J., M. I. Freedhoff, A. P. Marchetti, G. L. McLendon, and P. M. Fauchet. "Optical Properties of Cuprous Oxide Nanocrystals." MRS Proceedings 452 (1996). http://dx.doi.org/10.1557/proc-452-383.

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AbstractOptical properties of size restricted Cu2O obtained through aqueous and non aqueous preparations are compared with those of commercially available bulk crystals. One method of synthesis involved using polyvinyl alcohol as a restraining agent in an aqueous preparation to produce nanocrystals having diameters with a mean of 11 nm and a standard deviation of 6 nm. Low-temperature spectroscopie studies indicate size restriction effects are manifest by a decrease in exciton luminescence and a 3.0 to 9.0 meV blue shift in 0,0 transition. No noticeable changes in the dynamics were observed for the nanocrystals, indicating no alteration or relaxation of the selection rules for the direct forbidden transition.
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20

Boher, P., M. Stehle, J. L. Stehle, E. Fogarassy, J. J. Grob, A. Grob, and D. Muller. "Crystallization of Si(1-yCy Films by Excimer Laser Annealing: Characterization of the Microstructure of the Films." MRS Proceedings 452 (1996). http://dx.doi.org/10.1557/proc-452-959.

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AbstractEpitaxial Si(1-y)Cy substitutional alloy layers are prepared on monocrystalline silicon substrates by carbon multiple energy ion implantation followed by XeCl excimer laser annealing on large surfaces. Structural analysis of the films before and after laser annealing are made very precisely using spectroscopie ellipsometry (SE), x-ray diffraction (XRD) and Rutherford backscattering (RBS) techniques. We show that annealing energy densities higher than 2J/cm2 result in monocrystalline epitaxial layers with low quantity of defects. The lattice contraction due to the carbon inclusion increases with the implanted C concentration up to about 1.1%. For higher values a more complex behaviour is observed with partial (or total) relaxation of the layer and/or carbide formation‥
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21

Mulligan, W. P., and T. J. Coutts. "Measurement of the Effective Mass of Transparent Conducting films of Cadmium Tin Oxide." MRS Proceedings 471 (1997). http://dx.doi.org/10.1557/proc-471-117.

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ABSTRACTWe have prepared transparent conducting films of cadmium stannate (Cd2SnO4 with resistivity as low as 1.5×10-4 Ω cm. The resistivity of these films is low because of their surprisingly high mobility (60 cm2 V-1 sec-1) at high carrier concentration (7×1020cm-3). We conducted an investigation to determine whether the high mobility is due to unusually low carrier effective mass or to a long carrier relaxation time. The conductivity effective mass and relaxation time were estimated by Drude free-electron modeling of reflectance and transmittance spectroscopie measurements. The Drude model appears to represent the behavior of cadmium tin oxide very well. The optical effective mass of the electrons in cadmium stannate is about 0.35 mo, which is similar to that of other transparent conducting oxides. By varying the doping level, we were able to fabricate films with various levels of degeneracy, but these showed no significant difference in effective mass.We were also able to determine the carrier effective mass and the relaxation time by measuring four separate electron transport coefficients: conductivity, Hall, Seebeck, and transverse Nernst-Ettingshausen (Nernst). The Fermi level was found to vary from 0.31 to 0.83 eV above the conduction band minimum, and the conduction band was very close to parabolic in this range, with m* ∼ 0.33 mo, in good agreement with the optical result. We conclude that the effective mass of electrons in cadmium stannate is similar to electrons in other transparent conducting oxides and that high mobility results from a relatively long carrier relaxation time.
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