F. Gendron

Université Sorbonne Nouvelle

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

C. Julien

Sorbonne Université

A. Mauger

Sorbonne Université

Karim Zaghib

Concordia University

M. Kopec

J. R. Dygas

F. Krok

C. Porte

Centre National de la Recherche Scientifique

B. Clerjaud

Sorbonne Université

Atmane Ait-Salah

Centre National de la Recherche Scientifique

John B. Goodenough

The University of Texas at Austin

Cooperative Institutions

Centre National de la Recherche Scientifique

Sorbonne Université

Université Paris Cité

Institut des NanoSciences de Paris

Institut de minéralogie, de physique des matériaux et de cosmochimie

Délégation Paris 6

PHENIX laboratory

Polish Academy of Sciences

Warsaw University of Technology

Laboratoire de physique des Solides

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

LiCo_1−yB_yO₂ As Cathode Materials for Rechargeable Lithium Batteries

Chemistry of Materials (2010)

C. Julien A. Mauger H. Groult X. Zhang F. Gendron

Several substituted layered lithium cobaltates of formula Li0.999Co1−yByO2 (0.05 ≤ y ≤ 0.35) were synthesized and characterized by X-ray powder diffraction, Raman and FTIR spectroscopy, magnetic measurements, and ESR experiments. The compounds have been investigated as cathode materials in rechargeable lithium batteries and galvanostatic cycling are reported. Structural data showed that particles crystallized in the R3̅m structural symmetry and single-phased can be grown free of any impurity up to the boron concentration y ≤ 0.25, except for the presence of nickel impurity, as Ni is always present in the cobalt precursors. The voltage profiles of electrochemical cells including these compounds as the cathode were monitored against Li anode. The overall capacity of the oxides has been reduced by the sp metal substitution. However, more stable cycling performances have been observed compared to the performances of the native oxides. At 4.4 V cutoff voltage, the Li//LiCo0.75B0.25O2 cell exhibits an almost constant gravimetric capacity of ca. 127 mA h/g up to the 16th cycle. The origin of the benefit of boron doping is discussed.

Gravimetric analysis

10.1021/cm1026865

Cite

Citations (28)

ChemInform Abstract: Novel Lithium Iron Pyrophosphate (LiFe_1.5P₂O₇) as a Positive Electrode for Li‐Ion Batteries.

ChemInform (2007)

C.V. Ramana Atmane Ait-Salah Satoshi Utsunomiya A. Mauger F. Gendron

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

10.1002/chin.200801015

Cite

Citations (0)

Impurity effects in Li1.33Mn1.67O4

HAL (Le Centre pour la Communication Scientifique Directe) (2008)

M. Kopec J. R. Dygas F. Krok A. Mauger F. Gendron

Source

Cite

Citations (0)

Luminescence Yield of SrS:Ce,Na Powders

Materials science forum (1995)

B. Hütti U. Troppenz H. Venghaus R.H. Mauch J. Kreissl

10.4028/www.scientific.net/msf.182-184.263

Cite

Citations (14)

Local mode spectroscopy and photo-induced effects of oxygen-related centers in semi-insulating gallium arsenide

Journal of Applied Physics (1990)

Chunying Song B. Pajot F. Gendron

Vibrational absorption of semi-insulating O-containing GaAs samples has been investigated under high-resolution spectroscopy at low temperature and many sharp lines due to localized modes have been observed. Some of them, between 714 and 730 cm−1 had already been ascribed to some (Ga,O)-related center having features common with the vacancy-oxygen defect in silicon, but a new state related to this center, giving a local mode near 713 cm−1 is reported here for the first time. Another new low-frequency mode at 604 cm−1 is also reported, involving probably nitrogen or more likely oxygen bonded to two next-nearest-neighbor Ga atoms. The attribution of new modes in the 950–1400 cm−1 spectral region to complexes involving oxygen, arsenic, and eventually impurities with 100% isotopic abundance is discussed. The effects of near-infrared illumination on the observation of the (Ga,O)-related modes between 713 and 730 cm−1 and on a new mode at 983 cm−1 have been studied. Tentative explanations based either on metastability or on photo-induced changes of the charge states of the centers are proposed. These results seem to show that in GaAs, oxygen decorates native centers and that this kind of study could provide a clue to their understanding.

Metastability

10.1063/1.344516

Cite

Citations (31)

Nitrogen-Hydrogen Complexes in GaP and GaAs

Materials science forum (1993)

W.S. Hahn B. Clerjaud D. Côté F. Gendron C. Porte

10.4028/www.scientific.net/msf.143-147.277

Cite

Citations (7)

Isotopic Effects in GaAs:Ni

Materials science forum (1989)

B. Clerjaud Denyse Côté F. Gendron Melanie T. S. Krause W. Ulrici

10.4028/www.scientific.net/msf.38-41.775

Cite

Citations (4)

Inverted hysteresis loops in ultrathin epitaxial yttrium iron garnet films

IEEE International Digest of Technical Papers on Magnetics Conference (2002)

E. Popova N. Keller François Jomard M.-C. Brianso Thomas Hauet

Summary form only given. Partially inverted hysteresis loops have been observed for ultrathin films of yttrium iron garnet (Y/sub 3/Fe/sub 5/O/sub 12/ or YIG). Single-crystalline YIG films were prepared on yttrium aluminum garnet (Y/sub 3/Al/sub 5/O/sub 12/ or YAG) substrates by pulsed laser deposition. The film thickness was varied from 100 /spl Aring/ to 4600 /spl Aring/. Epitaxial growth of YIG on YAG was obtained in spite of the lattice mismatch of 3%. [111] and [110] oriented substrates were used in order to study in-plane anisotropy, which is found to be only uniaxial for the films deposited on [110] oriented substrates. The magnetic hysteresis loops recorded for ultrathin YIG films are partially inverted at room temperature. This can be explained by an antiferromagnetic coupling between two different magnetic phases whose presence was detected by ferromagnetic resonance measurements. A composition study by secondary ion mass spectroscopy shows interdiffusion of Fe and Al occurs at the film/substrate. The interaction field between these two phases is determined from measurements of the minor hysteresis loops.

Yttrium Iron Garnet

Hysteresis

Pulsed Laser Deposition

10.1109/intmag.2002.1001073

Cite

Citations (0)

Optical properties of Ni+(d9) in ZnS

Physica B+C (1983)

B. Clerjaud A. Gélineau F. Gendron C. Porte J. M. Baranowski

Zinc sulfide

10.1016/0378-4363(83)90298-x

Cite