D. Chapron
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View article: High-Quality Hexagonal Boron Nitride Selectively Grown on Patterned Epigraphene by MOVPE
High-Quality Hexagonal Boron Nitride Selectively Grown on Patterned Epigraphene by MOVPE Open
International audience
View article: High-quality hexagonal boron nitride selectively grown on patterned epigraphene by MOVPE
High-quality hexagonal boron nitride selectively grown on patterned epigraphene by MOVPE Open
Hexagonal boron nitride encapsulation is the method of choice for protecting graphene from environmental doping and impurity scattering. It was previously demonstrated that metal-organic vapor phase epitaxy (MOVPE) grows epitaxially ordere…
View article: Synthesis of High Molecular Weight Stereo-Di-Block Copolymers Driven by a Co-Initiator Free Catalyst
Synthesis of High Molecular Weight Stereo-Di-Block Copolymers Driven by a Co-Initiator Free Catalyst Open
Stereo-diblock copolymers of high molecular weight polylactide (PLA) were synthetized by the one pot-sequential addition method assisted by a heteroscorpionate catalyst without the need of a co-initiator. The alkyl zinc organometallic hete…
View article: Data Mining of Polymer Phase Transitions upon Temperature Changes by Small and Wide-Angle X-ray Scattering Combined with Raman Spectroscopy
Data Mining of Polymer Phase Transitions upon Temperature Changes by Small and Wide-Angle X-ray Scattering Combined with Raman Spectroscopy Open
The complex physical transformations of polymers upon external thermodynamic changes are related to the molecular length of the polymer and its associated multifaceted energetic balance. The understanding of subtle transitions or multistep…
View article: INTEREST OF IN SITU-RAMAN SPECTROSCOPY IN THE OPTIMIZATION OF PIEZOELECTRIC FIBERS FOR THE DEVELOPMENT OF ENERGY HARVESTERS
INTEREST OF IN SITU-RAMAN SPECTROSCOPY IN THE OPTIMIZATION OF PIEZOELECTRIC FIBERS FOR THE DEVELOPMENT OF ENERGY HARVESTERS Open
Energy harvesting is a promising concept that can be used in the development of smart textiles to solve one of the major issues: energy supply. Producing PVDF piezoelectric fibers is a possible way. However, to ensure the piezoelectric cha…
View article: In‐situ Raman monitoring of the poly(vinylidene fluoride) crystalline structure during a melt‐spinning process
In‐situ Raman monitoring of the poly(vinylidene fluoride) crystalline structure during a melt‐spinning process Open
Poly(vinylidene fluoride) (PVDF) fibres used to develop sensors or energy harvesters have great potential in the sector of portable electronic devices and especially in the development of smart textiles. This polymorphic polymer is known f…
View article: Characterization of oxygen vacancies in SrTiO3 by means of anelastic and Raman spectroscopy
Characterization of oxygen vacancies in SrTiO3 by means of anelastic and Raman spectroscopy Open
Oxygen vacancies in reduced SrTiO3 are investigated by Raman spectroscopy and dynamic elastic modulus measurements. The anelastic spectrum is used to evaluate the amount and state of the O vacancies, which result to be almost completely pa…
View article: Time evolution of Symmetry-forbidden Raman lines activated by photorefractivity
Time evolution of Symmetry-forbidden Raman lines activated by photorefractivity Open
Transmission Raman spectroscopy experiments were performed on iron doped congruent lithium niobate within two –in principle equivalent- configurations, namely Y ( ZX ) Y and Y ( XZ ) Y . While the former respects the Raman selection rules,…
View article: 4A3_0475_ INTEREST OF IN SITU-RAMAN SPECTROSCOPY IN THE OPTIMIZATION OF PIEZOELECTRIC FIBERS FOR THE DEVELOPMENT OF ENERGY HARVESTERS.
4A3_0475_ INTEREST OF IN SITU-RAMAN SPECTROSCOPY IN THE OPTIMIZATION OF PIEZOELECTRIC FIBERS FOR THE DEVELOPMENT OF ENERGY HARVESTERS. Open
Energy harvesting is a promising concept that can be used in the development of smart textiles to solve one of the major issues: energy supply. Producing PVDF piezoelectric fibers is a possible way. However, to ensure the piezoelectric cha…
View article: Photorefractive Lithium Niobate crystals: light polarisation rotation highlighted by transmission Raman spectroscopy
Photorefractive Lithium Niobate crystals: light polarisation rotation highlighted by transmission Raman spectroscopy Open
International audience
View article: Zr doping on lithium niobate crystals: Raman spectroscopy and chemometrics
Zr doping on lithium niobate crystals: Raman spectroscopy and chemometrics Open
Raman measurements were investigated on Zr-doped lithium niobate LiNbO3 crystals with different concentrations. Spectra were treated by fitting procedure and principal component analysis which both provide results consistent with each othe…
View article: On the exploitation of optical signal from Raman spectroscopy for in-situ conversion monitoring of emulsion polymerization
On the exploitation of optical signal from Raman spectroscopy for in-situ conversion monitoring of emulsion polymerization Open
Raman spectroscopy was used for in-situ monitoring of styrene emulsion polymerization with sodium dodecyl sulfate and potassium persulfate as the surfactant and initiator, respectively. A new method for analyzing Raman data and calculating…
View article: Synthesis of New Isostructural Orthoborates NaBaR(BO3)2 with R = Tb, Dy, Ho, Er, Tm and Lu
Synthesis of New Isostructural Orthoborates NaBaR(BO3)2 with R = Tb, Dy, Ho, Er, Tm and Lu Open
Six new rare-earth orthoborates NaBaR(BO3)2, with R = Tb, Dy, Ho, Er, Tm, Lu were synthesized using a multiple-step solid-state reaction. These new orthoborates continue the previously described isostructural lines of three-cation orthobor…