Université de Bordeaux
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Scientific Publications

Optical Alignment of Si-Containing Nanodomains Formed by Photoresponsive Amorphous Block Copolymer Thin FilmsOptical Alignment of Si-Containing Nanodomains Formed by Photoresponsive Amorphous Block Copolymer Thin Films

A series of amorphous block copolymers (BCPs), consisting of a low-glass-transition polydimethylsiloxane (PDMS) block associated with a photoresponsive azobenzene-containing poly(disperse red 1...

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p-Doping of a Hole Transport Material via a Poly(ionic liquid) for over 20% Efficiency and Hysteresis-Free Perovskite Solar Cellsp-Doping of a Hole Transport Material via a Poly(ionic liquid) for over 20% Efficiency and Hysteresis-Free Perovskite Solar Cells

An efficient metal-free formulation of a hole transport material (HTM) based on an ionic liquid polymer is developed for n–i–p perovskite solar cells (PSCs), to address reproducibility issues...

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AFM images of height and phase of fluorinated polymer blend films at different terpolymer/copolymer ratios (100/0, 95/5, 90/10, 80/20, 70/30, 0/100) (tapping mode, 1 µm × 1 µm scan area).High and Temperature-Independent Dielectric Constant Dielectrics from PVDF-Based Terpolymer and Copolymer Blends

Relaxor ferroelectric polymers exhibit high k at their structural phase transition around room temperature. They are particularly attractive as gate dielectric in organic field effect transistor...

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Synthesis of Carboxyl-EDOT as a Versatile Addition and Additive to PEDOT:PSSSynthesis of Carboxyl-EDOT as a Versatile Addition and Additive to PEDOT:PSS

Two-step synthesis of EDOT (3,4-ethylenedioxythiophene) derivate bearing a carboxylic acid group (carboxyl-EDOT) is presented. This reactive monomer has been copolymerized with EDOT to afford PEDOT...

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Post-functionalization of polyvinylcarbazoles: An open route towards hole transporting materials for perovskite solar cellsPost-functionalization of polyvinylcarbazoles: An open route towards hole transporting materials for perovskite solar cells

We report on the potential of tuning poly(9-vinylcarbazole) (PVK) properties through functionalization for an application as hole transport material (HTM) for perovskite solar cells (PSCs). The...

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A ferroelectric polymer introduces addressability in electrophoreticdisplay cellsA ferroelectric polymer introduces addressability in electrophoreticdisplay cells

During the last decades, tremendous efforts have been carried out to develop flexible electronics for a vast array of applications. Among all different applications investigated in this area,...

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Bicontinuous Network Nanostructure with Tunable Thickness Formed on Asymmetric Triblock Terpolymer Thick FilmsBicontinuous Network Nanostructure with Tunable Thickness Formed on Asymmetric Triblock Terpolymer Thick Films

Asymmetric poly(1,1-dimethyl silacyclobutane)-block-polystyrene-block-poly(2-vinyl pyridine) (PDMSB-b-PS-b-P2VP) thick films, consisting of a spongelike substructure topped by a nanostructured dense...

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Periodic Bicontinuous Structures Formed on the Top Surface of Asymmetric Triblock Terpolymer Thick FilmsPeriodic Bicontinuous Structures Formed on the Top Surface of Asymmetric Triblock Terpolymer Thick Films

The combination of the nonsolvent-induced phase separation (NIPS) process with a solvent vapor annealing (SVA) treatment is used to produce asymmetric and hydrophobic thick films having different...

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Tuning the rheology of polymer conducting inks for various deposition processesTuning the rheology of polymer conducting inks for various deposition processes

Organic semiconducting polymers are attractive because of their competitive price and low processability requirements. Aqueous solutions of these polymers can be deposited with a variety of processes...

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Photopatternable High-k Fluoropolymer Dielectrics Bearing Pendent Azido GroupsPhotopatternable Highk Fluoropolymer Dielectrics Bearing Pendent Azido Groups

Photopatternable fluoropolymers with high dielectric constant were prepared by direct azidation of commercially available poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene). The...

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Introducing Functionality to Fluorinated Electroactive PolymersIntroducing Functionality to Fluorinated Electroactive Polymers

Fluorinated electroactive polymers (FEPs) areamong the most interesting insulating materials for theproduction of organic electronic devices. Their ability totune their response to an applied...

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Role of Oxide/Metal Bilayer Electrodes in Solution Processed Organic Field Effect TransistorsRole of Oxide/Metal Bilayer Electrodes in Solution Processed Organic Field Effect Transistors

High performance, air stable and solution-processed small molecule 2,7-dioctyl[1]benzothieno[3,2-b]benzothiophene (C8-BTBT) based organic field-effect transistors (OFETs) with various electrode...

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Materials for Transparent Electrodes: From Metal Oxides to Organic AlternativesMaterials for Transparent Electrodes: From Metal Oxides to Organic Alternatives

Optoelectronic devices, such as displays, are now omnipresent in our daily life. A crucial component of these devices is a transparent electrode, which allows the in‐ and outcoupling of light. With...

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A Multifunctional Interlayer for Solution Processed High Performance Indium Oxide TransistorsA Multifunctional Interlayer for Solution Processed High Performance Indium Oxide Transistors

Multiple functionality of tungsten polyoxometalate (POM) has been achieved applying it as interfacial layer for solution processed high performance In2O3 thin film transistors, which results in...

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Vertical Tunnel Junction Embedding a Spin Crossover Molecular FilmVertical Tunnel Junction Embedding a Spin Crossover Molecular Film

Thin films of a molecular spin crossover (SCO) Iron(II) complex featuring a high transition temperature are grown by sublimation in high vacuum on TSAu and investigated by X‐ray and UV...

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Tridodecylamine, an efficient charge control agent in non-polar media for electrophoretic inks applicationTridodecylamine, an efficient charge control agent in non-polar media for electrophoretic inks application

In order to obtain efficient electrophoretic inks, Tridodecylamine (Dod3N), has been studied as charge control agent (CCA) in a non-polar paraffin solvent (Isopar G) for various inorganic pigments...

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Correlating the Seebeck coefficient of thermoelectric polymer thin films to their charge transport mechanismCorrelating the Seebeck coefficient of thermoelectric polymer thin films to their charge transport mechanism

Room temperature flexible heat harvesters based on conducting polymers are ideally suited to cover the energy demands of the modern nomadic society. The optimization of their thermoelectric...

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Surface relief gratings formed by microphase-separated disperse red 1 acrylate-containing diblock copolymersSurface relief gratings formed by microphase-separated disperse red 1 acrylate-containing diblock copolymers

Sinusoidal surface-relief gratings (SRGs) formed by microphase separated photoresponsive poly(dimethylsiloxane)-block-poly(methyl acrylate-co-disperse red 1 acrylate) (PDMS-b-P(MA-co-DR1A)) chains...

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Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer NetworksMetallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks

Nanotemplates derived from the self-assembly of AB-type block copolymers provide an elegant route to achieve well-defined metallic dot arrays, even if the variety of pattern symmetries is restricted...

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Core-Shell Double Gyroid Structure Formed by Linear ABC Terpolymer Thin FilmsCore-Shell Double Gyroid Structure Formed by Linear ABC Terpolymer Thin Films

The synthesis and self‐assembly in thin‐film configuration of linear ABC triblock terpolymer chains consisting of polystyrene (PS), poly(2‐vinylpyridine) (P2VP), and polyisoprene (PI) are...

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Nanoscale Archimedean Tilings Formed by 3-Miktoarm Star Terpolymer Thin FilmsNanoscale Archimedean Tilings Formed by 3-Miktoarm Star Terpolymer Thin Films

3‐Miktoarm star terpolymer architecture (3µ‐ABC), consisting of three dissimilar polymer chains, A, B, and C connected at a junction point, provides a unique opportunity in the design of complex...

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Micellar-Mediated Block Copolymer Ordering Dynamics Revealed by In-Situ Grazing Incidence Small-Angle X-ray Scattering during Spin CoatingMicellar-Mediated Block Copolymer Ordering Dynamics Revealed by In-Situ Grazing Incidence Small-Angle X-ray Scattering during Spin Coating

Spin coating is one of the most versatile methods to generate nanostructured block copolymer (BCP) thin films which are highly desired for many applications such as nanolithography or organic...

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Enhancing the ferroelectric performance of P(VDF-co-TrFE) through modulation of crystallinity and polymorphismEnhancing the ferroelectric performance of P(VDF-co-TrFE) through modulation of crystallinity and polymorphism

The functional properties of P(VDF-co-TrFE) are strongly dependent on its structure, which, in turn, depends on processing conditions applied. In this work we investigate the P(VDF-co-TrFE)...

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Synthesis of Bioinspired Curcuminoid Small Molecules for Solution-Processed Organic Solar Cells with High Open-Circuit VoltageSynthesis of Bioinspired Curcuminoid Small Molecules for Solution-Processed Organic Solar Cells with High Open-Circuit Voltage

Borondifluoride complexes of curcuminoid derivatives end-capped with triphenylamine groups were designed for solution-processed bulk-heterojunction organic solar cells. They were obtained very simply...

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Aqueous PCDTBT:PC71BM Photovoltaic Inks Made by NanoprecipitationAqueous PCDTBT:PC71BM Photovoltaic Inks Made by Nanoprecipitation

The fabrication of organic solar cells from aqueous dispersions of photoactive nanoparticles has recently attracted the interest of the photovoltaic community, since these dispersions offer an...

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Mechanical strain induced changes in electrical characteristics of flexible, non-volatile ferroelectric OFET based memoryMechanical strain induced changes in electrical characteristics of flexible, non-volatile ferroelectric OFET based memory

Investigation of mechanical strain on the electrical characteristics of ferroelectric OFET base memory is crucial for novel flexible printed circuit. In this regards, the effects of compressive and...

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Photoactive donor-acceptor composite nanoparticles dispersed in waterPhotoactive donor-acceptor composite nanoparticles dispersed in water

A major issue that inhibits the large-scale fabrication of organic solar modules is the use of chlorinated solvents considered to be toxic and hazardous. In this work, composite particles of...

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Highly ordered nanoring arrays formed by template Si-containing triblock terpolymer thin filmsHighly ordered nanoring arrays formed by template Si-containing triblock terpolymer thin films

Laterally ordered nanorings with a periodicity of 38 nm are produced from the directed self‐assembly of poly(1,1‐dimethylsilacyclobutane)‐block‐polystyrene‐block‐poly(methyl methacrylate)...

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Templated Sub-100-nm-Thick Double-Gyroid Structure from Si-Containing Block Copolymer Thin FilmsTemplated Sub-100-nm-Thick Double-Gyroid Structure from Si-Containing Block Copolymer Thin Films

The directed self-assembly of diblock copolymer chains (poly(1,1-dimethyl silacyclobutane)-block-polystyrene, PDMSB-b-PS) into a thin film double gyroid structure is described. A decrease of the...

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All inkjet-printed piezoelectric electronic devices: energy generators, sensors and actuatorsAll inkjet-printed piezoelectric electronic devices: energy generators, sensors and actuators

Inkjet printing is considered to be a key technology in the field of flexible electronics due to its capability to deposit different types of materials in a controlled and defined manner. However,...

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Archimedean Tilings and Hierarchical Lamellar Morphology Formed by Semicrystalline Miktoarm Star Terpolymer Thin FilmsArchimedean Tilings and Hierarchical Lamellar Morphology Formed by Semicrystalline Miktoarm Star Terpolymer Thin Films

3-Miktoarm star terpolymer architecture provides a window of opportunity in the design of complex “three-colored” patterns at the nanometer scale. Here, thedirected self-assembly (DSA) of...

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Heteroleptic iridium (III) complexes with three different ligands:Unusual triplet emitters for light-emitting electrochemical cellsHeteroleptic iridium (III) complexes with three different ligands:Unusual triplet emitters for light-emitting electrochemical cells

Two cationic iridium (III) complexes [Ir(dfppy)(tpy)(bpy)](PF6) and [Ir(dfppy)(tpy)(phen)](PF6) bearing three different ligands were tested as triplet emitters for Light-Emitting Electrochemical...

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Solution-Processed p-Dopant as Interlayer in Polymer Solar CellsSolution-Processed p-Dopant as Interlayer in Polymer Solar Cells

We report here an original approach to dope the semiconducting polymer–metal interface in an inverted bulk-heterojunction (BHJ) organic solar cell. Solution-processed...

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Evidence of band bending induced by hole trapping at MAPbI3 perovskite/metal interfaceEvidence of band bending induced by hole trapping at MAPbI3 perovskite/metal interface

Electron injection by tunneling from a gold electrode and hole transport properties in polycrystalline MAPbI3 has been investigated using variable temperature experiments and numerical simulations....

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Piezoelectric polymer gated OFET: Cutting-edge electro-mechanical transducer for organic MEMS-based sensorsPiezoelectric polymer gated OFET: Cutting-edge electro-mechanical transducer for organic MEMS-based sensors

The growth of micro electro-mechanical system (MEMS) based sensors on the electronic market is forecast to be invigorated soon by the development of a new branch of MEMS-based sensors made of organic...

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Long-Term Stable Organic Photodetectors with Ultra Low Dark Currents for High Detectivity ApplicationsLong-Term Stable Organic Photodetectors with Ultra Low Dark Currents for High Detectivity Applications

Printed organic photodetectors can transform plastic, paper or glass into smart surfaces. This innovative technology is now growing exponentially due to the strong demand in human-machine interfaces....

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How To Choose Polyelectrolytes for Aqueous Dispersions of Conducting PEDOT ComplexesHow To Choose Polyelectrolytes for Aqueous Dispersions of Conducting PEDOT Complexes

By using different polysaccharide and polysulfonylimide type polyelectrolytes for the synthesis of aqueous PEDOT:polyelectrolyte dispersions, the influence of the polyelectrolyte backbone and of the...

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An Alternative Anionic Polyelectrolyte for Aqueous PEDOT Dispersions: Toward Printable Transparent ElectrodesAn Alternative Anionic Polyelectrolyte for Aqueous PEDOT Dispersions: Toward Printable Transparent Electrodes

Organic conducting polymers are promising electrode materials for printable organic electronics. One of the most studied conducting polymers is PEDOT:PSS, which is sufficiently conductive and...

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Solution-processed blue phosphorescent OLEDs with carbazole-based polymeric host materialsSolution-processed blue phosphorescent OLEDs with carbazole-based polymeric host materials

Abstract A new carbazole-based polymer PEPEK varying from the previously reported PEPK by the length of the spacer between the polymer backbone and the pendent carbazole moiety was investigated as...

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Lanthanum Hexaboride As Novel Interlayer for Improving the Thermal Stability of P3HT:PCBM Organic Solar CellsLanthanum Hexaboride As Novel Interlayer for Improving the Thermal Stability of P3HT:PCBM Organic Solar Cells

For efficient organic photovoltaic (OPV) solar cells, a low work function electrode is necessary to enhance the built-in voltage of the active layer, thereby improving the overall efficiency. Calcium...

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