A5067413738- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Nanowire Synthesis and Applications
- Perovskite Materials and Applications
- solar cell performance optimization
- Nanomaterials and Printing Technologies
- Semiconductor materials and interfaces
- Energy Harvesting in Wireless Networks
- Molecular Junctions and Nanostructures
- Silicon and Solar Cell Technologies
- Neuroscience and Neural Engineering
- ZnO doping and properties
- Luminescence and Fluorescent Materials
- Silicon Nanostructures and Photoluminescence
- Ga2O3 and related materials
- Photovoltaic Systems and Sustainability
- Optical Wireless Communication Technologies
- Additive Manufacturing and 3D Printing Technologies
- Green IT and Sustainability
- RFID technology advancements
- TiO2 Photocatalysis and Solar Cells
- Advanced Polymer Synthesis and Characterization
- Industrial Engineering and Technologies
- Radiative Heat Transfer Studies
Centre Interdisciplinaire de Nanoscience de Marseille
2014-2020
Centre National de la Recherche Scientifique
2011-2020
Aix-Marseille Université
2014-2020
Délégation Provence et Corse
2017
Université Claude Bernard Lyon 1
2011-2014
Université de Montpellier
2012
Ingenierie des Materiaux polymeres
2012
École Nationale Supérieure de Chimie de Montpellier
2012
Optical spacers based on metal oxide layers have been intensively studied in poly(3‐hexylthiophene) (P3HT) polymer solar cells for optimizing light distribution inside the device, but to date, potential of such a spacer improve electronic performance simultaneously has not yet be investigated. Here, detailed study improvement high efficient by insertion solution‐processed ZnO optical using ethanolamine surface modification is reported. Insertion modified strongly improves even absence an...
The use of fullerene as acceptor limits the thermal stability organic solar cells at high temperatures their diffusion inside donor leads to phase separation via Ostwald ripening. Here it is reported that fully suppressed up 140 °C in bulk heterojunctions based on benzodithiophene‐based polymer (the poly[[4,8‐bis[(2‐ethylhexyl)oxy]‐benzo[1,2‐b:4,5‐b′]dithiophene‐2,6‐diyl][3‐fluoro‐2‐[(2‐ethylhexyl)carbonyl]‐thieno[3,4‐b]thiophenediyl]], (PTB7) combination with derivative...
The color of polymer solar cells using an opaque electrode is given by the reflected light, which depends on composition and thickness each layer device. Metal‐oxide‐based optical spacers are intensively studied in aiming to optimize light absorption. However, low conductivity materials such as ZnO TiO 2 limits tenths nanometers. A novel synthesis route cluster‐free Al‐doped (AZO) nanocrystals (NCs) presented for solution processing highly conductive layers without need temperature...
Atomistic simulations and experimental investigations are combined to study heterojunction interfaces of hybrid polymer solar cells, with the aim better understand precisely predict their photovoltaic properties. The focus is on a ternary model system based poly(3‐hexylthiophene) (P3HT)/zinc phthalocyanine (ZnPc)/ZnO interface, in which ZnPc interlayer applied improve performance interface. Theoretical predictions validated against properties concrete P3HT/ZnPc/ZnO planar device. theoretical...
The massive deployment of IoT connected devices brings up different modern problems, such as radiofrequency spectrum saturation and energetic requirements. Organic photovoltaics are good candidates for indoor energy harvesting data reception in a simultaneous lightwave information power transfer scenario applied IoT, at which the non-directive channel significantly contributes to optical system performance. However, achieving impulse response diffuse links requires complex numerical...
Organic solar cells based on two benzodithiophene-based polymers (PTB7 and PTB7-Th) processed at square centimeter-size under inert atmosphere ambient air, respectively, are investigated. It is demonstrated that the performance of not limited by upscaling photoactive layer interfacial layers. Thorough morphological electrical characterizations optimized layers corresponding devices reveal losses due to area enlargement only caused sheet resistance transparent electrode reducing efficiency...
Besides providing sufficient solubility, branched alkyl chains also affect the film-forming and packing properties of organic semiconductors.
Inkjet printing (IJP) of polymer solar cells is ideal for small‐area off‐grid electronics with low power consumption. However, IJP quite a complex technique compared techniques such as spin coating or doctor blading. The blends reported based on ITIC derivatives non‐fullerene acceptors (NFAs) using non‐halogenated solvents. results show that fluorination NFA essential to form highly stable inks in o‐xylene, because has significantly insufficient solubility ITIC‐4F. importance tetralin...
Thin film organic field-effect transistors were grown with vapor-deposited polycrystalline-octithiophene on silicon oxide insulating layers. This component requires an ohmic source and drain contacts for ideal operation. The performance of electronic-devices is often limited by injection. In many real situations, however specifically in devices, the injection charge carriers from metals into semiconductors non-linear. has adverse impact thin transistors, makes analysis electrical...
Photoactive hybrid films based on n type silicon nanowires [SiNWs] dispersed in poly(3-hexylthiophene) [P3HT], a p conjugated polymer known for its good ordering properties, have main interest the production of photovoltaic at limited cost. Silicon synthesized high yield by oxide assisted growth technique been tetrahydrofuran: THF, and mixed with P3HT solution THF to form blend inorganic-organic components appropriate proportions. The SiNWs deposited spin coating PEDOT-PSS/ITO substrates...
This work discusses the possibility of using printed organic photovoltaic cells in order to increase performance UHF RFID sensor tags. As a proof concept, an (OPV) cell was used power chip SL900A that incorporates front-end interface capable measuring voltages, currents, resistances, and capacitances. Several read range measurements were realized other types sources compared OPV. Results based on OPV showed significant enhancement tag (up 80%) under low light conditions which opens door for...
Organic-inorganic hybrid materials composed of bismuth and diaminopyridine are studied as novel for electron extraction layers in polymer solar cells using regular device structures. The solution processed on top two different low band gap polymers (PTB7 or PTB7-Th) donor mixed with fullerene PC70BM the acceptor. intercalation layer between photoactive aluminum cathode leads to a power conversion efficiency 7.8% because significant improvements all photovoltaic parameters, that is,...
Cathode interfacial layers, also called electron extraction layers (EELs), based on zinc oxide (ZnO) have been studied in polymer-blend solar cells toward optimization of the opto-electric properties. Bulk heterojunction poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl}) (PTB7) and [6,6]-phenyl-C71-butyric acid methyl ester (PC70BM) were realized regular structure with all-solution-processed interlayers. A...
The thermal stability of printed polymer solar cells at elevated temperatures needs to be improved achieve high-throughput fabrication including annealing steps as well long-term stability. During device processing, impacts both the organic photoactive layer, and two interfacial layers make detailed studies degradation mechanism delicate. A recently identified thermally stable...
The nanoscale morphology of polymer blends is a key parameter to reach high efficiency in bulk heterojunction solar cells. Thereby, research typically focusing on optimal blend morphologies while studying nonoptimized may give insight into designs that can prove more robust against defects. Here, we focus the direct correlation and device performance thieno[3,4-b]-thiophene-alt-benzodithiophene (PTB7):[6,6]phenyl C71 butyric acid methyl ester (PC71BM) (BHJ) processed without additives...