A5086061512- Perovskite Materials and Applications
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Transition Metal Oxide Nanomaterials
- Conducting polymers and applications
- Pigment Synthesis and Properties
- Photonic Crystals and Applications
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Mesoporous Materials and Catalysis
- Solid-state spectroscopy and crystallography
- Chalcogenide Semiconductor Thin Films
- Analytical Chemistry and Sensors
- Iron oxide chemistry and applications
- Organic Electronics and Photovoltaics
- Copper-based nanomaterials and applications
- Additive Manufacturing and 3D Printing Technologies
- Anodic Oxide Films and Nanostructures
- Photonic and Optical Devices
- Polyoxometalates: Synthesis and Applications
- Fiber-reinforced polymer composites
- Advanced Cellulose Research Studies
- Mine drainage and remediation techniques
- Ga2O3 and related materials
University of Liège
2015-2025
Groupe de Recherche en Énergie Électrique de Nancy
2022
University of Waterloo
2018
Materials with broadband tunable optical properties are looked for in smart windows applications. Doped metal oxides presenting dual-band visible (VIS)–near-infrared (NIR) electrochromic can be used solving such a challenge, and their accurate characterization is therefore of prime importance. The Kubelka–Munk model state-of-the-art way to optically quantify the absorption materials occasionally applied plasmonic materials, even if great care should taken meet formalism hypotheses. In...
Lead‐free Cs 2 AgBiBr 6 double perovskite is considered a promising alternative photovoltaic absorber to the widely used lead halide due its easy processability, high stability, and reduced toxicity. Herein, for first time spray processing deposition of thin films reported. Microstructural (X‐ray diffraction, scanning electron microscopy) optoelectronic (absorbance, photoluminescence, photocurrent density versus applied voltage curves, electrochemical impedance spectroscopy) properties...
Mesoporous anatase thin films are very promising materials to act as electrode in dye-sensitized solar cell. Randomly oriented nanocrystalline TiO2 particles usually used prepare photoelectrodes with a thickness of 10–15 µm. Template-assisted dip-coating techniques obtain ordered porosity. However, monolayer prepared by from solution suffer low quantity active material limited surface area, leading poor photovoltaic performances. Therefore multilayer deposition process is needed increase the...
Abstract The energy efficiency of smart windows can be greatly improved by integrating dual‐band electrochromic materials based on nanostructured doped metal oxides, as these allow for the dynamic and independent control light heat supplies in buildings, respectively, related to transmitted visible (VIS) near‐infrared (NIR) solar radiations. Mixed molybdenum–tungsten oxides Mo y W 1− O 3− δ “MoWOx” are considered innovative compounds this context: comparison with parent WO formulations, a...
Sb2S3 chalcogenide stands out as low toxic, promising material for photovoltaic applications because of its unique optoelectronic properties such a suitable band gap (1.4-1.8 eV), high absorption coefficient...
Photonic structuration is an efficient way to improve light harvesting in multiple optoelectronic applications. In this study, photonically structured TiO2 considered as a photoanode layer for perovskite solar cells enhance absorption through the excitation of quasi-guided modes within photoactive material, while optimizing charge collection photovoltaic assembly and therefore its global efficiency. Practically, polystyrene beads various diameters are used hard templating sacrificial agents...
In this study, we report the synthesis of Ti-doped mesoporous hematite films by soft-templating for application as photoanodes in photoelectrolysis water (water splitting). Because activation dopant requires a heat treatment at high temperature (≥800 °C), it usually results collapse mesostructure. We have overcome obstacle using temporary SiO2 scaffold to hinder crystallite growth and thereby maintain mesoporosity. The beneficial effect activated has been confirmed comparing photocurrent...
Cs 2 AgBiBr 6 double perovskite compounds are increasingly studied in recent years as promising candidates able to counter polluting, harmful, and oxygen‐/moisture‐sensitive issues intrinsic traditional lead‐containing solar cells. Exhibiting high optical absorption coefficient, low toxicity, important structural stability, cells still suffer from limited of low‐energy photons, carrier mobility, lifetimes induced by defect states. Herein, for the first time, a molecular layer tetracene is...
Light management is an important area of photovoltaic research, but little known about it in perovskite solar cells. The present work numerically studies the positive effect structuring photo-active layer material. This structuration consists a hybrid absorbing made uniform part and opal-like part. A genetic algorithm approach allows us to determine optimal combination among more than 1.4 × 10 9 potential combinations. provides internal quantum efficiency 98.1%, nearly 2% higher for...
Light management strategies using photonic crystals have been proven to efficiently improve light harvesting and subsequently conversion efficiency of various optoelectronic devices. This study focuses on 3D inverse opal CH3NH3PbI3 photoanodes in perovskite solar cells from a combined numerical experimental approach. Varying the pore size layer thickness simulations, we first determined theoretical optimum purely optical point view. Corresponding nanostructures were then fabricated through...
With the purpose of achieving highly stable and efficient polymer electrolytes for dye-sensitized solar cell (DSSC) applications, a series new poly(ionic liquids) (PILs), namely, poly(1-N-methylimidazolium-pentylpolydimethylsiloxane)iodide, with different ratios pentylimidazolium iodide moieties, have been studied employed to prepare solid-state DSSCs. PILs were further mixed two types ionic liquids (ILs), 1-methyl-3-propylimidazolium (MPII) bis(trifluoromethylsulfonyl)imide (MPITFSI),...
Perovskite solar cells have shown a tremendous interest for photovoltaics since the past decade. However, little is known on influence of light management using photonic crystals inside such structures. We present here numerical simulations showing effect crystal structuring integrated quantum efficiency perovskite cells. The photo-active layer made an opal-like structure (monolayer, bilayer or trilayer spheres) built in TiO2 matrix. Fano resonances are exploited order to enhance absorption,...
Energy efficiency of smart windows can be greatly improved by integrating dual-band electrochromic materials based on nanostructured doped metal oxides, as these will allow for a dynamic and independent control light heat supplies in buildings respectively related to transmitted visible (VIS) near-infrared (NIR) solar radiations. Mixed molybdenum – tungsten oxides MoyW1-yO3-δ “MoWOx” are considered innovative compounds this context: comparison with parent WO3-δ formulations, remarkable...