A5084765340- Transition Metal Oxide Nanomaterials
- Gas Sensing Nanomaterials and Sensors
- Conducting polymers and applications
- Pigment Synthesis and Properties
- Advanced Memory and Neural Computing
- ZnO doping and properties
- Perovskite Materials and Applications
- Polyoxometalates: Synthesis and Applications
- Catalysis and Oxidation Reactions
- Analytical Chemistry and Sensors
- Optical and Acousto-Optic Technologies
- Oxidative Organic Chemistry Reactions
Institut de Chimie de la Matière Condensée de Bordeaux
2021-2025
Université de Bordeaux
2021-2025
Institut Polytechnique de Bordeaux
2024-2025
Centre National de la Recherche Scientifique
2022-2025
Polytechnique Montréal
2024
The development of electrochromic systems, known for the modulation their optical properties under an applied voltage, depends on replacement state-of-the-art ITO (In2O3:Sn) transparent electrode (TE) as well improvement films. This study presents innovative ITO-free film architecture utilizing oxide-coated silver nanowire (AgNW) networks a TE and V2O5 oxide layer. was prepared by simple spray deposition AgNWs that allowed tuning different densities network hence resistance transparency...
Vanadium pentoxide (V2O5) attracts considerable attention in electrochromism due to its multicolor aspects and high ion storage capacity for the counter electrode. In this work, pure Fe-doped V2O5 films are deposited by radiofrequency magnetron co-sputtering. The influence of Fe doping on structural electrochemical properties V2O5-based thin is investigated. Thin containing up 7.8 atom % obtained without phase impurities. Although detrimental electrochromic properties, a proper amount about...
Despite the long-standing history of electrochromism, there is a lack universally accepted methods for quantitatively comparing cycling stability between different electrochromic materials or devices. By proposing straightforward three-step procedure, we report simple set parameters that describe performance most frequently used materials, namely, conducting polymers, transition metal oxides, metallo-supramolecular and viologens. The main highlights this procedure are an adequate definition...
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...
WO3 is the state of art electrochromic oxide materials finding technological application in smart windows. In this work, a set thin films were deposited by magnetron sputtering varying total pressure, oxygen partial and power. On each film two properties measured, electrochemical reversibility blue color persistence LixWO3 simulated ambient conditions. With help machine learning, prediction maps for such properties, namely, reversibility, designed. High-performance targeted global score...
Abstract The memory effect property, described as a reversible color persistence while the potential is withdrawn, of particular importance to reaching zero‐energy consumption electrochromic devices. Nevertheless, often observed in organic materials, it poorly studied oxides. In this study, tungsten oxide thin films are elaborated at different working pressures by radiofrequency magnetron sputtering. influence deposition pressure on electrochemical properties WO 3 well their investigated....
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...
Chromogenic materials exhibit tunable properties as a consequence of an external stimulus such light (photochromism), temperature (thermochromism) or potential (electrochromism..). Those smart compounds find applications in buildings and automobile industry by controlling heat transfer through windows for transmissive devices while colour changes reflective offer great interest the field displays printed electronics. Among various oxides, vanadium oxides plays peculiar role they adopt...
Color tuning remains one of the main issues for electrochromic applications. Multicolored organic and inorganic materials have been largely studied. In this study, a novel approach color modulation is investigated: electrolyte coloration. The therefore not due to but addressed thanks pigment addition in electrolyte, which allows endless possibilities. A symmetrical PEDOT:PSS based display WO3 V2O5 were elaborated order characterize coloration process. PEGDMA/PEGMA copolymer gel was processed...