A5054220111- Advanced Sensor and Energy Harvesting Materials
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Photonic Crystal and Fiber Optics
- Advanced Materials and Mechanics
- Photonic Crystals and Applications
- Optical Network Technologies
- Plasmonic and Surface Plasmon Research
- Metamaterials and Metasurfaces Applications
- Chalcogenide Semiconductor Thin Films
- Nanomaterials and Printing Technologies
- Quantum Dots Synthesis And Properties
- Optical Coatings and Gratings
- Analytical Chemistry and Sensors
- Surface Modification and Superhydrophobicity
- Tactile and Sensory Interactions
- Fluid Dynamics and Thin Films
- Adhesion, Friction, and Surface Interactions
- Conducting polymers and applications
- Liquid Crystal Research Advancements
- Advanced Optical Network Technologies
- Electrospun Nanofibers in Biomedical Applications
- Thin-Film Transistor Technologies
- Semiconductor materials and interfaces
École Polytechnique Fédérale de Lausanne
2015-2024
Surface du Verre et Interfaces
2012-2014
Saint-Gobain (France)
2012-2014
Massachusetts Institute of Technology
2004-2013
Institute for Soldier Nanotechnologies
2009-2013
Saint-Gobain Recherche Paris
2013
Centre National de la Recherche Scientifique
2012
Cambridge Electronics (United States)
2010-2012
Materials Science & Engineering
2011
University of Central Florida
2009
Abstract Fibers that harvest mechanical energy via the triboelectric effect are excellent candidates as power sources for wearable electronics and functional textiles. Thus far however, their fabrication remains complex, exhibited performances below state-of-the-art of 2D planar configurations, making them impractical. Here, we demonstrate scalable micro-structured stretchable fibers with efficiencies on par systems. We use thermal drawing process to fabricate advanced elastomer combine a...
Electronic devices are evolving from rigid into flexible and stretchable structures, enabling a seamless integration of electronics our everyday lives. The variety electronic materials within thermal-drawn fibers has emerged as versatile platform for the fabrication advanced functional fiber electronics. This approach exploits thermal drawing macroscopic preform, where or prefabricated arranged at prescribed position, yielding kilometers with sophisticated architecture complex...
The field of hybrid optical fibers is one the most active research areas in current fiber optics and has vision integrating sophisticated materials inside fibers, which are not traditionally used optics. Novel in‐fiber devices with unique properties have been developed, opening up new directions for fields critical interest modern research, such as biophotonics, environmental science, optoelectronics, metamaterials, remote sensing, medicine, or quantum Here recent progress reviewed from an...
Electronic and photonic fiber devices that can sustain large elastic deformation are becoming key components in a variety of fields ranging from healthcare to robotics wearable devices. The fabrication highly functional fibers remains however challenging, which is limiting their technological developments. Simple scalable fiber-processing techniques continuously codraw different materials within polymeric structure constitute an ideal platform realize Despite decades research however,...
The recent ability to integrate semiconductor-based optoelectronic functionalities within thin fibers is opening intriguing opportunities for flexible electronics and advanced textiles. scalable integration of high-quality semiconducting devices functional however remains a challenge. It difficult with current strategies combine high light absorption, good microstructure efficient electrical contact. growth nanowires great tool control crystal orientation ensure combination absorption charge...
Soft robots are envisioned as the next generation of safe biomedical devices in minimally invasive procedures. Yet, difficulty processing soft materials currently limits size, aspect-ratio, manufacturing throughput, well as, design complexity and hence capabilities robots. Multi-material thermal drawing is introduced a material platform to create robotic fibers imparted with multiple actuations sensing modalities. Several thermoplastic elastomeric options for presented, which all exhibit...
Abstract Magnetically responsive soft materials are promising building blocks for the next generation of robotics, prosthesis, surgical tools, and smart textiles. To date, however, fabrication highly integrated magnetic fibers with extreme aspect ratios, that can be used as steerable catheters, endoscopes, or within functional textiles remains challenging. Here, multimaterial thermal drawing is proposed a material processing platform to realize 10s meters long soft, ultrastretchable, yet...
A new all-in-fiber trace-level chemical sensing approach is demonstrated. Photoconductive structures, embedded directly into the fiber cladding along its entire length, capture light emitted anywhere within fiber's hollow core and transform it an electrical signal. Localized signal transduction circumvents problems associated with conventional fiber-optics, including limited collection efficiency optical losses. This facilitates a platform for remote distributed photosensing.
We report in this communication on structure property relations, specifically focusing geometric scaling and its effect the performance of one dimensional distributed photodetecting fibers. Envisioned applications include large area optoelectronic systems, remote sensing multifunctional fabrics.
The synthesis of a high-melting temperature semiconductor in low-temperature fiber drawing process is demonstrated, substantially expanding the set materials that can be incorporated into fibers. Reagents solid state are arranged proximate domains within preform. preform fluidized at elevated temperatures and drawn fiber, reducing lateral dimensions bringing intimate contact to enable chemical reaction. A polymer containing thin layer selenium contacted by tin–zinc wires yield electrically...
The controlled texturing of surfaces at the micro‐ and nanoscales is a powerful method for tailoring how materials interact with liquids, electromagnetic waves, or biological tissues. increasing scientific technological interest in advanced fibers fabrics has triggered strong motivation leveraging use textures on fiber surfaces. Thus far however, fiber‐processing techniques have exhibited an inherent limitation due to smoothing out surface by polymer reflow, restricting achievable feature...
Abstract Food engineering faces the difficult challenge of combining taste, i.e., tailoring texture and rheology food matrices with balanced intake healthy nutrients. In materials science, fiber suspensions composites have been developed as a versatile successful approach to tailor while imparting added functionalities. Structures based on such types physical (micro)fibers are however rare in production mainly due lack food‐grade processes allowing for fabrication fibers controlled sizes...
A robust power device for wearable technologies and soft electronics must feature good encapsulation, high deformability, reliable electrical outputs. Despite substantial progress in materials architectures two-dimensional (2D) planar configurations, fiber-based systems remain limited to relatively simple configurations low performance due challenges processing methods. Here, we extend complex 2D triboelectric nanogenerator 3D fiber formats based on scalable thermal of water-resistant...
Stretchable and conductive nanocomposites are emerging as important constituents of soft mechanical sensors for health monitoring, human-machine interactions, robotics. However, tuning the materials' properties sensor structures to targeted mode range stimulation is limited by current fabrication approaches, particularly in scalable polymer melt techniques. Here, thermoplastic elastomer-based engineered novel rheological requirements proposed their compatibility with fiber processing...