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Twi Ltd., Centexbel, Brunel University, Bonar N.V., Centitvc Center For Nanotechnology And Smart Materials, LINDSTRAND TECHNOLOGIES Ltd, Ohmatex ApS, Sefar AG, VdS Weaving N.V., Peerless Plastics and Coatings Ltd | Date: 2017-05-17

A wire shaped coaxial photovoltaic solar cell comprising: a conductive core wire shaped support (401), a nanostructured semiconductor scaffold layer (402), one or more successive perovskite layers (403), an optionally provided hole transporting material layer (404), an outer conductor layer (405), an outer protective layer (406), characterized in that said outer conductor layer (405) comprises dispersed nanoparticles and said perovskite layers (403) are composed identically or wherein two or more of said layers have a different molecular structure and/or composition. The invention also relates to methods and apparatus for the fabrication of said wire shaped coaxial photovoltaic solar cell.

Heyse P.,Centexbel | Buyle G.,Centexbel | Walendy B.,Karlsruhe Institute of Technology | Beccarelli P.,Maco Technology Srl | And 3 more authors.
Procedia Engineering | Year: 2015

The overall objective of the MULTITEXCO project is to scientifically and technologically characterize the latest achievements within the technical textile sector for the development of Guidelines and Pre-normative research, enabling future standards at EU level. These will support the SMEs involved in the construction sector to fully exploit the new generation of multifunctional technical textiles. MULTITEXCO is focusing on key developments in smart textiles for 1/ roadwork and embankments, 2/ structure retrofitting and 3/ fabrics for tensile structures. For each field of application a demonstrator is exemplifying the use and reliability of novel, smart multifunctional fabrics for the construction sector. In this contribution we will show examples for all three application areas, such as for example the use of textile integrated sensors for tensile architecture applications, sensor embedded soil reinforcing fabrics and meshes for masonry retrofitting. © 2015 The Authors. Published by Elsevier Ltd.

De Jonckheere J.,French Institute of Health and Medical Research | Jeanne M.,French Institute of Health and Medical Research | Narbonneau F.,MULTITEL | Witt J.,BAM | And 4 more authors.
2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 | Year: 2010

The potential benefit of optical fiber sensors embedded into medical textiles for the continuous monitoring of patients for MRI is presented. We report a monitoring system based on the use of two novel nonintrusive optical sensing technologies designed to measure the elongation due to abdominal and thoracic motions during breathing. The developed system can successfully sense textile elongation between 0.1% and 5%, while maintaining the stretching properties of the textile substrates for a good comfort of the patient. The solution prototyped shows a high stability and good reproducibility. The sensors are coupled to a compact, real time and accurate monitoring system. © 2010 IEEE.

Musschoot J.,Ghent University | Dendooven J.,Ghent University | Deduytsche D.,Ghent University | Haemers J.,Ghent University | And 2 more authors.
Surface and Coatings Technology | Year: 2012

Alumina was deposited on a non-woven polyester fiber substrate using both thermal and plasma enhanced atomic layer deposition (ALD). The textile was confined inside a one dimensional test structure. The coverage of the ALD film on the nonwoven as a function of depth in the test structure was determined by energy dispersive X-ray spectroscopy (EDX). A model is introduced which links the precursor transport in the nonwoven (transmission, reflection and deposition) with the nonwoven properties (density, fiber surface area, density of surface sites). The experimental results are compared to simulations of the coverage profile. It is shown that longer precursor exposure times result in deposition deeper inside the nonwoven. However, the majority of precursor molecules entering the nonwoven leave the test structure without contributing to film growth. ALD from TMA and oxygen plasma had a very limited penetration into the nonwoven because of radical recombination. This effect is relevant for plasma treatment of fibrous materials in general. © 2012 Elsevier B.V.

Narbonneau F.,MULTITEL | De Jonckheere J.,French Institute of Health and Medical Research | Jeanne M.,French Institute of Health and Medical Research | Kinet D.,MULTITEL | And 7 more authors.
Progress in Biomedical Optics and Imaging - Proceedings of SPIE | Year: 2010

The potential impact of optical fiber sensors embedded into medical textiles for the continuous monitoring of the patient during Magnetic Resonance Imaging (MRI) is now proved. We report how two pure optical technologies can successfully sense textile elongation between, 0% and 3%, while maintaining the stretching properties of the textile substrates for a good comfort of the patient. Investigating influence of different patients' morphology as well as textile integration issues to let free all vitals organs for medical staff actions, the OFSETH harness allows a continuous measurement of respiration movements. For example, anaesthesia for MRI examination uses the same drugs as for any surgical procedure. Even if spontaneous respiration can be preserved most of the time, spontaneous respiration is constantly at risk of being impaired by anaesthetic drugs or by upper airway obstruction. Monitoring of the breathing activity is needed to assess adequate ventilation or to detect specific obstruction patterns. Moreover artefacts due to physiological motions induce a blooming effect on the MRI result. The use of synchronisation devices allows reducing these effects. Positioned at certain strategic places according to the investigated organ, the presented sensors could constitute an efficient and adapted solution for respiratory synchronisation of the MRI acquisition. ©2010 SPIE.

Heyse P.,Centexbel | Buyle G.,Centexbel | Beccarelli P.,Maco Technology Srl
Procedia Engineering | Year: 2016

In recent years, the textile industry developed a new generation of advanced textile materials for the construction sector designed to address the needs of one of the largest markets for textile products. Examples of the advanced textiles developed include fabrics for the rehabilitation of buildings, geotextiles for the consolidation of a wide range of soil structures and the high performance technical textiles for tensile structures. When combine with innovative sensors the fabrics provide an useful tool for the constant monitoring of the structures and can be used to record the mechanical performance or detect anomalies in the expected use of the structures by measuring applied loads, deformations, operating temperatures or other important parameters. This work highlights recent advances in sensor embedded textiles for structural health monitoring of tensile structures. Attention is paid on ease of application, integration in the textile and the use of established and relatively low cost sensing methodologies. The real innovation lies therefore in transferring these methods to unexplored technological fields for smart textiles such as tensile structures. © 2016 The Author(s).

Buyle G.,Centexbel
Technische Textilien | Year: 2010

Guy Buyle focuses on the basics of plasma treatment and its use on textiles. The European project Acteco aimed at developing a new generation of plasma technologies that offer dramatically innovative functional surface properties with a lifetime equal to the finished product in the domains of food packaging, biomedical applications, and textiles. The interaction of the active species in the plasma with the substrate can either lead to adding something to the substrate or to removing something from the substrate. Surface activation refers to the temporal increase of the surface energy. Such a treatment enhances the substrate affinity for other substances and is especially needed for synthetic materials which typically have a low intrinsic surface energy. The basic building blocks of textile materials are individual fibers or filaments and, as a result, the surface area to be treated is much larger for a textile substrate than for a flat film.

Haeske M.,RWTH Aachen | Wendland B.,RWTH Aachen | Van Der Schueren L.,Centexbel | Gloy Y.-S.,RWTH Aachen | Gries T.,RWTH Aachen
16th European Conference on Composite Materials, ECCM 2014 | Year: 2014

The advantages of 3D interlock fabric composites are known to lie mainly in the increased impact resistance and reduced crack propagation. On the other hand, in-plane properties like modulus, strength and fatigue are reduced by the increased amount of yarn crimp in 3D fabrics. Other disadvantages of 3D interlock weaves are poor impregnation performance and low production speeds. In this research project "Multi-NonCrimp", it is shown that multilayer 3D interlock weaves with minimal warp and weft crimp can be produced on full width weaving looms with much greater production speed than conventional 3D weaving. Weaves with different warp, weft and pile yarn densities are impregnated and mechanically characterized by 3-point flexural and bending after impact tests. Results show good impact resistance, but limited bending strength due to incomplete impregnation. Further work will be carried out to optimize weaving pattern and impregnation methods for 3D textile reinforced composites.

Kristof S.,Centexbel
Industrie Textile | Year: 2010

Sot-gel technology is largely being used on textiles for the protection of optical lenses (against scratches), the protection of buildings (against moisture and graffiti), the production of ceramic powders, optical fibers, aerogels and super insulating products. The main metals used are Titanium, Silicon and Aluminum although there are other possibilities for specific applications. The production of sol-gel coatings can be split into two stages namely, the production of sol and the production of gel. The use of a catalyst aimed at accelerating the solidification of coatings can be used to apply sol-gels at temperatures from 120 °C. Application on textiles is done by padding or spraying as these are aqueous solutions with low viscosity. The main applications are aimed at enhancing resistance to abrasion while improving the water-proofing and oil-repellent effects.

Witt J.,BAM Federal Institute of Materials Research and Testing | Narbonneau F.,Multitel | Schukar M.,BAM Federal Institute of Materials Research and Testing | Krebber K.,BAM Federal Institute of Materials Research and Testing | And 9 more authors.
IEEE Sensors Journal | Year: 2012

For patients under Magnetic Resonance Imaging (MRI) spontaneous respiration is constantly at risk of being impaired by anesthetic drugs or by upper airway obstruction. Therefore, continuous monitoring of the breathing activity is needed to assess adequate ventilation or to detect specific obstruction patterns. The paper describes three MRI compatible respiration sensors based on pure optical technologies developed within the EU FP6 project OFSETH. The sensors are based on fiber Bragg gratings, optical time-domain reflectometry and macrobending effects. The developed smart medical textiles can sense elongation up to 3% while maintaining the stretching properties of the textile substrates for patient's comfort. The OFSETH harness allows a continuous measurement of abdominal and thoracic respiration movement while all vitals organs are free for medical staff actions. The sensors were tested in MRI environment and on healthy adults. © 2006 IEEE.

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