A5055659138- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Dielectric materials and actuators
- Graphene research and applications
- 2D Materials and Applications
- Multiferroics and related materials
- Advanced Memory and Neural Computing
- Ferroelectric and Negative Capacitance Devices
- Innovative Energy Harvesting Technologies
- Advanced biosensing and bioanalysis techniques
- Supercapacitor Materials and Fabrication
- Eurasian Exchange Networks
- Ferroelectric and Piezoelectric Materials
- Advanced Chemical Sensor Technologies
- Magnetic and transport properties of perovskites and related materials
- Nanowire Synthesis and Applications
- Analytical Chemistry and Sensors
- Microstructure and Mechanical Properties of Steels
- Advanced Materials and Mechanics
- High Entropy Alloys Studies
- Welding Techniques and Residual Stresses
- Nanopore and Nanochannel Transport Studies
- Reservoir Engineering and Simulation Methods
- Perovskite Materials and Applications
- Ultrasound and Hyperthermia Applications
Max Planck Institute for Polymer Research
2018-2024
University of British Columbia
2024
University of Bath
2022
University of Tehran
2015-2022
University of Applied Sciences Mainz
2020
Yazd University
2014-2015
National Iranian Oil Company (Iran)
2013
Abstract Electronic textiles and functional fabrics are among the key constituents envisioned for wearable electronics applications. For e‐textiles, challenge is to process materials of desired electronic properties such as piezoelectricity into fibers be integrated wefts or wraps in fabrics. Nylons, first introduced 1940s stockings, most widely used synthetic textiles. However, realization nylon‐based e‐textiles has remained elusive due difficulty achieving piezoelectric phase nylon fibers....
Hierarchically porous piezoelectric polymer nanofibers are prepared through precise control over the thermodynamics and kinetics of liquid-liquid phase separation nonsolvent (water) in poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) solution. Hierarchy is achieved by fabricating fibers with pores only on surface fiber, or inside fiber a closed surface, that homogeneously distributed both volume nanofiber. For fabrication hierarchically nanofibers, guidelines formulated. A detailed...
Energy harvesting devices have emerged as an auspicious sustainable energy source for low-power electronics, where delivering electricity using conventional means is not feasible nor desirable. This clear technological impact has drawn huge attention and driven research into materials devices. Reports are often published, even in high-caliber journals claiming high-efficiency However, these typically based on poorly defined or undefined metrics lack the details needed re-evaluation comparing...
Abstract The seamless integration of electronics with biology requires new bio‐inspired approaches that, analogously to nature, rely on the presence electrolytes for signal multiplexing. On contrary, conventional multiplexing schemes mostly electronic carriers and require peripheral circuitry their implementation, which imposes severe limitations toward adoption in bio‐applications. Here, a iontronic multiplexer based spatiotemporal dynamics organic electrochemical transistors (OECTs), an...
Experimental realization of thin films with a significant room-temperature magnetoelectric coupling coefficient, αME, in the absence an external DC magnetic field, has been thus far elusive. Here, large coefficient 750 ± 30 mV Oe–1 cm–1 is reported for multiferroic polymer nanocomposites (MPCs) thin-films field. The MPCs are based on PMMA-grafted cobalt-ferrite nanoparticles uniformly dispersed piezoelectric poly(vinylidene fluoride-co-trifluoroethylene, P(VDF-TrFE). It shown that...
Despite the great progress of ferroelectric gated field-effect transistors (Fe-FETs) based on graphene and other 2D materials, a device model that accurately describes hysteretic transfer characteristics provides guidelines performance enhancement Fe-FET is still lacking. Here, we present an experimentally validated analytical couples charge displacement layer with transport in layer. The Fe-FETs good accuracy predicts on/off ratio determined by Dirac bias carrier mobility. unsuitability...
Abstract Layered metal chalcogenide materials are exceptionally appealing in optoelectronic devices thanks to their extraordinary optical properties. Recently, application as flexible and wearable photodetectors have received a lot of attention. Herein, broadband high-performance paper-based PDs were established very facile inexpensive method by rubbing molybdenum disulfide titanium trisulfide crystals on papers. Transferred layers characterized SEM, EDX mapping, Raman analyses, properties...
Abstract Piezoelectric poly(vinylidene fluoride) (PVDF) nanowires are of particular interest for energy harvesting as they ultra‐sensitive to small vibrations. Here, a new, cost‐effective, and scalable approach producing PVDF with strongly enhanced power output is presented. The method combines template‐wetting in cylindrical nano‐confinement anisotropic solvent‐nonsolvent phase inversion yield fully novel nanowire morphology consisting “sausage‐like” strings nano‐domains. Dynamic numerical...
Abstract Piezoelectric polymers have emerged as promising materials for application in pressure sensing devices particular wearable applications, where inorganic piezoelectric can face limitations due to their brittleness. One of the bottlenecks adaptation is relatively weak voltage coefficient. Hence there been numerous efforts improve performance comprising by making composites poly(vinylidene fluoride) (PVDF), or through porous PVDF films, nanostructuring. Here, we demonstrate fabrication...
Abstract Two terminal devices that exhibit resistance switching in response to an external voltage are interesting for neuromorphic computing applications. Owing its simple device structure, a crossbar array of two‐terminal is highly desired application as artificial neural network weights. Here, ferroelectric diodes show their forward bias presented. The can be set high‐ and low‐resistance state or any between these limits. It demonstrated the function synapse. An with two bit row lines (2...
Polymeric nanocomposite thin films of magnetic nanoparticles blended with the ferroelectric polymer poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) are promising candidates for multiferroic applications. To date, only thick-film nanocomposites have been reported. Fabrication along study ferroic properties nanoparticle loading is crucial realization functional devices. However, systematic studies, and in particular dynamic polarization switching a solid understanding...
Ultra-smooth thin-films of nylons, one the most successful commercialized polymers, have been realized for application in ferroelectric field effect transistors.
For most people, the first step in treatment is to take out tumor (surgery), so precise and fast diagnosis of any sign high-risk neoplastic cells, especially surgical cavity margins, significant. The frozen pathology method conventional standard intraoperative diagnosis, but low number slides prepared from non-fixed tissues prevents us achieving a perfect diagnosis. Although many improvements margin detection were achieved, still real-time lesions crucial improving diagnostic quality....
Abstract Porosity has been experimentally employed to enhance the power output of piezoelectric energy harvesters. However, porosity lowers breakdown voltage layer and hampers pre‐poling piezoelectric, which is needed achieve enhanced performance. Furthermore, effect fractional pore size on poling conditions comprising harvesters not yet known. Here, through finite‐element method simulations, it shown that performance porous independent distribution pores only depends porosity. Moreover,...
Enhanced oil recovery methods are used to recover the percents of oil, which not naturally recoverable from reservoirs. Water injection, as a secondary recovery, is maintain pressure in water-drive An important point for having successful injection compatibility and formation waters. This article presents predicting calcium carbonate precipitation water, mixing water with at different pressures. The experimentally measured chemical analyses were by OLI ScaleChem software determine amount...
Abstract Conventional memory elements code information in the Boolean “0” and “1” form. Devices that exceed bistability their resistance are useful as for future data storage due to enhanced capacity, also a necessity contemporary applications such neuromorphic computing. Here, with aid of an experimentally validated device model, design rules outlined more than two stable states graphene ferroelectric field‐effect transistor demonstrated. The methodology can be extrapolated on‐demand...
Abstract Background Cancer diagnostic probe (CDP) had been developed to detect involved breast cavity side margins in real‐time (Miripour et al. Bioeng Transl Med. e10236.). Here, we presented the results of vivo human model CDP studies on non‐neoadjuvant cases. Methods This study is a prospective, blind comparison gold standard, and medical group recruited patients. frozen data were achieved before permanent pathology experiment. The main outcome surgical margin status. From November 2018...