A5072925911- Advanced Sensor and Energy Harvesting Materials
- Advanced Memory and Neural Computing
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Transition Metal Oxide Nanomaterials
- Graphene research and applications
- Nanomaterials and Printing Technologies
- Conducting polymers and applications
- Catalysis and Hydrodesulfurization Studies
- Supercapacitor Materials and Fabrication
- Catalytic Processes in Materials Science
- Additive Manufacturing and 3D Printing Technologies
- Thermal properties of materials
- Dielectric materials and actuators
- Chalcogenide Semiconductor Thin Films
- Thermal Radiation and Cooling Technologies
- CCD and CMOS Imaging Sensors
- Neuroscience and Neural Engineering
- Catalysts for Methane Reforming
- Advanced Thermoelectric Materials and Devices
- Quantum Dots Synthesis And Properties
- Copper-based nanomaterials and applications
University of Minho
2020-2024
International Iberian Nanotechnology Laboratory
2018-2019
Graphene (G) has been combined with carboxymethyl cellulose (C) for the development of environmentally friendly inks printed electronics applications. Water-based ink formulations have developed screen-printing graphene content up to 90 wt %. The patterns show a good distribution within matrix, allowing screen-printed pattern definition line thickness 200 μm. electrical percolation threshold is found be around 0.18 volume fraction, corresponding 1.9 % in composition. A maximum resistivity ρ...
Abstract Conductive graphene‐based inks can be tailored for functional applications and, in particular, printed electronics. Transparent, flexible, and easy printable materials are nowadays increasingly required sensing applications. In this context, a capacitive multitouch surface is developed using conductive graphene nanoparticles‐based ink with carboxymethyl cellulose as binder. The rheological properties of the to by screen‐printing technique. touchscreen based on lines columns thus...
Abstract Solution-based memristors deposited by inkjet printing technique have a strong technological potential based on their scalability, low cost, environmentally friendlier processing being an efficient with minimal material waste. Indium-gallium-zinc oxide (IGZO), semiconductor material, shows promising resistive switching properties. In this work, printed Ag/IGZO/ITO memristor has been fabricated. The IGZO thickness influences both memory window and voltage of the devices. devices show...
Abstract Industry 4.0 is accelerating the growth of connected devices, resulting in an exponential increase generated data. The current semiconductor technology facing challenges miniaturization and power consumption, demanding for more efficient computation where new materials devices need to be implemented. One most promising candidates next technological leap memristor. Due their up‐scale manufacturing, majority memristors employed conventional deposition techniques (physical chemical...
Chalcogenide semiconducting nanoparticles are promising building blocks for solution-processed fabrication of optoelectronic devices. In this work, we report a new large-scale colloidal synthesis metastable CuInSe2 with hexagonal plate-like morphology. Powder X-ray diffraction analysis the showed that structure is not simple wurtzite-type (space group P63mc), indicating formation an ordered superstructure. Detailed insight into structural aspect was explored by high-resolution electron...
Bottom-up fabrication of thermoelectric (TE) materials from colloidal nanocrystal (NC) building blocks can substantially increase their TE efficiency, for example, by reducing lattice thermal conductivity. In this work, 10 nm spherical phase-pure oleate-capped PbTe NCs with narrow size distribution were synthesized and employed to fabricate 50 thick films on insulating SiO2/Si substrates. The spin-coating, subsequent ligand exchange procedure, was applied enhance coupling interactions...
Flexible and conformable conductive composites have been developed using different polymers, including water-based polyvinylpyrrolidone (PVP), chemical-resistant polyvinylidene fluoride (PVDF), elastomeric styrene-ethylene-butylene-styrene (SEBS) reinforced with nitrogen-doped reduced graphene oxide suitable viscosity in for printable solutions functional properties. Manufactured by screen-printing low-toxicity solvents, leading to more environmentally friendly materials, the materials...
The development of polymer‐based conductive inks has gained increasing interest in the areas printed and molded electronics. Graphene‐based materials are explored this scope, reduced graphene oxide (rGO) being among most used filler components inks. Herein, rGO is doped with nitrogen to obtain N‐rGO; replacement oxygen atoms by ones increases electrical conductivity graphene. Polymer‐based reinforced developed based on polyvinylpyrrolidone (PVP) as polymer binder dihydrolevoglucosenone...
Printed Memristors As the world shifts towards Industry 4.0, growth of connected devices is accelerating, resulting in increased data generation. Miniaturization and power consumption challenges require efficient computation, with memristor being next technological leap. electronics have opened new avenues for low-temperature, low-cost processes material processing manufacturing. The review by Asal Kiazadeh, Senentxu Lanceros-Méndez, Emanuel Carlos, co-workers (see article number 2400212)...