A5040658732- Gold and Silver Nanoparticles Synthesis and Applications
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Plasmonic and Surface Plasmon Research
- Nonlinear Optical Materials Studies
- Laser-Ablation Synthesis of Nanoparticles
- Laser Material Processing Techniques
- Laser-induced spectroscopy and plasma
- Quantum Dots Synthesis And Properties
- Copper-based nanomaterials and applications
- Photonic Crystals and Applications
- Thermal Radiation and Cooling Technologies
- nanoparticles nucleation surface interactions
- Basque language and culture studies
- Chalcogenide Semiconductor Thin Films
- Optical and Acousto-Optic Technologies
- Nanomaterials and Printing Technologies
- Thermography and Photoacoustic Techniques
- Ion-surface interactions and analysis
- Green IT and Sustainability
- Supercapacitor Materials and Fabrication
- Diamond and Carbon-based Materials Research
- Metamaterials and Metasurfaces Applications
- Optical Wireless Communication Technologies
Centre for Electrochemical Technologies
2023-2024
Cidete (Spain)
2024
Digital Research Alliance of Canada
2023
CIC energiGUNE
2020-2022
Instituto de Óptica "Daza de Valdés"
2011-2018
Laboratoire Hubert Curien
2016
Consejo Superior de Investigaciones Científicas
2011-2015
The abundance of the available sodium sources has led to rapid progress in sodium-ion batteries (SIBs), making them potential candidates for immediate replacement lithium-ion (LIBs). However, commercialization SIBs been hampered by their fading efficiency due consumed formation solid–electrolyte interphase (SEI) when using hard carbon (HC) anodes. Herein, Na2C3O5 salt is introduced as a highly efficient, cost-effective, and safe cathode sodiation additive. This sustainable an oxidation ∼4.0...
This work reports the study of ion dynamics produced by ablation Al, Cu, Ag, Au, and Bi targets using nanosecond laser pulses at 193 nm as a function fluence from threshold up to 15 J cm−2. An electrical (Langmuir) probe has been used for determining yield well kinetic energy distributions. The results clearly evidence that Al shows unique features when compared other metals. both (except which two-threshold-like behavior) fixed above scale approximately with melting temperature metal....
We compare the morphology and optical response of plasmonic nanostructures produced by pulsed laser deposition, consisting a 2D distribution Ag nanoparticles exposed to air or buried under an amorphous Al2O3 layer whose thickness is tuned in 0.5 14 nm range. observe that covering process leads drastic changes content, which are interpreted terms sputtering atoms promoted incoming Al ions. This avoided as soon embedded subnanometer-thick Al2O3. Meanwhile, spectral position nanoparticles'...
Introducing a small dose of an electrolyte additive into solid polymer electrolytes (SPEs) is appealing strategy for improving the quality solid-electrolyte-interphase (SEI) layer formed on lithium metal (Li°) anode, thereby extending cycling life solid-state batteries (SSLMBs). In this work, we report new type SPEs comprising low-cost, fluorine-free salt, tricyanomethanide, as main conducting salt and fluorinated bis(fluorosulfonyl)imide (LiFSI), enhancing performance SPE-based SSLMBs. Our...
The substitution of an organic liquid electrolyte with lithium-conducting solid materials is a promising approach to overcome the limitations associated conventional lithium-ion batteries. These constraints include reduced electrochemical stability window, high toxicity, flammability, and formation lithium dendrites. In this way, all-solid-state batteries present themselves as ideal candidates for improving energy density, environmental friendliness, safety. particular, configurations allow...
Abstract Li‐ion batteries are attracting an increasing attention due to the process of electrification involving different industrial sectors. Many efforts dedicated improving battery performance in terms cyclability, capacity, fast charging and safety name a few. Therefore, it is primal importance identify understand degradation modes that stay behind cell failure. In this sense, Loss Lithium Inventory (LLI) Active Material (LAM) considered fundamental indicators for estimating state health...
We demonstrate that the broad surface plasmon resonance (SPR) of a single layer near-coalescence silver nanoparticles (NPs), embedded in dielectric matrix can be tailored by irradiation with nanosecond laser pulse into distribution featuring sharp at 435 nm. Scanning electron microscopy studies reveal underlying mechanism to transformation well-separated spherical particles. Additional exposure multiple femtosecond pulses 400 nm or 800 wavelength induces polarization anisotropy SPR, peak...
We demonstrate that 2D distributions of non-spherical near-coalescence silver nanoparticles (NPs) embedded in an ultrathin dielectric film can be reorganized, shaped and aligned by exposure to ultrashort laser pulses. As-grown samples prepared pulsed deposition show a broad absorption band with surface plasmon resonance (SPR) at 650 nm, which blue-shifted down 440 nm transformed polarization anisotropy. In situ white light probing the spectral sample transmission allows control during...
Lithium nickel oxide (LNO) is an attractive positive electrode active material for lithium ion batteries (LIBs) due to its high reversible specific capacity and absence of cobalt. Nevertheless, it prone structural instabilities that lead rapid fading, safety concerns shows in average a lower voltage than mixtures with cobalt, limiting applicability date. Herein we introduce the sulfur-based electrolyte additive, benzo[d][1,3,2]dioxathiole 2,2-dioxide (DTDPh), stabilize LNO study effects on...
Abstract Sensing devices for environment, safety, healthcare, and optoelectronic applications require an accurate noninvasive monitoring of their temperature, because its variations markedly affect the overall response device. Monitoring optical temperature‐sensitive integrated photonic elements, such as microresonators or microinterferometers, is appealing solution in this context. However, achieving high‐resolution thermometry with elements unpractical costly requires lithography...
The effect of a single layer Ag nanoparticles (NPs) embedded in amorphous Al2O3 grown on Cu(In,Ga)Se2 (CIGSe) thin film solar cells is analyzed. CIGSe films with Cu/(In+Ga)= 0.62-0.81 atomic ratios are used as absorber layers. NPs mean diameters ≈2 nm and Surface Plasmon Resonance close to 400 were deposited by pulsed laser deposition (PLD) top the cell. An efficiency 15.9% achieved for hybrid NPs-CIGSe cells, that obtained best reference cell without metallic NPs. These results suggest PLD...
One of the main challenges in plasmonics is to conceive large-scale, low-cost techniques suitable for fabrication metal nanoparticle patterns showing precise spatial organization. Here, we introduce a simple method based on continuous-wave laser illumination induce self-organization silver nanoparticles within high-index thin films. We show that highly regular and homogeneous gratings can be produced large areas using laser-controlled processes. This very versatile technique provide 1D 2D at...
Cobalt-free spinel LiNi0.5Mn1.5O4 is one of the most promising and environmentally friendly cathodes, based on its high specific theoretical capacity (147 mAh·g-1) electrochemical potential (4.7 V vs Li+/Li), as well good electronic Li-ion conductivities. In this work, we present fabrication thin-film cathodes deposited by industrially scalable AC magnetron sputtering technique functional cost-effective stainless steel current collectors. This first step toward battery downscaling,...
Nanostructures consisting on Ag nanoparticle (NP) arrays produced by pulsed laser deposition in vacuum and having different morphology are tested as substrates for surface enhanced Raman spectroscopy (SERS) of terphenyl diisocyanide (TPDI). The SERS response strongly depends the NP size distribution; its intensity being much stronger case nanostructures containing small NPs with typical range a few tens nm characteristic interparticle spacing nm. This behavior is related to existence...
Abstract Industrial‐oriented mid‐frequency alternating current (MF‐AC) magnetron sputtering technique is used to fabricate LiNi 0.5 Mn 1.5 O 4 high‐voltage thin‐film cathodes. Films are deposited on bare stainless‐steel substrate at room temperature and then annealed induce crystallization in disordered spinel phase. In situ X‐ray diffraction follow film structural evolution from 900 °C. Scanning electron microscopy, photoelectron spectroscopy, Raman spectroscopy study the with of...
Abstract Lithium nickel oxide (LNO) is an attractive positive electrode active material for lithium ion batteries (LIBs) due to its high reversible specific capacity and absence of cobalt. Nevertheless, it prone structural instabilities that lead rapid fading, safety concerns shows in average a lower voltage than mixtures with cobalt, limiting applicability date. Herein this study introduces the sulfur‐based electrolyte additive, benzo[ d ][1,3,2]dioxathiole 2,2‐dioxide (DTDPh), stabilize...
The ever-growing demand for lithium-ion batteries (LIBs) and especially the requirements of high energy densities necessitates development advanced battery materials in order to make electro mobility renewable feasible concepts a broad application society. However, modern electrode active that promise come with numerous challenges need be overcome before they can applied commercials batteries. LiNiO 2 (LNO) has drawn attention as possible cathode material due its specific capacity absence...