A5063960120- Luminescence Properties of Advanced Materials
- Lanthanide and Transition Metal Complexes
- Chemical Thermodynamics and Molecular Structure
- Luminescence and Fluorescent Materials
- Magnetism in coordination complexes
- Radioactive element chemistry and processing
- Organic Light-Emitting Diodes Research
- Chemical synthesis and pharmacological studies
- Catalysis and Oxidation Reactions
- Synthesis and Properties of Aromatic Compounds
- Glass properties and applications
- Carbon and Quantum Dots Applications
- Advanced Photocatalysis Techniques
- Synthesis and biological activity
- Research on Leishmaniasis Studies
- Atomic and Subatomic Physics Research
- Perovskite Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Pigment Synthesis and Properties
University of Aveiro
2025
Universidade Estadual Paulista (Unesp)
2021-2025
Exact Sciences (United States)
2025
Tuning the overall emission quantum yield ( ϕ LLn), dissymmetry factor g lum ), as well CPL brightness by changing electronic structure and microsymmetry of Eu III coordination polyhedron.
Despite significant ongoing efforts to develop luminescent rare‐earth β‐diketonate complexes, achieving thermal stability remains a persistent challenge. In this study, we present thermally stable organic‐inorganic hybrid (OIH) compound, SiCO‐[Eu(tta)3(H2O)2], where tta = thenoyltrifluoroacetonate, Si 3‐(triethoxysilyl)propyl isocyanate, and CO castor oil. Spectroscopic analysis reveals that while [Eu(tta)3(H2O)2] in its powder form undergoes irreversible photoluminescence quenching at 60 °C...
Understanding the dynamics of photophysical processes in Ln3+ complexes remains challenging due to intricate nature involving metallic center, where sensitization (antenna effect) plays a pivotal role. Current studies have often overlooked vibronic coupling within antenna effect, leading incomplete insights into excited-state dynamics. To address these shortcomings, we introduce novel theoretical and computational approach that leverages impact vibrational modes S1 T1 states this effect...
Leishmaniasis is a highly prevalent, yet neglected disease caused by protozoan parasites of the genus Leishmania. In search for newer, safer, and more effective antileishmanial compounds, we herein present study mode action in addition to detailed structural biological characterization LQOF-G6 [N-benzoyl-N'-benzyl-N″-(4-tertbutylphenyl)guanidine]. X-ray crystallography extensive NMR experiments revealed that nearly exclusively adopts Z conformation stabilized an intramolecular hydrogen bond....
Temperature measurements are crucial in numerous industries, spurring ongoing innovations sensing technology. Among the myriad techniques being explored, luminescence thermometry using lanthanide(III) (Ln III ) coordination polymers has garnered considerable interest....
Evaluating opto-structural correlations to tailor the luminescence of polymeric films based on Eu III -doped phosphors using a new combined spectroscopic and theoretical protocol.
Insights into 3 LC– 1,3 MLCT hybrid excited state mixture from spectroscopic and theoretical perspectives of deep-red-emitting Ir III complexes.
Herein, single-phase Eu3+-activated SrY2O4:Ce4+/3+ red-emitting phosphor was produced by an adapted Pechini route under softer synthesis conditions (1100 °C in CO reducing atmosphere) compared to those reported so far. A detailed structural study conducted Rietveld refinement and DFT calculations confirmed the presence of two hexa-coordinated Y3+ sites that are occupied Eu3+. Cerium is present a mixed oxidation state, where proportion Ce4+/Ce3+ determined as 70/30% X-ray photoelectron...