A5033983641- Graphene research and applications
- Radioactive element chemistry and processing
- Carbon Nanotubes in Composites
- Nuclear Physics and Applications
- Chemical Synthesis and Characterization
- Nuclear Materials and Properties
- Quantum Dots Synthesis And Properties
- Geological and Geochemical Analysis
- Thermal properties of materials
- Nuclear reactor physics and engineering
- Photonic Crystals and Applications
- Nuclear physics research studies
- Random lasers and scattering media
- Nuclear materials and radiation effects
- Inorganic and Organometallic Chemistry
- Chalcogenide Semiconductor Thin Films
- Gold and Silver Nanoparticles Synthesis and Applications
- Geochemistry and Geologic Mapping
- Diamond and Carbon-based Materials Research
- Nonlinear Optical Materials Studies
- Laser-induced spectroscopy and plasma
- earthquake and tectonic studies
- Glass properties and applications
- Laser-Ablation Synthesis of Nanoparticles
- High-pressure geophysics and materials
Universidade Federal de São Carlos
2021
Universidade Estadual de Campinas (UNICAMP)
2013-2020
Schmidt Institute of Physics of the Earth
2008-2018
Saint Petersburg State Electrotechnical University
2016
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
2015
Russian Academy of Sciences
2014
ITMO University
2010-2011
St Petersburg University
2011
Trinity College Dublin
2008-2010
Joint Institute for Nuclear Research
2003
Abstract In the last few years, research on dye-sensitised devices has been focused development of solar cells, based CH 3 NH PbX (X = I − , Br Cl ) composites with perovskite structure. The deposition thin films is usually carried out by solution-based processes using spin-coating techniques that result in production high quality films. Solar cells made this method exceed 20% efficiency, potential for use large scale through ink print or screen printing techniques. As an alternative route,...
Aqueous colloidal silver nanoparticles have substantial potential in biological application as markers and antibacterial agents surface-enhanced Raman spectroscopy applications. A simple method of fabrication encapsulation into an inert shell is great importance today to make their use ubiquitous. Here we show that colloids silver-core/silica-shell can be easily fabricated by a laser-ablation-assisted chemical reduction sizes tuned the range 2.5 6.3 nm simply choosing proper water-ethanol...
Graphene, in single layer or multi-layer forms, holds great promise for future electronics and high-temperature applications. Resistance to oxidation, an important property applications, has not yet been extensively investigated. Controlled thinning of graphene (MLG), e.g., by plasma laser processing is another challenge, since the existing methods produce non-uniform introduce undesirable defects basal plane. We report here that heating extremely high temperatures (exceeding 2000 K)...
The accuracy of thermal conductivity measurements by the micro-Raman technique for suspended multi-layer graphene flakes has been shown to depend critically on quality contacts between and metal electrodes used as heat sink. can be improved nonlocal laser annealing at increased power. improvement initially rough is attributed local melting surface under heating, area real metal–graphene contact. Improvement a silicon oxide was also observed, with more efficient transfer from compared...
Strongly enhanced light-matter coupling is reported in an ordered colloidal-photonic structure. Localization of light this three-dimensional system (true Anderson localization) demonstrated unambiguously providing compelling explanations for striking phenomenon.
There has been a growing interest in disordered optical media recent years due to their potential applications solar collectors, random lasers, light confinement, and other advanced photonic functions. This paper studies the transport of for different incidence angles strongly medium composed core-shell TiO2@Silica nanoparticles suspended an ethanol solution. A decrease conductance increase absorption near input border are reported when angle increases. The specular reflection, measured...
We report on the enhancement of electrical photoresponse in a hybrid structure composed multi-layer graphene flakes covered by layer CdSe/ZnS quantum dots (QDs) and placed between metal electrodes. The rate photoexcitation energy transfer from QDs to graphene, (0.5–2)×109 s−1 which controls photoelectrical response structure, was found analysis photoluminescence intensities decay times for solution, bare glass substrate surface multilayer presence ammonia vapors.
In recent years, there has been a dramatic progress in the photonics field of disordered media, ranging from applications solar collectors, photocatalyzers, random lasing, and other novel photonic devices, to investigations into fundamental topics, such as localization light phenomena involving photon interactions. Anderson is an open researcher frontier, which greatly attracted attention researchers past few decades. this work, we study transport strongly optical medium composed by...
In the last two decades, many experiments were conducted in self-organization of nanocrystals into two- and three-dimensional (3D) superlattices synthesized characterized by different techniques, revealing their unusual properties. Among all characterization X-ray diffraction (XRD) is one that has allowed confirmation 3D superlattice formation due to presence sharp intense peaks. this work, we study self-organized quantum dots PbS prepared dropping a monodispersed colloidal solution on glass...