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Estudio de la transición de fase metal-semiconductor en dióxido de vanadio
(2015)
In this thesis we made a study about the Metal-Insulator phase transition with the
purpose to determine, particularly, the parameters to play a important rol in the
transition. For this we made a study of theories or ...
Chalcogenide based (CuInS2/ZnS, CuInSe2/ZnSe) core/shell quantum dots for photodynamic therapy
(2015)
Strong luminescent CuInX2/ZnX (X=S,Se) core/shell quantum dots were synthesized by a novel nontoxic and inexpensive organometallic method in two simple steps of CuInS2 and CuInSe2 core formation and ZnS and ZnSe shell over ...
Síntesis y caracterización de CuIn (1-x) Ga(x) Se2 y sus propiedades fotovoltaicas
(2018-05)
In this work we have studied materials suitable to be used as an absorbing layer in thin-film solar cells. Photovoltaic materials based in CuIn (1-x) Ga(x) Se2 (CIGS) are now conventionally used the solar panel industry. ...
Analytical approximations for parabolic curved beams
(2018)
Analytical approximations for the tangential and radial degrees of freedom for curved beams were
found by restricting the rotation of the curved beam. Results showed that only the restriction in
the rotational degree of ...
Tuning of multifunctional properties of undoped and doped BiFeO3
(2018)
This work studied the effect of the incorporation of Co2+ and Mn2+ species on the structural and magnetic properties of nanocrystalline powders of BiFeO3 (BFO) synthesized by the sol-gel and thermal treatment method at ...
Characterization of sensors for CMS Phase II forward pixel detector
(2018)
The HL-LHC conditions of instantaneous peak luminosities up to 7.5*10^34 cm ^-2 s^-1 and an integrated luminosity of the order of 300fb^-1 would result in 1 MeV neutron equivalent fluence of 2.3 * 10^16 neq/cm^2and a total ...
Effect of the incorporation of defects in ZnO nanocrystals on the generation of reactive oxygen species for applications in photodynamic therapy
(2015)
Photodynamic therapy (PDT) is an alternative to traditional cancer treatments. This
approach involves the use of photosensitizer (PS) agents and their interaction with light. As
a consequence, cytotoxic reactive oxygen ...
Fabrication and characterization of VO2 thin films using pulsed DC magnetron sputtering
(2015)
Vanadium dioxide (VO2) is one of the many oxide phases of vanadium, which exhibits a semiconducting monoclinic stable phase up to 68°C. At temperatures over ~68°C the stable phase for VO2 is tetragonal and exhibits metallic ...
Material para catodo con alta energia para baterias recargables en ion-litio
(2018)
Particles consisting of sulfur and carbon were synthesized and structurally characterized by means of X-Ray Diffraction and a scanning electron microscope. The results show a trigonal crystal structure with the sulfur ...
Fabrication of VO2 (B) thin films by pulsed DC reactive magnetron sputtering and characterization at low and high temperatures
(2018)
For this work, VO2 (B) thin films were fabricated using pulsed DC magnetron reactive sputtering. The technique belongs to the ionic sputtering methods which allows high deposition rates, high-purity films, excellent ...