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Mostrando ítems 11-20 de 106
Oxidation Induced Doping of Nanoparticles Revealed by in Situ X-ray Absorption Studies
(American Chemical Society, 2016-05)
Doping is a well-known approach to modulate the electronic and optical properties of nanoparticles (NPs). However, doping at nanoscale is still very challenging, and the reasons for that are not well understood. We studied ...
A Luminescent Steroid-based Organogel: ON-OFF Photoswitching by Dopant Interplay and Templated Synthesis of Fluorescent Nanoparticles
(Royal Society of Chemistry, 2012-09)
The modulation of the fluorescence emission of a perylene dye between ON and OFF states was achieved with high efficiency by means of a diarylethene photochromic compound in an organogel medium. Fluorescent gels were ...
Theoretical study of the modification of the oxide-reducing capacity of titania from selected dopant elements
(Springer, 2020-01-28)
The positions of the upper edge of the valence band and the lower edge of the conduction band of semiconducting materials such as TiO2 are closely related to the values of the respective oxidation or reduction potentials. ...
Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
(Royal Society of Chemistry, 2017-12)
The reusability, non-volatility and non-corrosiveness of ionic liquids (ILs), as well as their ease of isolation and a large electrochemical stability window, make them an interesting choice as environmentally friendly ...
Influence of Nb5+ and Sb3+ dopants on the defect profile, PTCR effect and GBBL characteristics of BaTiO3 ceramics
(Elsevier, 2004-07)
In this work, a study of the electrical properties and defect structure of PTCR (positive temperature coefficient of resistance) and GBBL (grain boundary barrier layer) BaTiO3-based ceramics was performed. For this study, ...
Estudio de procesos de transferencia de energía en materiales orgánicos nanoestructuradosStudy of energy transfer processes innanostructured organic materials
(2019-03-20)
Los polímeros conjugados (PC) son materiales orgánicos semiconductores de gran relevancia debido a su aplicación en dispositivos electrónicos orgánicos tales como celdas solares, diodos emisores de luz, transistores de ...
Surfactant and dopant addition effect on optical and structural properties of ZnSe (Te) nanostructured semiconductors
(Elsevier Science SA, 2020-07)
ZnSe and ZnTe nanoparticles were obtained by mechanical milling. The influence of surfactant and doping agent addition on structural and optical properties were analyzed. X-ray diffraction (XRD) confirmed cubic crystalline ...