Listar FCA_Articles por título
-
Slow dynamic processes in lead halide perovskite solar cells. Characteristic times and hysteresis
American Chemical Society (2014-06)Characteristic times of perovskite solar cells (PSCs) have been measured by different techniques: transient photovoltage decay, transient photoluminescence, and impedance spectroscopy. A slow dynamic process is detected ... -
Solar Fuels. Photocatalytic Hydrogen Generation
American Chemical Society (2013)The necessity for developing clean energy technology has led to the surge in renewable energy research. A major effort is in discovering new approaches for producing transportable fuels. Hydrogen, which possesses the highest ... -
Solution-processed small molecule:fullerene bulk-heterojunction solar cells: impedance spectroscopy deduced bulk and interfacial limits to fill-factors
Royal Society of Chemistry (2013)Using impedance spectroscopy, we demonstrate that the low fill factor (FF) typically observed in small molecule solar cells is due to hindered carrier transport through the active layer and hindered charge transfer through ... -
Spatial-chirp compensation in dynamical holograms reconstructed with ultrafast lasers
American Institute of Physics (2008)A computer generated hologram (CGH) reconstructed with a sub-100-fs laser pulse at the focal plane of a conventional refractive lens experiences a large amount of spatial chirp. We report the shaping of a 12 fs laser pulsed ... -
Specific adsorption of trivalent cations in biological nanopores determines conductance dynamics and reverses ionic selectivity
Royal Society of Chemistry (2020-12-11)Adsorption processes are central to ionic transport in industrial and biological membrane systems. Multivalent cations modulate the conductive properties of nanofluidic devices through interactions with charged surfaces ... -
Spectral analysis of femtosecond pulse diffraction through binary diffractive optical elements: theory and experiment
Optical Society of America (2008)We report on the changes in the spectrum of a femtosecond pulse originated by diffraction of the ultrashort waveform through a circularly symmetric binary diffractive optical element. The analysis is performed in the ... -
Spectral broadening enhancement in silicon waveguides through pulse shaping
Optical Society of America (2012)Spectral broadening in silicon waveguides is usually inhibited at telecom wavelengths due to some adverse effects related to semiconductor dynamics, namely, two-photon and free-carrier absorption (FCA). In this Letter, our ... -
State of the Art and Prospects for Halide Perovskite Nanocrystals
American Chemical Society (2021-06-17)Metal-halide perovskites have rapidly emerged as one of the most promising materials of the 21st century, with many exciting properties and great potential for a broad range of applications, from photovoltaics to optoelectronics ... -
State-of-the-art and limitations in the life cycle assessment of ionic liquids
Elsevier (2019-01-19)Even though the development and use of ionic liquids (ILs) has rapidly grown in recent years, in the literature, information addressing the environmental performance of these substances in a life cycle context is comparatively ... -
Stochastic pumping of ions based on colored noise in bacterial channels under acidic stress
Royal Society of Chemistry (2016-06)Fluctuation-driven ion transport can be obtained in bacterial channels with the aid of different types of colored noise including the biologically relevant Lorentzian one. Using the electrochemical rectification of the ... -
Strong spatial dispersion in time-modulated dielectric media
American Physical Society (2020)We present an effective medium description of time-modulated dielectric media. By taking the averaged fields over one modulation period, the relationship between them is derived, therefore defining the different ... -
Structural and dielectric properties of cobaltacarborane composite polybenzimidazole membranes as solid polymer electrolytes at high temperature
Royal Society of Chemistry (2018)The conductivity of a series of composite membranes, based on polybenzimidazole (PBI) containing the metallacarborane salt M[Co(C2B9H11)2], M[COSANE] and tetraphenylborate, M[B(C6H5)4], M[TPB] both anions having the same ... -
Structural and Electrical Investigation of Cobalt-Doped NiOx/Perovskite Interface for Efficient Inverted Solar Cells
MDPI (2020-04-30)Inorganic hole-transporting materials (HTMs) for stable and cheap inverted perovskite-based solar cells are highly desired. In this context, NiOx, with low synthesis temperature, has been employed. However, the low ... -
Structural and electrochemical analysis of CIGS: Cr crystalline nanopowders and thin films deposited onto ITO substrates
MDPI (2021-04-23)A new approach for the synthesis of nanopowders and thin films of CuInGaSe2 (CIGS) chalcopyrite material doped with different amounts of Cr is presented. The chalcopyrite material CuInxGa1 − xSe2 was doped using Cr to form ... -
Structural and functional insights into the delivery of a bacterial Rhs pore-forming toxin to the membrane
Nature Research (2023-11-28)Bacterial competition is a significant driver of toxin polymorphism, which allows continual compensatory evolution between toxins and the resistance developed to overcome their activity. Bacterial Rearrangement hot spot ... -
Structural biology workflow for the expression and characterization of functional human sodium glucose transporter type 1 in Pichia pastoris
Nature Research (2019)Heterologous expression of human membrane proteins is a challenge in structural biology towards drug discovery. Here we report a complete expression and purification process of a functional human sodium/D-glucose co-transporter ... -
Structural characterization of bulk and nanoparticle lead halide perovskite thin films by (S)TEM techniques
IOP Publishing (2019)Lead halide (APbX3) perovskites, in polycrystalline thin films but also perovskite nanoparticles (NPs) has demonstrated excellent performance to implement a new generation of photovoltaic and photonic devices. The structural ... -
Structural diversity in the self-assembly of pseudopeptidic macrocycles
Wiley-VCH (2010)The self-assembling abilities of several pseudopeptidic macrocycles have been thoroughly studied both in the solid (SEM, TEM, FTIR) and in solution (NMR, UV, CD, FTIR) states. Detailed microscopy revealed large differences ... -
Substitution of a hydroxamic acid anchor into the MK-2 dye for enhanced photovoltaic performance and water stability in a DSSC
Royal Society of Chemistry (2014)An efficient synthetic protocol to functionalize the cyanoacrylic acid anchoring group of commercially available MK-2 dye with a highly water-stable hydroxamate anchoring group is described. Extensive characterization ... -
Superior Performance of V2O5 as Hole Selective Contact over other Transition Metal Oxides in Silicon Heterojunction Solar Cells
Elsevier (2017)Transition metal oxides (TMOs) have recently been proved to efficiently serve as hole-selective contacts in crystalline silicon (c-Si) heterojunction solar cells. In the present work, two TMO/c-Si heterojunctions are ...