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Enhanced conductivity of sodium versus lithium salts measured by impedance spectroscopy. Sodium cobaltacarboranes as electrolytes of choice
(Royal Society of Chemistry, 2017)
The development of new types of ion conducting materials is one of the most important challenges in
the field of energy. Lithium salt polymer electrolytes have been the most convenient, and thus the most
widely used in ...
Near-complete suppression of surface losses and total internal quantum efficiency in BiVO4 photoanodes
(Royal Society of Chemistry, 2017-05-26)
Bismuth vanadate (BiVO4) is one of the most efficient light absorbing metal oxides for solar water
splitting. BiVO4 photoanodes immersed in an electrolyte in an open circuit configuration and exposed to
simulated solar ...
Direct retrieval method of the effective permittivity and permeability of bulk semi-infinite metamaterials by variable-angle spectroscopic ellipsometry
(OSA Publishing, 2019)
In this work, we present a simple method for the direct retrieval of the effective
permittivity and permeability of a bulk semi-infinite metamaterial from variable-angle spectroscopic ellipsometry measurements. Starting ...
Effect of nanostructured electrode architecture and semiconductor deposition strategy on the photovoltaic performance of quantum dot sensitized solar cells
(Elsevier, 2012)
Here we analyze the effect of two relevant aspects related to cell preparation on quantum dot sensitized solar cells (QDSCs) performance: the architecture of the TiO2 nanostructured electrode and the growth method of quantum ...
Influence of solvent on the network structure formed by free radical polymerization of tri-ethylene glycol dimethacrylate: A dielectric study
(Elsevier, 2010)
Molecular mobility of a series of tri-ethylene glycol dimethacrylate (TrEGDMA) samples polymerized with different amounts of ethyl acetate up to 40% (w/w) as diluent was investigated by dielectric relaxation spectroscopy. ...
A variable series resistance mechanism to explain the negative capacitance observed in impedance spectroscopy measurements of nanostructured solar cells
(RSC Publishing, 2011-01-24)
A simple model for conductivity modulation in a recombination diode is discussed to explain the observation of negative capacitance at forward bias observed in many optoelectronic devices. We formulate the basic ...
Bright visible-infrared light emitting diodes based on hybrid halide perovskite with Spiro-OMeTAD as a hole-injecting layer
(American Chemical Society, 2015-05)
Hybrid halide perovskites that are currently intensively studied for photovoltaic applications, also present outstanding properties for light emission. Here, we report on the preparation of bright solid state light emitting ...
PEDOT nanotube arrays as high performing counter electrodes for dye sensitized solar cells: study of the interactions among electrolytes and counter electrodes
(Wiley, 2011-10)
PEDOT nanotube arrays present a better catalytic activity with I−/I3− redox than standard platinized counter electrodes used for dye sensitized solar cells exhibiting thereby a photoconversion efficiency as high as 8.3%. ...
Modeling and characterization of extremely thin absorber (eta) solar cells based on ZnO nanowires
(RSC Publishing, 2011-03-15)
Extremely thin absorber (eta)-solar cells based on ZnO nanowires sensitized with a thin layer of CdSe have been prepared, using CuSCN as hole transporting material. Samples with significantly different photovoltaic performance ...
Trap origin of field-dependent mobility of the carrier transport in organic layers
(Elsevier, 2011)
In the measurements of space-charge limited current (SCLC) transport in disordered organic semiconductors, it is often observed that carriermobility depends on bias voltage. Two continuous models have been applied for the ...