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Photon Up-Conversion with Lanthanide-Doped Oxide Particles for Solar H2 Generation
(American Chemical Society, 2014-05)
Up-conversion (UC) of infrared (IR) photons into visible radiation constitutes a promising strategy to enhance the light harvesting efficiency of photovoltaic and photoelectrochemical devices. In the present study, we ...
Entropic restrictions control the electric conductance of superprotonic ionic solids
(Royal Society of Chemistry, 2020)
The crystallographic structure of solid electrolytes and other materials determines the protonic
conductivity in devices such as fuel cells, ionic-conductors, and supercapacitors. Experiments show that
a rise of the ...
Boosting Power Conversion Efficiencies of Quantum-Dot-Sensitized Solar Cells Beyond 8% by Recombination Control
(American Chemical Society, 2015)
At present, quantum-dot-sensitized solar cells (QDSCs) still exhibit moderate power conversion efficiency (with record efficiency of 6–7%), limited primarily by charge recombination. Therefore, suppressing recombination ...
A perspective on the production of dye-sensitized solar modules
(Royal Society of Chemistry, 2014)
Dye-sensitized solar cells (DSCs) are well researched globally due to their potential as low-cost photovoltaic (PV) devices especially suited for building and automobile integrated PV (BIPV, AIPV) and portable or indoor ...
Theory of Impedance and Capacitance Spectroscopy of Solar Cells with Dielectric Relaxation, Drift-Diffusion Transport, and Recombination
(American Chemical Society, 2014-07)
Semiconductor photovoltaic devices currently investigated, such as hybrid organic–inorganic lead halide perovskite based solar cells, have shown a high dielectric polarization combined with ambipolar carrier transport. In ...
Energy Diagram of Semiconductor/Electrolyte Junctions
(American Chemical Society, 2013-12)
In electrochemistry and photoelectrochemistry, it is most common to refer the voltage to a reference electrode (RE) or in a two-electrode cell with respect to a counterelectrode (CE).(1, 2) However, in a semiconductor film ...
Plasmonic versus catalytic effect of gold nanoparticles on mesoporous TiO2 electrodes for water splitting
(Elsevier, 2014-10)
Solar water splitting with metal oxide semiconductors constitutes a promising approach to the conversion of solar energy into chemical energy stored in the atomic bonds of hydrogen molecules. In the present study, we ...
On the different sources of cooperativity in pH titrating sites of a membrane protein channel
(EDP SciencesSocietà Italiana di FisicaSpringer-Verlag, 2016)
Cooperative interactions play a central role in the regulation of protein functions. Here we show that in multi-site systems like ion channels the application of the Hill formalism could require a combination of different ...
Selectivity of Protein Ion Channels and the Role of Buried Charges. Analytical Solutions, Numerical Calculations, and MD Simulations
(American Chemical Society, 2015-06)
The preference of large protein ion channels for cations or anions is mainly determined by the electrostatic interactions of mobile ions with charged residues of the protein. Here we discuss the widely spread paradigm that ...
Capacitive dark currents, hysteresis, and electrode polarization in lead halide perovskite solar cells
(American Chemical Society, 2015-04)
Despite spectacular advances in conversion efficiency of perovskite solar cell many aspects of its operating modes are still poorly understood. Capacitance constitutes a key parameter to explore which mechanisms control ...