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Panchromatic sensitized solar cells based on metal sulfide quantum dots grown directly on nanostructured TiO2 electrodes
American Chemical Society (2011-02)The use of narrow band gap semiconductors such as PbS may expand the light absorption range to the near-infrared region in quantum-dot-sensitized solar cells (QDSCs), increasing the generated photocurrent. However, the ... -
Panchromatic Solar-to-H2 Conversion by a Hybrid Quantum Dots-Dye Dual Absorber Tandem Device
American Chemical Society (2014-01)Solution-processed mesoscopic oxide semiconductor-based materials offer potentially low-cost and high stability alternative for next generation of water to hydrogen conversion photoelectrochemical cells (PEC). In the present ... -
Partial coverage methylammonium lead bromide films for solar cell application
Elsevier (2019-11-30)Hybrid perovskite compounds as methylammonium lead halides are currently been investigated for different optoelectronic applications. CH3NH3PbBr3 is a promising member because of its electronic structure and large bandgap ... -
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%. ... -
PEG Equilibrium Partitioning in the α-Hemolysin Channel: Neutral Polymer Interaction with Channel Charges
American Chemical Society (2021-02-08)We study the interaction of neutral polyethylene glycol (PEG) molecules of different molecular weights (MWs) with the charged residues of the α-hemolysin channel secreted by Staphylococcus aureus. Previously reported ... -
Pencil graphite rods decorated with nickel and nickel-iron as low-cost oxygen evolution reaction electrodes
Royal Society of Chemistry (2021)Society is demanding clean energy to substitute greatly polluting carbon-based fuels. As an alternative, the use of green hydrogen produced by electrocatalysis constitutes a nice strategy as its products and reactants are ... -
Perimeter leakage current in polymer light emitting diodes
Elsevier (2009)Observation of leakage current paths through the device perimeter in standard poly(phenylene vinylene)-based light-emitting devices is reported. Perimeter leakage currents govern the diode performance in reverse and low ... -
Perovskite solar cells: a brief introduction and some remarks
Sociedad Cubana de Física (2017)The spectacular and unprecedented rise of so-called perovskite solar cells (PSCs) in conversion efficiency with low-cost manufacturing processes has grabbed the attention of the scientific community ... -
Phase calibration of spatial light modulators by means of Fresnel images
Institute of Physics (2009)Reliable application of spatial light modulators (SLMs) as programmable diffractive optical elements requires a thorough calibration. In this paper, we propose a method for calibrating SLMs based on the evaluation of ... -
Photoanodes Based on Nanostructured WO3 for Water Splitting
Wiley (2012-08)Anodically grown WO3 photoelectrodes prepared in an N-methylformamide (NMF) electrolyte have been investigated with the aim of exploring the effects induced by anodization time and water concentration in the electrochemical ... -
Photocurrent enhancement in dye-sensitized photovoltaic devices with titania–graphene composite electrodes
Elsevier (2012)Photovoltaic performance of dye-sensitized solar cell (DSC) devices based on a new titania–graphene paste has been investigated using Impedance Spectroscopy (IS) technique. The results provide key information about device ... -
Photoelectrochemical and Impedance Spectroscopic Investigation of Water Oxidation with “Co–Pi”-Coated Hematite Electrodes
American Chemical Society (2012)Uniform thin films of hematite (α-Fe2O3) deposited by atomic layer deposition (ALD) coated with varying amounts of the cobalt phosphate catalyst, “Co–Pi,” were investigated with steady-state and transient photoelectrochemical ... -
Photoelectrochemical water splitting with dual-photoelectrode tandem and parallel configurations: Enhancing light harvesting and carrier collection efficiencies
Elsevier (2023)Photoelectrochemical (PEC) water splitting stands out as one of the most promising technologies to store solar energy into chemical bonds and decarbonize industry and transport. In the present study, we develop ... -
Photoinduced Giant Dielectric Constant in Lead Halide Perovskite Solar Cells
American Chemical Society (2014-06)Organic-inorganic lead trihalide perovskites have emerged as an outstanding photovoltaic material that demonstrated a high 17.9% conversion efficiency of sunlight to electricity in a short time. We have found a giant ... -
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 ... -
Photovoltaic efficiency limits and material disorder
Royal Society of Chemistry (2012)Solar cells based on crystalline semiconductors such as Si and GaAs provide nowadays the highest performance, but photovoltaic (PV) cells based on less pure materials, such as poly- or nano-crystalline or amorphous inorganic ... -
Physical aspects of ferroelectric semiconductors for photovoltaic solar energy conversion
Elsevier (2016-10)Solar energy conversion using semiconductors to fabricate photovoltaic devices relies on efficient light absorption, charge separation of electron–hole pair carriers or excitons, and fast transport and charge extraction ... -
Physical electrochemistry of nanostructured devices
Royal Society of Chemistry (2008)This Perspective reviews recent developments in experimental techniques and conceptual methods applied to the electrochemical properties of metal-oxide semiconductor nanostructures and organic conductors, such as those ... -
Plasmon-enhanced photocurrent in quasi-solid-state dye-sensitized solar cells by the inclusion of gold/silica core–shell nanoparticles in a TiO2 photoanode
Royal Society of Chemistry (2013-09)Direct evidence of the effects of the localized surface plasmon resonance (LSPR) of gold nanoparticles (Au NPs) in TiO2 photoanodes on the performance enhancement in quasi-solid-state dye-sensitized solar cells (DSCs) is ... -
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 ...