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Probing Lithiation Kinetics of Carbon-Coated ZnFe2O4 Nanoparticle Battery Anodes
American Chemical Society (2014-03)The investigation of the lithiation-delithiation kinetics of anodes comprising carbon-coated ZnFe2O4 nanoparticles is reported in here. The study confirmed that, as occurring with other conversion electrodes, lithiation ... -
Probing Tubulin-Blocked State of VDAC by Varying Membrane Surface Charge
Biophysical Society (2012-05) -
Properties of Chromophores Determining Recombination at the TiO2–Dye–Electrolyte Interface
American Chemical Society (2013)Different classes of chromophores have been developed for the dye solar cell (DSC), including as the two main classes organometallic dyes, with Ru-based complexes and Zn-porphyrin complexes, and metal-free dyes. They result ... -
Properties of Contact and Bulk Impedances in Hybrid Lead Halide Perovskite Solar Cells Including Inductive Loop Elements
American Chemical Society (2016)Impedance spectroscopy offers access to all the different electronic and ionic processes taking place simultaneously in an operating solar cell. To date, its use on perovskite solar cells has been challenging because of ... -
Protein Ion Channels as Molecular Ratchets. Switchable Current Modulation in Outer Membrane Protein F Porin Induced by Millimolar La3+ Ions
American Chemical Society (2012)The quest for innovative tunable nanodevices has mainly focused on switches that modulate their properties through engineered conformational changes. We propose here an alternative route that takes advantage of the crucial ... -
Proton conductivity through polybenzimidazole composite membranes containing silica nanofiber mats
MDPI (2019-07-14)The quest for sustainable and more efficient energy-converting devices has been the focus of researchers′ efforts in the past decades. In this study, SiO2 nanofiber mats were fabricated through an electrospinning process ... -
Protonic Conduction of Partially-Substituted CsH2PO4 and the Applicability in Electrochemical Devices
MDPI (2019)CsH2PO4 is a proton conductor pertaining to the acid salts group and shows a phase transition from monoclinic to cubic phase at 232 ± 2 ◦C under high-steam atmospheres (>30%). This cubic phase gives rise to the so-called ... -
Quantification of charge carriers and acetate diffusion lengths in intermittent electro-active biofilms using Electrochemical Impedance Spectroscopy
Elsevier (2023-10-17)Intermittent anode potential regimes have been used to increase the concentration of charge carriers in electro-active biofilms (EABfs). Even though this increased number of carriers is typically correlated to higher current ... -
Quantification of charge carriers and acetate diffusion lengths in intermittent electro-active biofilms using Electrochemical Impedance Spectroscopy
Elsevier B.V. (2023-12-30)Intermittent anode potential regimes have been used to increase the concentration of charge carriers in electro-active biofilms (EABfs). Even though this increased number of carriers is typically correlated to higher current ... -
Quantum Dot Based Heterostructures for Unassisted Photoelectrochemical Hydrogen Generation
Wiley (2013-02)TiO2 hollow nanowires (HNWs) and nanoparticles (NPs) constitute promising architectures for QDs sensitized photoanodes for H2 generation. We sensitize these structures with CdS/CdSe quantum dots by two different methods ... -
Quatsomes: Vesicles Formed by Self-Assembly of Sterols and Quaternary Ammonium Surfactants
American Chemical Society (2013)Thermodynamically stable nanovesicle structures are of high interest for academia and industry in a wide variety of application fields, ranging from preparation of nanomaterials to nanomedicine. Here, we show the ability ... -
Random walk numerical simulation for hopping transport at finite carrier concentrations: diffusion coefficient and transport energy concept
Royal Society of Chemistry (2009)The random walk numerical simulation (RWNS) method is used to compute diffusion coefficients for hopping transport in a fully disordered medium at finite carrier concentrations. We use Miller–Abrahams jumping rates and ... -
Real-Time Observation of Iodide Ion Migration in Methylammonium Lead Halide Perovskites
Wiley (2017)Organic-inorganic metal-halide perovskites (e.g. CH3NH3PbI3-xClx) emerged as a promising opto-electronic material. However, the Shockley–Queisser Limit for the power conversion efficiency (PCE) of perovskite-based photovoltaic ... -
Recombination in Organic Bulk Heterojunction Solar Cells: Small Dependence of Interfacial Charge Transfer Kinetics on Fullerene Affinity
American Chemical Society (2012)We investigate the causes for obtaining higher open-circuit voltage in solar cells that use a fullerene with a smaller electron affinity. Using impedance spectroscopy technique, we show that the change of fullerene LUMO ... -
Recombination in Quantum Dot Sensitized Solar Cells
American Chemical Society (2009-11)Quantum dot sensitized solar cells (QDSCs) have attracted significant attention as promising third-generation photovoltaic devices. In the form of quantum dots (QDs), the semiconductor sensitizers have very useful and often ... -
Recombination rates in heterojunction silicon solar cells analyzed by impedance spectroscopy at forward bias and under illumination
Elsevier (2008)Impedance spectroscopy (at forward bias and under illumination) of solar cells comprised thin hydrogenated amorphous silicon (a-Si:H) films deposited on crystalline silicon (c-Si) wafers was analyzed in terms of ac equivalent ... -
Recombination reduction on lead halide perovskite solar cells based on low temperature synthesized hierarchical TiO2 nanorods
Royal Society of Chemistry (2016)Intensive research on the electron transport material (ETM) has been pursued to improve the efficiency of perovskite solar cells (PSCs) and decrease their cost. More importantly, the role of the ETM layer is not yet fully ... -
Reconfigurable RF-Waveform Generation Based on Incoherent-Filter Design
Institute of Electrical and Electronics Engineers (2008)Radio-frequency (RF) waveform generators are key devices for a variety of applications, including radar, ultra-wideband communications, and electronic test measurements. Following advances in broadband coherent pulsed ... -
Rectification properties and pH-dependent selectivity of meningococcal class 1 porin
(2008)We studied the current rectification properties and selectivity of class 1 porin (PorA) from Neisseria meningitidis (strain H44/76 A3A4) reconstituted in planar lipid membranes varying salt concentrations and pH. PorA ... -
Redox-active hierarchical assemblies of hybrid polyoxometalate nanostructures at carbon surfaces
Royal Society of Chemistry (2022-03-03)The self-assembly of hierarchical nanostructures on surfaces is a promising strategy for the development of a wide range of new technologies, such as energy-storage devices and sensors. In this work we show that amphiphilic, ...