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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 ...
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 ...
Porosity dependence of electron percolation in nanoporus TiO2 layers
(American Institute of Physics, 2008)
The electron diffusion coefficient at varying porosity has been determined in a series of
nanostructured TiO2 films of different initial thicknesses. The porosity was changed by applying
different pressures prior to ...
Formation Criteria of High Efficiency Perovskite Solar Cells in Ambient Conditions
(Royal Society of Chemistry, 2017)
The field of lead halide perovskites for solar cell applications has recently reported impressive power conversion (PCE) above 22 % using complex mixed cation formulations. Very importantly, highest PCE have been obtained ...
First-passage-time analysis of atomic-resolution simulations of the ionic transport in a bacterial porin
(American Physical Society, 2011-02-16)
We have studied the dynamics of chloride and potassium ions in the interior of the Outer membrane porin F (OmpF) under the influence of an external electric field. From the results of extensive all-atom molecular dynamics ...
Dilemmas of dye-sensitized solar cells
(Wiley-VCH Verlag Berlin, 2011)
Ferrocene to the rescue: The dye-sensitized solar cell allows changes in the energetics of electron transport, molecular absorbers, and hole transport materials to better harvest the energy of solar photons (see picture). ...
Origin of efficiency enhancement in Nb2O5 coated titanium dioxide nanorod based dye sensitized solar cells
(Royal Society of Chemistry, 2011-05-13)
Ordered one-dimensional metal oxides are considered promising architectures for dye-sensitized solar cells (DSC). Here we explore the properties determining the photovoltaic performance of DSC based on titanium dioxide ...
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 ...
Air-stable and efficient inorganic–organic heterojunction solar cells using PbS colloidal quantum dots co-capped by 1-dodecanethiol and oleic acid
(Royal Society of Chemistry, 2012)
PbS colloidal quantum dot (CQD)-sensitized inorganic–organic
heterojunction solar cells fabricated by using the PbS CQDs
co-capped by the oleic acid (OA) and 1-dodecanethiol (DT)
ligand showed better device stability ...
Poincaré-sphere representation of phase-mostly twisted nematic liquid crystal spatial light modulators
(Institute of Physics, 2009)
We establish necessary conditions in order to design a phase-only wave front modulation system from
a liquid crystal display. These conditions determine the dependence of the polarization state of the
light emerging from ...