Buscar
How the Charge-Neutrality Level of Interface States Controls Energy Level Alignment in Cathode Contacts of Organic Bulk-Heterojunction Solar Cells
(American Chemical Society, 2012-04)
Electronic equilibration at the metal–organic interface, leading to equalization of the Fermi levels, is a key process in organic optoelectronic devices. How the energy levels are set across the interface determines carrier ...
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 ...
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 ...
Electrochemical and Photoelectrochemical Investigation of Water Oxidation with Hematite Electrodes
(Royal Society of Chemistry, 2012-04)
Atomic layer deposition (ALD) was utilized to deposit uniform thin films of hematite (α-Fe2O3) on transparent conductive substrates for photocatalytic water oxidation studies. Comparison of the oxidation of water to the ...
Divalent Metal Ion Transport across Large Biological Ion Channels and Their Effect on Conductance and Selectivity
(Hindawi Publishing Corporation, 2012-07)
Electrophysiological characterization of large protein channels, usually displaying multi-ionic transport and weak ion selectivity, is commonly performed at physiological conditions (moderate gradients of KCl solutions at ...
Analysis of the Origin of Open Circuit Voltage in Dye Solar Cells
(American Chemical Society, 2012)
Changes in the composition of the electrolyte are known to affect the parameters that determine the performance of dye solar cells. This paper describes a robust method for the analysis of the photovoltage in dye solar ...
Equivalent Circuit of Electrons and Holes in Thin Semiconductor Films for Photoelectrochemical Water Splitting Applications
(American Chemical Society, 2012)
A simple model for the kinetics of electrons and holes in a thin semiconductor film in photoelectrochemical water splitting conditions is discussed, with a focus to discriminate between trap-assisted recombination and ...
Coronavirus E protein forms ion channels with functionally and structurally-involved membrane lipids
(Elsevier, 2012-10)
Coronavirus (CoV) envelope (E) protein ion channel activity was determined in channels formed in planar lipid bilayers by peptides representing either the transmembrane domain of severe acute respiratory syndrome CoV ...
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 ...
Multichannel Radio-Frequency Arbitrary Waveform Generation Based on Multiwavelength Comb Switching and 2-D Line-by-Line Pulse Shaping
(IEEE, 2012-06)
We demonstrate a multichannel time-multiplexed
radio-frequency arbitrary waveform generator. The system combines a switching scheme of multiwavelength optical frequency
combs with a novel 2-D line-by-line pulse shaper ...