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Inorganic Surface Engineering to Enhance Perovskite Solar Cell Efficiency
American Chemical Society (2017-03-29)The photoconversion efficiency of perovskite solar cells (PSCs) is enhanced by the deposition of inorganic nanoparticles (NPs) at the interface between the compact TiO2 electron-selective contact and the mesoporous TiO2 ... -
Insights on the permeability of wide protein channels: measurement and interpretation of ion selectivity
Royal Society of Chemistry (2012-10-11)Ion channels are hollow proteins that have evolved to exhibit discrimination between charged solutes. This property, known as ion selectivity is critical for several biological functions. By using the bacterial porin OmpF ... -
Intensity-Modulated Photocurrent Spectroscopy and Its Application to Perovskite Solar Cells
American Chemical Society (2020-09-23)Frequency domain techniques are useful tools to characterize processes occurring on different time scales in solar cells and solar fuel devices. Intensity-modulated photocurrent spectroscopy (IMPS) is one such technique ... -
Interface inductive currents and carrier injection in hybrid perovskite single crystals
AIP Publishing (2017-10)nterfaces between the absorbing perovskite and transporting layers are gaining attention as the key locus that governs solar cell operation and long term performance. The interplay of ionic and electronic processes, along ... -
Interfacial band-edge energetics for solar fuels production
Royal Society of Chemistry (2015)Photoelectrochemical (PEC) water splitting has received growing attention as a potential pathway to replace fossil fuels and produce a clean, renewable, and sustainable source of fuel. To achieve overall water splitting ... -
Interfacial effects on dielectric properties of ethylene propylene rubber–titania nano- and micro-composites
Springer Verlag (2015)The influence of titania particle size on dielectric properties of ethylene–propylene rubber (EPR) composites was investigated, with an emphasis on the chain dynamics in the interphase region. We hypothesized that a reduction ... -
Interfacial effects on dielectric properties of polymethylmethacrylate-titania microcomposites and nanocomposites
Wiley (2015)It is discussed that dielectric properties of polymethylmethacrylate (PMMA) composites are influenced by the particle size of titania as a result of changes in the structure and dynamics of polymer chains in the ... -
Interfacial Effects on Dielectric Propertiesof Polymethylmethacrylate-TitaniaMicrocomposites and Nanocomposites
Wiley (2017)It is discussed that dielectric properties of polymethylmethacrylate (PMMA) composites are influenced by the particle size of titania as a result of changes in the structure and dynamics of polymer chains in the interphase ... -
Interfacial engineering of quantum dot-sensitized TiO2 fibrous electrodes for futuristic photoanodes in photovoltaic applications
Royal Society of Chemistry (2012)Herein we report generic surface treatment approaches to improve the electronic interfaces of quantum dot-sensitized TiO2 fiber electrodes, thereby promoting their photoanode performance. Highly dense, continuous and ... -
Interfacial Mechanism for Efficient Resistive Switching in Ruddlesden-Popper Perovskites for Non-volatile Memories
American Chemical Society (2020-01-16)Ion migration, one origin of current–voltage hysteresis, is the bane of halide perovskite optoelectronics. Herein, we leverage this unwelcome trait to unlock new opportunities for resistive switching using layered ... -
Interplay Between Fullerene Surface Coverage and Contact Selectivity of Cathode Interfaces in Organic Solar Cells
ACS Publications (2013-04)Interfaces play a determining role in establishing the degree of carrier selectivity at outer contacts in organic solar cells. Considering that the bulk heterojunction consists of a blend of electron donor and acceptor ... -
Interplay of host volume variations and internal distortions in the course of intercalation into disordered matrices
(2007)Based on a combination of the distortive lattice gas model and the maximum information entropy approach, the thermodynamics of insertion into disordered hosts is analyzed. It is found that the isotherm specificities can ... -
Interplay of Optical, Morphological, and Electronic Effects of ZnO Optical Spacers in Highly Efficient Polymer Solar Cells
Wiley (2014-12-29)Optical spacers based on metal oxide layers have been intensively studied in poly(3-hexylthiophene) (P3HT) based polymer solar cells for optimizing light distribution inside the device, but to date, the potential of such ... -
Interpretation of cyclic voltammetry measurements of thin semiconductor films for solar fuel applications
American Chemical Society (2013)A simple model is proposed that allows interpretation of the cyclic voltammetry diagrams obtained experimentally for photoactive semiconductors with surface states or catalysts used for fuel production from sunlight. When ... -
Interpretation of Diffusion and Recombination in Nanostructured and Energy-Disordered Materials by Stochastic Quasiequilibrium Simulation
American Chemical Society (2013)The main electronic feature of many nanocrystalline semiconductors and I organic materials is the presence of a distribution of localized states in the system with a broad energy dispersion. Carrier transport and recombination ... -
Interpretation of diffusion coefficients in nanostructured materials from random walk numerical simulation
Royal Society of Chemistry (2008)We make use of the numerical simulation random walk (RWNS) method to compute the ‘‘jump’’ diffusion coefficient of electrons in nanostructured materials via mean-square displacement. First, a summary of analytical results ... -
Interpretation of electron diffusion coefficient in organic and inorganic semiconductors with broad distributions of states
Royal Society of Chemistry (2008)The carrier transport properties in nanocrystalline semiconductors and organic materials play a key role for modern organic/inorganic devices such as dye-sensitized (DSC) and organic solar cells, organic and hybrid ... -
Interpretation of trap-limited mobility in space-charge limited current in organic layers with exponential density of traps.
© American Institute of Physics (2011-08)Charge carrier transport in disordered organic semiconductors, performed in electronic devices such as optoelectronic and photovoltaic ones, is usually affected by an exponential distribution of localized states in the ... -
Inverted Solution Processable OLEDs Using a Metal Oxide as an Electron Injection Contact
Wiley-Blackwell (2008)A new type of bottom-emission electroluminescent device is described in which a metal oxide is used as the electron-injecting contact. The preparation of such a device is simple. It consists of the deposition of a thin ... -
Inverted vs Standard PTB7:PC70BM Organic Photovoltaic Devices. The benefit of highly selective and extracting contacts in device performance
Elsevier (2014)In this work we compare the photovoltaic performance of different cell designs, standard and inverted, for one of the most promising systems to achieve power conversion efficiencies over 10% in polymer:fullerene single ...