Listar INAM_Articles por fecha de publicación
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Distinction between capacitive and noncapacitive hysteretic currents in operation and degradation of perovskite solar cells
American Chemical Society (2016)Perovskite solar cells suffer from significant performance distortions under working conditions, usually known by the generic label of hysteretic effects. A classification of the fluctuations associated with current–voltage ... -
Study of the catalytic activity of 3D macroporous Ni and NiMo cathodes for hydrogen production by alkaline water electrolysis
Springer Verlag (2016)Platinum is the electrode material with the highest catalytic activity for the hydrogen evolution reaction (HER). However, its high cost and scarcity are the two major barriers for its usage in the industrial alkaline water ... -
Polyaromatic N-heterocyclic carbene ligands and π-stacking. Catalytic consequences
Royal Society of Chemistry (2016-04)In the course of our most recent research, we demonstrated how homogeneous catalysts with polyaromatic functionalities possess properties that clearly differ from those shown by analogues lacking these polyaromatic ... -
Cooperative Catalytic Effect of ZrO2 and a-Fe2O3 Nanoparticles on BiVO4 Photoanodes for Enhanced Photoelectrochemical Water Splitting
Wiley (2016-09)Photoelectrochemical water splitting with metal oxide semiconductors offers a cost-competitive alternative for the generation of solar fuels. Most of the materials studied so far suffer from poor charge-transfer kinetics ... -
Electropolymerized polyaniline: A promising hole selective contact in organic photoelectrochemical cells
Elsevier (2016-11)In the present study, we have prepared Polyaniline (PANI) thin films by electrochemical polymerization on ITO substrates in acidic medium at room temperature. We have followed a systematic modification of both the precursor ... -
A D3h-symmetry hexaazatriphenylene-tris-N-heterocyclic carbene ligand and its coordination to iridium and gold: preliminary catalytic studies
Royal Society of Chemistry (2017)A new D3h-symmetry tris-N-heterocyclic carbene ligand has been prepared and coordinated to iridium and gold. The ligand contains an electron-poor hexaazatriphenylene core; thus, the resulting tris-NHC ligand is a poor ... -
Gold Catalysts with Polyaromatic-NHC ligands. Enhancement of Activity by Addition of Pyrene
American Chemical Society (2017)Three Au(I) complexes with N-heterocyclic carbene ligands fused to polycyclic aromatic hydrocarbons (pyrene and phenanthrophenazine) have been obtained and fully characterized. The complexes were tested as catalysts in ... -
Changes from Bulk to Surface Recombination Mechanisms between Pristine and Cycled Perovskite Solar Cells
American Chemical Society (2017)Several aspects on the photophysical characterization of lead halide hybrid organic–inorganic perovskite solar cells remain unsolved. It has been observed that ionic transport and polarization of the interfaces cause very ... -
Transformation of PbI2, PbBr2 and PbCl2 salts into MAPbBr3 perovskite by halide exchange as an effective method for recombination reduction
Royal Society of Chemistry (2017)Halide perovskite derivatives present unprecedented physical phenomena among those materials which are suitable for photovoltaics, such as a fast ion diffusion coefficient. In this paper it is reported how the benefits ... -
Stability of dye-sensitized solar cells under extended thermal stress
Royal Society of Chemistry (2017)In the last few decades, dye-sensitized solar cell (DSC) technology has been demonstrated to be a promising candidate for low cost energy production due to cost-effective materials and fabrication processes. Arguably, DSC ... -
Device performance and light characteristics stability of quantum-dot-based white-light-emitting diodes
Springer Verlag (2017)Advances in image quality in recent decades have made it necessary to develop new technologies for producing displays to meet remarkably stricter standards. The display market is governed mainly by liquid crystal display ... -
Hydrazine sensors development based on a glassy carbon electrode modified with a nanostructured TiO2 films by electrochemical approach
Springer Verlag (2017)The authors describe a selective hydrazine sensor that is based on the use of a film of TiO2 nanoparticles faceted predominantly at the 101 and 001 sides. The hydrazine (Hyd) sensor was fabricated by depositing the ... -
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 ... -
Gold(I) Metallo‐Tweezers for the Recognition of Functionalized Polycyclic Aromatic Hydrocarbons by Combined π–π Stacking and H‐Bonding
Wiley (2017)Two gold(I)‐based metallo‐tweezers with bis(Au−NHC) pincers and a carbazole connector have been obtained and used for the recognition of polycyclic aromatic hydrocarbons (PAHs). In the case of the tweezer with pyrene–NHC ... -
Solar Energy Storage by a Heterostructured BiVO4–PbOx Photocapacitive Device
American Chemical Society (2017)The development of solar energy storage strategies is a key step for handling the inherent variability of sunlight within a global solar-based energy model. In the present study, we have developed a photocapacitive device ... -
Photovoltage Behavior in Perovskite Solar Cells under Light-Soaking Showing Photoinduced Interfacial Changes
American Chemical Society (2017)The photovoltage of perovskite solar cells (PSCs) was studied over a wide range of light intensities, showing changes from pristine to light-soaking (LS) conditions, explained using a specific model of spatial charge ... -
Nickel-Cornered Molecular Rectangles as Polycyclic Aromatic Hydrocarbon Receptors
Wiley (2017)Two nickel-cornered organometallic metalla-rectangles containing a pyrene-linked-di-N-heterocyclic carbene have been prepared. The dimensions of one side of the rectangle were modulated by either using pyrazine or ... -
Guanidinium thiocyanate selective Ostwald ripening induced large grain for high performance perovskite solar cells
Elsevier (2017)Organic-inorganic lead halide perovskite has become one of the most attractive materials for future low-cost high-efficiency solar technology. However, the polycrystalline nature of perovskite thin-film often possesses ... -
Lead-Free Perovskite Solar Cells
American Chemical Society (2017) -
Deleterious Effect of Negative Capacitance on the Performance of Halide Perovskite Solar Cells
American Chemical Society (2017)Negative capacitance in photovoltaic devices has been observed and reported in several cases, but its origin, at low or intermediate frequencies, is under debate. Here we unambiguously demonstrate a direct correlation ...