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Low-temperature processed electron collection layers of graphene/TiO 2 nanocomposites in thin film perovskite solar cells
(American Chemical Society, 2014)
The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, applications ...
General Working Principles of CH3NH3PbX3 Perovskite Solar Cells
(American Chemical Society, 2014)
Organometal halide perovskite-based solar cells have recently realized large conversion efficiency over 15% showing great promise for a new large scale cost-competitive photovoltaic technology. Using impedance spectroscopy ...
Charge separation at disordered semiconductor heterojunctions from random walk numerical simulations
(Royal Society of Chemistry, 2014)
Many recent advances in novel solar cell technologies are based on charge separation in disordered
semiconductor heterojunctions. In this work we use the Random Walk Numerical Simulation (RWNS)
method to model the dynamics ...
Panchromatic Solar-to-H2 Conversion by a Hybrid Quantum Dots-Dye Dual Absorber Tandem Device
(American Chemical Society, 2014-01)
Solution-processed mesoscopic oxide semiconductor-based materials offer potentially low-cost and high stability alternative for next generation of water to hydrogen conversion photoelectrochemical cells (PEC). In the present ...
Hybrid Organic-Inorganic Photovoltaics
(WiLEY-VCH Verlag GmbH & Co. KGaA, 2014-04)
High-Efficiency “Green” Quantum Dot Solar Cells
(American Chemical Society, 2014)
Semiconductor quantum dots (QDs) are extremely interesting materials for the development of photovoltaic devices, but currently the present the drawback is that the most efficient devices have been prepared with toxic heavy ...
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 ...
Relaxation of Electron Carriers in the Density of States of Nanocrystalline TiO2
(American Chemical Society, 2014-01)
Band gap localized states and surface states play a dominant role in the application of nanocrystalline metal oxides to photovoltaics and solar fuel production. Electrons injected in nanocrystalline TiO2 by voltage or ...
Photoinduced Giant Dielectric Constant in Lead Halide Perovskite Solar Cells
(American Chemical Society, 2014-06)
Organic-inorganic lead trihalide perovskites have emerged as an outstanding photovoltaic material that demonstrated a high 17.9% conversion efficiency of sunlight to electricity in a short time. We have found a giant ...
Nanoscale mapping by electron energy-loss spectroscopy reveals evolution of organic solar cell contact selectivity
(Elsevier, 2015)
Organic photovoltaic (OPV) devices are on the verge of commercialization being long-term
stability a key challenge. Morphology evolution during lifetime has been suggested to be
one of the main pathways accounting for ...