Listar por tema "electrical conductivity"
Mostrando ítems 1-15 de 15
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An intrinsic electrical conductivity study of perovskite powders MAPbX3 (X = I, Br, Cl) to investigate its effect on their photovoltaic performance
Royal Society of Chemistry (2024-02-07)An investigation into the intrinsic electrical conductivity of perovskite powders MAPbX3, where X represents iodine (I), bromine (Br), or chlorine (Cl), was conducted to explore its impact on their photovoltaic performance. ... -
Chemi-Structural Stabilization of Formamidinium Lead Iodide Perovskite by Using Embedded Quantum Dots
American Chemical Society (2020-01-6)The approaches to stabilize the perovskite structure of formamidinium lead iodide (FAPI) commonly result in a blue shift of the band gap, which limits the maximum photoconversion efficiency. Here, we report the use of PbS ... -
Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals
American Chemical Society (2022-03-11)The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive ... -
CuO improved (Sn,Sb)O2 ceramic anodes for electrochemical advanced oxidation processes
American Ceramic Society (2018-12)Antimony‐doped tin oxide electrodes with CuO as sintering aid are presented as an economical alternative to metal‐based electrodes, intended for the electrooxidation process of emerging and recalcitrant organic contaminants ... -
Effect of pore generator on microstructure and resistivity of Sb(2)O(3)and CuO doped SnO(2)electrodes
Springer (2020-08-08)Sb2O3 and CuO doped SnO2 ceramic electrodes could be an alternative to the ones currently used ones in the electrooxidation process of water pollutants. The rise of electrode surface by introducing a porogen agent on the ... -
Effect of type and amount of alumina as dopant over the densification and the electrical properties of zinc oxide ceramic electrodes
Elsevier (2021-02)Aluminum-doped zinc oxide (AZO) electrodes can be a good alternative to replace the expensive electrodes (Ti, ITO, FTO, etc.), which are used in the electrooxidation process to remove refractory and emergent contaminants ... -
Enhanced Open-Circuit Voltage of Wide-Bandgap Perovskite Photovoltaics by Using Alloyed (FA1–xCsx)Pb(I1–xBrx)3 Quantum Dots
American Chemical Society (2019-07-16)We report a detailed study on APbX3 (A=Formamidinium (FA+), Cs+; X=I-, Br-) perovskite quantum dots (PQDs) with combined A- and X-site alloying that exhibit, both, a wide bandgap and high open circuit voltage (Voc) for the ... -
Estudio de la conductividad eléctrica en pavimentos y revestimientos cerámicos. Desarrollo de un esmalte vitrificable antielectrostático
Qualicer (1998-03-08)Las condiciones de seguridad en instalaciones donde se manipulan gases inflamables o se disponen de equipos que trabajan en tensiones eléctricas elevadas requieren el uso de suelos con características antielectrostáticas, ... -
In Situ Spectroscopic Ellipsometry for Thermochromic CsPbI3 Phase Evolution Portfolio
American Chemical Society (2020-04-09)Thermochromism is a color change phenomenon for a compound when it undergoes a heating/cooling process. The observation of this phenomenon mostly relies on the naked eye, rather than an exact optical technique, which retards ... -
Morphology and Band Structure of Orthorhombic PbS Nanoplatelets: An Indirect Band Gap Material
American Chemical Society (2021-01-12)PbS quantum dots and nanoplatelets (NPLs) are of enormous interest in the development of optoelectronic devices. However, some important aspects of their nature remain unclear. Recent studies have revealed that colloidal ... -
Non-Ohmic Phenomena in Mn-doped BaTiO3
Wiley-Blackwell (2012)We report here a novel effect in which the resistance of a semiconducting oxide ceramic increases on application of a small dc bias. The ceramic conducts at high temperatures by an n-type hopping mechanism. On application ... -
Stabilization of Black Perovskite Phase in FAPbI3 and CsPbI3
American Chemical Society (2020-05-28)Although halide perovskites allow a great versatility, the application on single-absorber solar cells restricts significantly the number of available materials. In this context, CsPbI3 and FAPbI3 (FA, formamidinium) present ... -
Structural and Electrical Investigation of Cobalt-Doped NiOx/Perovskite Interface for Efficient Inverted Solar Cells
MDPI (2020-04-30)Inorganic hole-transporting materials (HTMs) for stable and cheap inverted perovskite-based solar cells are highly desired. In this context, NiOx, with low synthesis temperature, has been employed. However, the low ... -
Surface versus Bulk Currents and Ionic Space-Charge Effects in CsPbBr3 Single Crystals
American Chemical Society (2022-04-25)CsPbBr3 single crystals have potential for application in ionizing-radiation detection devices due to their optimal optoelectronic properties. Yet, their mixed ionic–electronic conductivity produces instability and hysteretic ... -
Thermal conductivity, electrical resistivity, and dimensionless figure of merit (ZT) determination of thermoelectric materials by impedance spectroscopy up to 250 °C
AIP Publishing (2018-07)Impedance spectroscopy has been shown as a promising method to characterize thermoelectric (TE) materials and devices. In particular, the possibility to determine the thermal conductivity λ, electrical conductivity σ, and ...