Hybrid lead halide perovskites have emerged as high-performance photovoltaic materials with their extraordinary optoelectronic properties. In particular, the remarkable device efficiency is strongly influenced by the perovskite crystallinity and the film morphology. Here, we investigate the perovskites crystallisation kinetics and growth mechanism in real time from liquid precursor continually ...

ABSTRACT Metal halide perovskites have revolutionized the field of solution-processable photovoltaics. Within just a few years, the power conversion efficiencies of perovskite-based solar cells have been improved significantly to over 20%, which makes them now already comparably efficient to silicon-based photovoltaics. This breakthrough in solution-based photovoltaics, however, has the drawbac...

Sr-doped lanthanum scandate La1?xSrxScO3?? (LSS) is a promising perovskite-type material for electrochemical applications such as proton conductors. Oxygen vacancy common defect in ABO3-type perovskites. It controls ion transport well uptake. The energetic, structural, and electronic properties of oxygen LSS are studied deploying the DFT method with meta-GGA functional. formation energies were ...

Ammonia is oxidized over PtRh alloy gauzes to form NO as the first step in the industrial production of nitric acid, a process that has remained practically unchanged for over 80 years. The reaction typically yields 94–96% NO and 4–6% by-products (N2O and N2) at 1073–1223 K. [1] Major drawbacks associated with the platinum-based catalysts are: 1) high production cost, 2) metal loss in the form ...

Redox reactivity of La(1-x)SrxMnO3 (LSM) perovskites towards a solar thermochemical CO2 splitting (CS) cycle is investigated. The LSM are synthesized via solution combustion synthesis (SCS) method using glycine as the reducing agent. Multiple analytical techniques used for structural characterization perovskites. Thermogravimetric thermal reduction (TR) and CS cycles (in three sets: one, ten cy...

for the first time, this research reports the formation of nanoporous layers of metals on the surface of metal substrates by raney method and their conversion to corresponding porous perovskite layers. the noble metals doped perovskites are used as catalytic converter for reducing automotive pollutants. the use of perovskite as a substrate for the noble metals can reduce the need for such metal...

Lanthanum strontium aluminum ferrite (La0.8Sr0.2Al0.2Fe0.8O3±δ-LSAF) perovskites are drawing attention as cathodes in solid oxide fuel cells (SOFCs). The structural properties of these materials mostly counting on the methods preparation. In this study, two different preparation namely hydrothermal and sol-gel were applied to prepare LSAF perovskite. characterization results including scanning ...

Lead-free organic-inorganic tin halide perovskites were prepared and investigated by a rapid screening technique utilizing a modified scanning electrochemical microscope (SECM). We studied liquid junction photoelectrochemical (PEC) solar cells based on p-type methylammonium tin halide (MASnI3-xBrx) perovskites employing the benzoquinone (BQ) redox couple, BQ/BQ , in dichloromethane (CH2Cl2). We...

Organolead halide perovskites have attracted substantial attention because of their excellent physical properties, which enable them to serve as the active material in emerging hybrid solid-state solar cells. Here we investigate the phototransistors based on hybrid perovskite films and provide direct evidence for their superior carrier transport property with ambipolar characteristics. The fiel...

For the first time, this research reports the formation of nanoporous layers of metals on the surface of metal substrates by Raney method and their conversion to corresponding porous perovskite layers. The noble metals doped perovskites are used as catalytic converter for reducing automotive pollutants. The use of perovskite as a substrate for the noble metals can reduce the need for such metal...