Perovszkitalapú

Perovszkitalapú refers to materials with a specific crystal structure, named after the mineral perovskite (calcium titanate, CaTiO3). This structure is characterized by the chemical formula ABX3, where 'A' and 'B' are cations of different sizes, and 'X' is an anion, typically a halide or oxide. The 'A' cation is larger and located at the corners of a cubic unit cell, while the 'B' cation is smaller and sits at the center. The 'X' anions form octahedra around the 'B' cation, with the 'A' cation fitting into the spaces between these octahedra.

The versatility of the perovskite structure allows for a wide range of elemental substitutions at the A, B, and X sites. This tunability is a key reason for the intense research interest in these materials. By altering the constituent elements, scientists can engineer specific properties, including optical, electronic, magnetic, and catalytic behaviors.

Perovskite-based materials have found applications in diverse fields. For instance, in photovoltaics, perovskite solar cells have shown rapid advancements in efficiency, rivaling and even surpassing traditional silicon-based cells in some cases, due to their excellent light absorption and charge transport properties. They are also explored for use in light-emitting diodes (LEDs), transistors, sensors, catalysts for chemical reactions, and thermoelectric devices. The ongoing development of perovskite-based technologies holds significant promise for future innovations in energy and electronics.