Preparation of Inorganic Perovskites

The rapid advancement of inorganic perovskite opto-electronic materials has sparked great interest in the scientific community due to their exceptional optical and electronic properties, making them viable candidates for various applications such as solar cells, light-emitting diodes (LEDs), and photodetectors. This chapter provides a comprehensive overview of the preparationPreparation methods employed for synthesizing inorganic perovskite materials, including perovskite quantum dotsQuantum dots (QDs), perovskite film and perovskite single crystalSingle crystals. The synthesis of QDs process involves the controlled mixing of precursor materials, typically metal halides and organic ligands, followed by a series of reaction steps, such as hot-injection or ligand-assisted reprecipitation, to achieve precise control over the size and composition of the QDs. Surface passivation techniques using organic ligands or inorganic shell materials are employed to enhance stability and photoluminescence properties. The perovskite film preparationPreparation process involves the careful selection and purification of precursor materials, followed by their deposition onto substrates using techniques such as spin coating, doctor blading, or vapor deposition. Subsequently, thermal treatment through annealing is performed to facilitate the formation of the desired perovskite crystal structure and enhance the film opto-electronic properties. Meanwhile, this chapter discusses the optimization strategies for each steps, including precursor selection, deposition techniques, annealing conditions. Furthermore, it also explores ongoing research efforts aimed at improving the stability, scalability, and efficiency of inorganic perovskite opto-electronic materials to enable their successful integration into practical devices. The synthesis process of perovskite single crystalSingle crystals involves the controlled crystallization of precursor materials, typically metal halides and organic cations, through various techniques such as solution growth, vapor-assisted methods, or solid-state reactions. Factors such as solvent choice, temperature, and growth conditions play a crucial role in determining crystal qualities and morphologies.