Electronic and Optical Properties of Perovskite Semiconductor

This chapter presents a comprehensive review of the literature on the electronic and optical properties of metal halide perovskite semiconductors, focusing on how the structure—specifically, the interplay between metal ions and halide anions—affects the electronic behavior of materials. The discussion extends to the significant implications of these interactions for carrier mobility, diffusion length, and charge transport, underlining the exceptional potential of perovskite materials in the realm of optoelectronic applications. Additionally, the chapter discusses the tunability of optical characteristics of perovskites, including absorption and bandgap, through strategic modifications of their chemical composition, providing insights into the optimization of these materials for specific technological applications. Critical challenges, including ion migration that adversely affects the optoelectronic performance and stability of perovskites, are also reviewed, with potential solutions and mitigation strategies being highlighted. This chapter aims to furnish readers with a thorough understanding of metal halide perovskites, paving the way for future advancements in the development and application of these promising semiconductors within the field of optoelectronics.