Lead halides are chemical compounds formed by the combination of lead and halogen elements, such as chlorine, bromine, or iodine. These compounds are often found in the form of crystals and are known for their unique optical and electronic properties. Common examples include lead(II) chloride and lead(II) bromide, which are used in various applications, including photodetectors and solar cells. Due to their interesting characteristics, lead halides have gained attention in research and technology. They are particularly significant in the field of perovskite solar cells, where they contribute to efficient light absorption and energy conversion. However, the toxicity of lead raises environmental and health concerns, necessitating careful handling and disposal.