Infrared materials are materials that exhibit unique properties related to the absorption, reflection, and transmission of infrared radiation. These materials are commonly used in various applications such as thermal imaging, spectroscopy, and communication systems. Infrared materials can be categorized into organic materials, inorganic materials, and hybrid materials, each offering different advantages and limitations based on their chemical composition and structure. Researchers in this field focus on developing novel infrared materials with enhanced properties, such as improved sensitivity, durability, and transparency, to meet the growing demand for advanced infrared technologies in various industries.