Photosensitizers are special compounds that become activated by light, usually in the visible spectrum. When exposed to light, they can produce reactive oxygen species, which can damage nearby cells or tissues. This property makes them useful in various medical applications, particularly in photodynamic therapy for treating certain types of cancer. In addition to medical uses, photosensitizers are also employed in photovoltaic cells to enhance solar energy conversion. They can help capture sunlight and convert it into electrical energy, contributing to the development of more efficient solar technologies. Their ability to interact with light makes them valuable in both health and energy sectors.