Cadmium telluride is a compound made of two elements: cadmium and tellurium. It is primarily used in the production of thin-film solar cells, which convert sunlight into electricity. This material is valued for its efficiency and cost-effectiveness in solar energy applications. In addition to solar cells, cadmium telluride has applications in electronics and photodetectors. It has unique properties that allow it to absorb light effectively, making it suitable for various optical devices. However, due to the presence of cadmium, there are environmental and health concerns associated with its use.