First Solar primarily manufactures cadmium telluride-based photovoltaic modules and has created new technologies that have broken several solar efficiency records. The company continues to invest heavily in research and development to further increase the efficiency of the company’s thin film module technologies. Cadmium telluride solar cells are a type of thin-film solar cells which can reach efficiencies between 7 to 13 percent. Other types of solar cells, such as monocrystalline panels, have advantages such as higher efficiency rates but higher costs. The production share of different solar cells has varied over the last decade as technological advancements fluctuate.