Indium phosphide is a compound made of the elements indium and phosphorus. It is a semiconductor material commonly used in electronics and optoelectronics, particularly in devices like lasers and photodetectors. Its unique properties allow it to efficiently convert electrical energy into light and vice versa. This material is known for its high electron mobility and direct bandgap, making it suitable for high-frequency and high-power applications. Indium phosphide is often used in telecommunications, especially in fiber optic systems, where it helps transmit data over long distances with minimal loss.