Semiconductors play a crucial role in modern electronics because they are the foundation of electronic devices such as transistors, diodes, and integrated circuits. They are used to control the flow of electrical currents within a device, enabling the manipulation of signals and the amplification of electrical signals. Semiconductors are essential components in smartphones, computers, televisions, and many other electronic devices that we use in our daily lives. Their unique properties allow for the miniaturization of electronic components, leading to the development of smaller, faster, and more efficient devices.