Optoelectronic devices are gadgets that combine optics and electronics to manipulate light. They can emit, detect, or control light waves, making them essential in various applications. Common examples include LEDs (light-emitting diodes), which produce light when electricity flows through them, and photodetectors, which sense light and convert it into electrical signals. These devices play a crucial role in modern technology, from fiber optic communication systems that transmit data over long distances to solar cells that convert sunlight into electricity. By harnessing the properties of light, optoelectronic devices help improve efficiency and performance in many electronic systems.