Energy-harvesting refers to the process of capturing and storing energy from various sources in the environment, such as solar light, wind, or vibrations. This technology allows devices to convert these energy sources into usable electrical power, often for small electronics or sensors. Common applications of energy-harvesting include powering wearable devices, wireless sensors, and smart home technologies. By utilizing ambient energy, these systems can operate without the need for traditional batteries, leading to longer lifespans and reduced environmental impact.