This review paper explores the integration of nanogenerators (NGs) and solar cells (SCs) to enhance energy harvesting capabilities. It provides a comprehensive analysis of the working mechanisms, design strategies, and advanced hybrid structures of these technologies. The paper discusses various types of NGs, such as piezoelectric (PENG), triboelectric (TENG), pyroelectric (PYNG), and electromagnetic (EMG) generators, and their integration with different types of SCs, including silicon-based, organic, and perovskite variants. The performance indicators, challenges, and applications of these hybrid systems are evaluated, highlighting their potential in self-powered electronics, wearable devices, environmental monitoring, and wireless sensor networks. The review concludes by emphasizing the versatility and compatibility of these hybrid technologies in addressing real-world energy needs and contributing to sustainable and self-sufficient technologies.This review paper explores the integration of nanogenerators (NGs) and solar cells (SCs) to enhance energy harvesting capabilities. It provides a comprehensive analysis of the working mechanisms, design strategies, and advanced hybrid structures of these technologies. The paper discusses various types of NGs, such as piezoelectric (PENG), triboelectric (TENG), pyroelectric (PYNG), and electromagnetic (EMG) generators, and their integration with different types of SCs, including silicon-based, organic, and perovskite variants. The performance indicators, challenges, and applications of these hybrid systems are evaluated, highlighting their potential in self-powered electronics, wearable devices, environmental monitoring, and wireless sensor networks. The review concludes by emphasizing the versatility and compatibility of these hybrid technologies in addressing real-world energy needs and contributing to sustainable and self-sufficient technologies.