Understanding the relationship between polymer structure and functional properties has been a central theme of our research. Our research focuses on developing innovative energy harvesting technologies to convert ambient mechanical energy into electrical power. By leveraging piezoelectric, triboelectric, and hybrid nanogenerators, we aim to create efficient and sustainable alternatives to conventional batteries. These technologies harness waste energy from human motion, vibrations, and environmental sources, enabling the development of battery-free electronics that can operate autonomously for extended periods. Our work addresses the growing need for self-sustaining power solutions in wearable electronics, healthcare monitoring systems, and IoT applications, paving the way for a more energy-efficient and environmentally friendly future.