Energy harvesting technology is an emerging technology, particularly important for the wireless sensor networks because it is that the core technology for internet of things (IoT), smart manufacturing and smart cities, etc. Since, wireless sensors are typically installed on mobile objects, in remote areas or harsh environments, it's extremely challenging to take care of their long-term sensing/monitoring function thanks to the requests for constant electric power or periodical replacement of batteries. Energy harvesting technologies are explored to power wireless sensors by utilizing piezoelectric, pyroelectric, electromagnetic and triboelectric effects. Triboelectric nanogenerator (TENG) is considered the foremost suitable one due to its very high power outputs and conversion efficiency. Great efforts specialise in the performance enhancement through the innovations to extend surface charge density. checking out better materials and optimal combination and modifying materials properties are the 2 common methods for obtaining triboelectric materials with high surface charge densities. we've been performing on these for a short time and achieved composite materials with excellent triboelectric properties and various optimal material combinations for TENGs.