Nanowerk  March 24, 2022 The low efficiency of raindrop energy harvesting is a dominating barrier to the raindrop solar cells in practical applications. An international team of researchers (China, Egypt) has developed a MoO3/top electrode-based triboelectric nanogenerator (MT-TENG) with high rain droplet energy conversion efficiency, integrated with a perovskite solar cell through shared electrodes. The interface electrons between the triboelectric layer and electrode were blocked by the MoO3 layer with high permittivity and wide bandgap, and the MoO3-based TENG (M-TENG) increased the surface charge density. The top electrode structure in the solid–liquid interface increased the output charge by 101.1 times […]