Hierarchical porous copper nanosheet outputs 590% more electricity compared to standard copper thin-film triboelectric nanogenerators

https://www.eurekalert.org/news-releases/1111546

"overcomes 2D metal nanosheet's low current output/ poor durability... stable over 100K mechanical cycles, spray-coating process scalable... converts walking, breathing into electricity... continuous battery-free heart rate/ temperature/ physical activity monitoring, energy harvesting, EMI shielding, Joule heating (smart clothing/ thermal comfort)"