A new paper Polymer piezoelectric energy harvesters for low wind speed by the group of Seungbum Hong (Argonne) and the mesoscale collaboration involving Olle Heinonen, Shiyuan Gu and Serge Nakhmanson was just accepted to APL. This is the first paper resulting from our mesoscale collaborative project. Some of our PVDF cantilever vibration movies should be included in the paper supplemental materials.