Corrigendum to "An approach towards the fabrication of energy harvesting device using Ca-doped ZnO/ PVDF-TrFE composite film" [Polymer 205 (2020) 122869]. (6th January 2021) - Sahoo, Rajesh; Mishra, Suvrajyoti; Ramadoss, Ananthakumar; Mohanty, Smita; Mahapatra, Swapna; Nayak, Sanjay Kumar