Ferroelectric stability of annealed PVDF-TrFE thin film incorporated with MgO nanofillers di Wahid, Mohamad Hafiz Mohd, Dahan, Rozana Mohd, Arshad, Adillah Nurashikin, Zulkefle, Habibah, Sa'ad, Siti Zaleha, Mahmood, Mohamad Rusop, Gan, Wee Chen, Abd Majid, Wan Haliza