NUS FM-KPFM SingleLayer suspended_graphene Yeditepe_University Modulus Polyvinylidene_fluoride Polarization InorganicCompound StyreneBeads flakes HDD P3HT ContactMode BoronNitride Melt fluorocarbon Praseodymium Optoelectonics PolyStylene UTEM Solar domain_switching Vac ShenYang NUSNNI GaN Biology SKKU ForceMapping IMT_Bucharest Patterns EPFL HexacontaneFilm TCS