HexagonalBN Zhi IMT_Bucharest Boundary CuSubstrate silicon_oxide Sperm Steps Alkane electrospinning ScanningThermalMicroscopy Transparent ScanningIon-ConductanceMicroscopy LDPE HighAspect self_assembly Epoxy Mfm block_copolymer SICM ThermalDetectors UTEM PDMS Memory molecules Barium_titanate Hafnium_dioxide Pyroelectric IIT-chennai hydrocarbon UnivOfMaryland mfm_amplitude Composition vertical_PFM Blend