Pyroelectric CNT HBN TempControl semifluorinated alkane cooling SFAs FM_SKPM Optical BismuthFerrite TipBiasMode KPFM DNA phase_change Ram InLiquid INSP SiliconCrystal contact EFM single_layer AtomicLayer AEAPDES STM OrganicSemiconductor SrTiO3 ScanningTunnelingMicroscopy LateralPFM Platinum Polyethylene Ca10(PO4)6(OH)2 CeNSE_IISc domain_switching RedBloodCell PDMS