GalliumPhosphide ScanningKelvinProbeMicroscopy Platinum Sio2 temperature_control Pores cooling light_emission Scanning_Thermal_Microscopy KevlarFiber PinpointNanomechanicalMode TemperatureControl IISCBangalore BTO LowDensityPolyethylene CNT Ferrite AM_KPFM LDPE DLaTGS DOE PMNPT fifber frequency_modulation CompactDisk SFAs Vortex Defect Holes PhaseTransition heterojunctions Butterfly Subhajjit Hexatriacontane biocompatible