IISCBangalore Forevision Butterfly SSRM CarbonNanotube SicMosfet WWafer GaN PECurve Non-ContactMode SurfaceOxidation C_AFM kelvin probe force microscopy LiquidCell OpticalModulator TemperatureControllerStage HiVacuum Aluminum Optoelectronic LowDensityPolyethylene Self-assembledMonolayer Aluminium_Oxide high_resolution Hair Pattern Conductive AFM SThM Ceramics flakes IndiumTinOxide Tapping SolarCell fluoroalkane HexagonalBoronNitride Bismuth