WS2 SKPM MechanicalProperties CancerCell WWafer Leakage DeflectionOptics PVA Polyvinylidene Organic biocompatible FailureAnalysis PatternedSapphireSubstrat Sulfur LeakageCurrent Defect Polytetrafluoroethylene BismuthFerrite StyreneBeads Resistance Ito FailureAnlaysis BismuthVanadate Conducting TemperatureControllerStage temp SiWafer VerticalPFM DOE #EC SurfaceChange Conductivity fluoroaalkane CompactDisk INSPParis