Optoelectonics Stiffness CntFilm Subhajjit Reduction PinpointNanomechanicalMode non_contact biocompatible Graphene AtomicLayer SelfAssembly BTO self-assembly TPU Switching Indent MfmAmplitude MolybdenumDisulfide Gold PVAC LeakageCurrent rubber PrCurve Layer Moire BoronNitride GaN Piezo HexagonalBN Chromium OpticalElement Fujian Ecoli H-BN Piezoresponse