FrictionForce Cross-section Reading HBN self-assembly Friction Inorganic PolyimideFilm epitaxy Zhi Step solar_cell LiftMode PpLdpe Alkane ULCA domain_switching Chromium PiezoelectricForceMicroscopy Nickel HexagonalBN STM self_assembly MolecularSelfAssembly Yttria_stabilized_Zirconia cannabis AdhesionEnergy Molybdenum_disulfide I-VSpectroscopy Fet PMNPT HexacontaneFilm Hole food EPFL