molecules StyreneBeads AtomicSteps Steps mechanical property HexagonalBoronNitride PhaseChange thermal_conductivity AtomicLayer Hexylthiophene MBE Anneal Pinpoint PFM Photovoltaics TriGlycineSulphate Conductivity Fiber TungstenDeposition atomic_layer SPMLabs Tin disulfide FailureAnalysis PUR Scanning_Thermal_Microscopy Vortex BiVO4 EPFL CastIron cannabis InsulatorFilm Protein CntFilm ImideMonomer PhaseTransition temperature controller AFM