Perovskite Polyvinylidene Crystal LateralForce Wang SPMLabs WWafer LateralForceMicroscopy PyroelectricDetector Vortex Bio F14H20 Au111 Trench AtomicSteps UnivMaryland atomic_layer Organic align Strontium Bismuth BloodCell light_emission Semiconductor NiFe ContactModeDot TungstenThinFilmDeposition Dr.JurekSadowski 2dMaterials Ca10(PO4)6(OH)2 Chloroform China BoronNitride organic_polymer TransitionMetal