SiliconCrystal Chungnam_National_University GaN Trench Mobile Hole HBN Floppy Insulator SKPM GlassTemp TriGlycineSulphate TempControl Morphology PtfeMembrane LightEmission Zhi Workfunction solar_cell SurfaceChange FrictionForce PinpointNanomechanicalMode Fet MagneticArray Tungsten_disulfide Sulfur CP-AFM MultiferroicMaterials Wonseok LiquidCrystal RedBloodCell MagneticForceMicroscopy food Bismuth Flake