Tapping China ElectroDeposition margarine Piezoresponse Boron fluoroalkane Scratch temperature controller AFM NiFe TemperatureControlledAFM UnivOfMaryland Polyaniline Aluminum Titanate OpticalModulator Chungnam_National_University #Materials Imprint Fiber HDD tip_bias_mode Conductivity atomic_layer 3-hexylthiophene Electrical&Electronics P3HT bias_mode Singapore Aggregated_molecules self_assembly Graphite Silicon alkanes NUS_Physics