SolarCell PiezoelectricForceMicroscopy Ucl contact Fet Polyvinylidene Fiber NUS_NNI_Nanocore Domain Solar 2-vinylpyridine PDMS Foil molecular_self_assembly Lanthanum_aluminate Cobalt-dopedIronOxide Ananth multi_layer SmallScan LiftMode Etch margarine Bmp Formamidinium_lead_iodide Aggregated_molecules CalciumHydroxide LiftHeight hard_disk organic_polymer tip_bias_mode electrospinning Blend LaAlO3 WS2 Polydimethylsiloxane