KelvinProbeForceMicroscopy LDPE TPU align Optical OrganicSemiconductor STM Calcium ImideMonomer PyroelectricDetector SelfAssembly I-VSpectroscopy Fujian Blend TappingMode Korea BoronNitride Non-ContactMode Vanadate Conductivity Imprint Polypropylene Conduct Varistor Lateral_Force_Microscopy ReflexLens SolarCell PUR FrequencyModulation Laser Inorganic_Compound EPFL PolyvinylideneFluoride MonoLayer BFO