SolarCell PinPointMode Sio2 Hair Chemical_Vapor_Deposition Collagen Sphere Organic Subhajjit mono_layer flakes Potential PhaseTransition Platinum Tungsten_disulfide ring shape GaAs Chloroform PvdfFilm GlassTemperature Conductive AFM Treatment Mapping Neodymium SiWafer mfm_amplitude GranadaUniv LFM LiIonBattery Cell Optoelectonics FuelCell IVSpectroscopy Hafnium_dioxide Permalloy