Fluoride Tungsten_disulfide SrO Tin sulfide Optical amplitude_modulation Polyvinylidene Piranha IVSpectroscopy StrontiuTitanate Anneal Zhi Scratch temp solar_cell Nanotechnology Heat TungstenDeposition Optoelectronic layers Conduct SoftSample 2d_materials optoelectronics Jason Yttria_stabilized_Zirconia Terrace Co/Cr/Pt Ucl NCM Treatment IIT-chennai CastIron molecules Polyethylene