alkanes LDPE Photovoltaics Logo Hydroxyapatite PatternedSapphireSubstrat Pinpoint MBE HexacontaneFilm Materials gallium_nitride FM-KPFM Workfunction Bio Au111 LowDensityPolyethylene HydroGel OrganicCompound Composition Inorganic InorganicCompound Spincast DataStorage Phosphide MeltingPoint Ram single_layer SKKU FloppyDisk HafniumDioxide Chrome TungstenDeposition IcelandSpar Crystal Litho