We　report　simple　and　efficient　fabrication　of　large-area　gold　nanostructures　using　solution-processible　gold　nanoparticles,　where　lithography　and　vacuum　evaporation　techniques　are　not　involved　in　the　fabrication　processes.　These　gold　nanoisland　structures　exhibit　strong　particle　plasmon　resonance　that　is　characterized　by　optical　extinction　spectroscopy　in　the　visible　spectral　range.　The　tunability　of　the　optical　response　is　realized　by　controlling　the　annealing　temperature　and　by　changing　the　concentration　of　the　colloidal　solutions　of　gold　nanoparticles.　This　enables　a　low-cost　route　for　exploiting　new　photonic　devices,　biosensors,　and　optoelectronic　devices　with　localized　field-enhancement.　(C)　2010　Elsevier　B.V.　All　rights　reserved.