Relationship between surface plasmon and transmittance enhancement in indium-tin-oxide/Ag/indium-tin-oxide multilayer electrodes

► ITO/Ag/ITO electrodes were prepared by sputtering and thermal evaporation. ► Annealing conditions had an effect on the Ag layer surface morphology. ► 60% coverage of the Ag layer resulted in overall transmittance enhancement. ► 50% coverage of the Ag layer resulted in transmittance enhancement with peak shift.