Stability of Functional Characteristics of Transparent Electrodes Based on the ZnO:Ga/Ag/ZnO:Ga Multilayer Structure

Abstract—Since the stability of functional properties of a transparent conducting three-layer structure ZnO:Ga/Ag/ZnO:Ga is important for practical application, we studied its long-term durability and thermal stability in air environment. It has been demonstrated that after prolonged interaction with the air environment at room temperature (for ~1000 days) and further heat treatment in air at temperatures of up to 450°C (for up to 10 h), the three-layer structure retains its integrity and is characterized by a low sheet resistance R_s = 2.8 Ohm/sq at average transmittance in the visible range T_av = 82.1%.