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 $\sim$1000 days) and further heat treatment in air at temperatures of up to 450$^\circ$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 $\Omega$/sq at average transmittance in the visible range $T_{av}$ = 82.1%.