Transparent Thin Film Heaters Based on Copper Nanowire Networks

Tigan, Doğancan
Polat Genlik, Sevim
İmer, Muhsine Bilge
Ünalan, Hüsnü Emrah
One-dimensional nanostructures open up new avenues in materials science since materials' properties do change with the dimension and size. Silver is a highly appealing material both in nanosize and bulk form. This is because of its high electrical conductivity. Silver nanowires are widely used in electronic and optoelectronic applications. On the other hand, although copper is almost equally conductive and cheaper than silver, copper nanowires are relatively new to these application areas. In this study, transparent thin film heaters were produced using copper nanowire random networks. Initially, copper nanowires were synthesized with a simple solutionbased method. After purification and dispersion of nanowires, thin films were deposited by spray coating. A major problem for copper nanowires in heater application is their oxidation since copper nanowires easily oxidize at elevated temperatures. The problem was solved by the deposition of an aluminum oxide shell layer onto copper nanowires via atomic layer deSRVLWLRQ PHWKRG %DUH FRSSHU QDQRZLUH WKLQ ILOPV¶ heater performance was poor since the heater temperature can only be increased up to 100 °C under an applied bias, which then gradually dropped off due to oxidation. On the other hand, the heater temperature of aluminum oxide coated copper nanowire networks was increased up to 200 °C under an applied bias. Detailed analysis on the thermal, optical and electrical properties of copper nanowire network heaters will be presented.
19th International Metallurgy and Materials Congress


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Citation Formats
D. Tigan, S. Polat Genlik, M. B. İmer, and H. E. Ünalan, “Transparent Thin Film Heaters Based on Copper Nanowire Networks,” İstanbul, Türkiye, 2018, p. 588, Accessed: 00, 2021. [Online]. Available: