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Abstract
Optically transparent and electrically conductive films were investigated for the flexible and transparent heaters. Metal (Ag), silver nanowires (AgNWs) and metal oxide (ITO or ZnO) were employed to form the various types of transparent heaters. A single-layered ITO, metal hybrid AgNWs (ZnO/AgNWs) and ZnO/Ag/ZnO composite were manufactured on PET substrates. Each case was tailored by large-scale device (150 mm x 100 mm).BRFor each structure, visible light transmittance, electrical conductivity, and heating performances were investigated to show the enhanced performances from the ZnO/Ag/ZnO composite, which showed the excellent transmittable (77% at wavelength of 550 nm) and outperforming heating performances to reach 146°C with fast heating speed. The improved performances are mainly attributed to the structure of ZnO/Ag/ZnO, where the thin Ag governs the electrical property with good optical feature. This study suggests that the ZnO/Ag/ZnO transparent heater has the excellent optical and electrical properties with good flexibility and affordable scalability to enlighten the large-scale and flexible heating applications.
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