| dc.description.abstract | The thermal and environmental stability of graphene doped with different dopants were investigated. As the performance optimization effect of the previous dopants will be lost with time after being doped for a period of time, this study mainly focuses on maintaining the electrical property optimization after modification through doped polyperfluorosulfonicacid (Nafion). In this experiment, graphene was grown by chemical vapor deposition method, and then the graphene was transferred to the target substrate via wet transfer, and the optimum modification parameters of polyperfluorosulfonicacid (Nafion) were obtained through this study to form a protective layer, so as to protect its modification effect.
This work through comparing gold chloride (AuCl3), gold chloride (AuCl3) polyperfluorosulfonicacid (Nafion), polyperfluorosulfonicacid (Nafion) in above the electrical properties of graphene, and place it in the atmospheric environment and the high temperature environment to track the effectiveness of optimization, this research show that (1) specific pure through the doping of polyperfluorosulfonicacid (Nafion) monolayer graphene can be glass resistance 1100 reduced to 392 Ω Ω/sq/sq. (2) through the doping of gold chloride (AuCl3) polyperfluorosulfonicacid (Nafion), the reduction of its chip resistance can be reduced to about 63 %, and its optimization effect can be maintained in the atmospheric environment and high-temperature environment for 96 days and 7000 minutes respectively. (3) 1 ~ 4 layers of graphene through doped gold chloride (AuCl3) polyperfluorosulfonicacid (Nafion), chip resistor can be respectively 487 Ω/sq, 351 Ω/sq, 302 Ω/sq, 158 Ω/sq, light transmittance in 550 nm band were 98%, 95.2%, 92.8% and 89% respectively.
Graphene CVD growth method has a large area of thin film, the characteristics of high crystallinity and high uniformity, so have potential as a transparent conductive film, but because of graphene its resistance value is still too high, so generally through modification to optimize its electrical properties, modification and optimization of electrical properties, and easily lost its effect over time, this research provides a kind of its electrical properties can be optimized and can maintain its optimization effect modification methods, the future can be applied to transparent conductive film and solar cells, etc. | en_US |