| 摘要: | 本研究探討不同摻雜物摻雜於石墨烯上之熱穩定性及環境穩定性。由於以往的摻雜物，在摻雜後經過一段時間，其所貢獻的電性質表現優化效果，會隨著時間而流失，因此本研究主要為藉由摻雜全氟磺酸樹脂(Nafion)來使其改質後的電性質優化能維持。本實驗利用化學氣相沉積法成長石墨烯，接著經由濕轉將石墨烯轉印至目標基板上，再使用本研究所探討出的最佳全氟磺酸樹脂(Nafion)改質參數，使其形成保護層，達到提升電性質及穩定性之改質目的。
本研究透過比較摻雜氯化金(AuCl3)、氯化金(AuCl3)\全氟磺酸樹脂(Nafion)、全氟磺酸樹脂(Nafion)於石墨烯之上的電性質表現，並將其放置於大氣環境及高溫環境中去追蹤其優化的時效性，本研究具體展現出 (1)單純透過摻雜全氟磺酸樹脂(Nafion)可將單層石墨烯原片電阻1100 Ω/sq降低到392 Ω/sq; (2)透過氯化金(AuCl3)\全氟磺酸樹脂(Nafion)摻雜可將其片電阻降幅降至約63 %左右，在大氣環境及高溫環境中可維持其優化效果分別達到96天及7000分鐘; (3)1~4層石墨烯透過摻雜氯化金(AuCl3)\全氟磺酸樹脂(Nafion)，可將片電阻分別降至487 Ω/sq、351 Ω/sq、302 Ω/sq、158 Ω/sq，光穿透率於550 nm波段分別為98 %、95.2 %、92.8 %、89 %。
CVD成長法石墨烯具有大面積薄膜、高結晶性及高均勻性的特點，故擁有作為透明導電薄膜的潛力，但是由於石墨烯其片電阻值還過高，所以普遍透過改質來優化其電性質，而改質所得到的電性質優化，又容易隨著時間而流失其效果，故本研究提供一種可將其電性質優化，並能維持其優化效果的改質方法，未來可應用於透明導電薄膜及太陽能電池等。
;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. |
