| 摘要: | 本研究為使用層接式胜肽共價鍵結技術(Layer-by-layer and peptide reaction covalently anchored technique)將氧化石墨烯(GO)固定於聚酯(PET)塑膠基板上的金電極，然後利用硼氫化鈉(NaBH4)將GO還原至部分還原程度的還原型氧化石墨烯(RGO)，並對其進行濕度及電子特性研究。
此可撓式阻抗型濕度感測器表現出優異的防水特性、廣泛的感測線性範圍、快速的反應/回覆時間、對溫度依賴性低及良好的長期穩定性。
部分還原型的RGO在相對低濕30%與相對高濕90% RH下的阻抗頻譜圖曲線特性，證明在低濕時是以電子傳導為主，在高濕時是以離子傳導為主。
Novel flexible humidity sensors were fabricated by layer-by-layer (LBL) covalently bonding graphene oxide (GO) to a gold electrode on a plastic substrate using a peptide chemical protocol and then reducing in-situGO film to a partially reduced GO film. The effect of the duration of reduction of GO film on the electrical and humidity propertiesof the reduced GO film was investigated. This flexible impedance-type humidity sensor exhibited a strong water resistance, a wide working range of humidities, a short response/recovery time, a weak dependence on temperature and good long-term stability. The different complex impedance plots obtained at low and high relative humidity indicated that the ions dominate the conductance of the anchored partially reduced GO film. |
