College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, People's Republic of China.
Nanotechnology. 2012 Sep 7;23(35):355703. doi: 10.1088/0957-4484/23/35/355703. Epub 2012 Aug 8.
CVD-grown single layer graphene undergoes rapid photochemical oxidation in the presence of ultraviolet light and oxygen. The oxidation results in a homogeneous decay of the graphitic material; no nanoscale line cracks or pits were observed with an atomic force microscope. The conductivity of the graphene film decreases with an increasing degree of oxidation. It is crucial to understand and enhance the photochemical stability of graphene for its long term use as a transparent conducting material.
在紫外光和氧气存在的情况下， CVD 生长的单层石墨烯会迅速发生光化学氧化。氧化导致石墨材料均匀衰减；原子力显微镜没有观察到纳米级线裂纹或凹坑。石墨烯薄膜的电导率随氧化程度的增加而降低。了解和提高石墨烯的光化学稳定性对于其长期作为透明导电材料的应用至关重要。
