Depositing aluminum as sacrificial metal to reduce metal–graphene contact resistance
Mao Da-cheng, Jin Zhi†, , Wang Shao-qing, Zhang Da-yong, Shi Jing-yuan, Peng Song-ang, Wang Xuan-yun
       

(a), (b) AFM topography results before and after the treatment, respectively. (c), (d) Corresponding height profiles of the surface before and after the treatment. AFM was performed on a graphene strip with a width of 4 μm.