▎ 摘　　要

Graphene oxide (GO) sheet is used as a novel substrate for dip-pen nanolithography (DPN). After GO is transferred onto SiO2 using the Langmuir-Blodgett technique, CoCl2 is patterned on both GO and exposed SiO2 substrates simultaneously by DPN, which is used for growth of different structured carbon nanotubes.