Solution-assisted ultrafast transfer of graphene-based thin films for solar cells and humidity sensors
Jiawei Sun, Xiao Xie, Hengchang Bi, Haiyang Jia, Chongyang Zhu, Neng Wan, Jianqiu Huang, Meng Nie, Dan Li, Litao Sun
NANOTECHNOLOGY | IOP PUBLISHING LTD | Published : 2017
Vacuum filtration enables the fabrication of large-area graphene-based membranes (GBMs), possessing a smoother surface than that by spray, spin coating or drop casting. However, due to the strong interaction with substrates, the separation of thin GBMs from the filter is problematic. Conventional stamping separation/transfer of graphene oxide (GO) thin films requires another substrate and pressing for >10 h, which may damage the delicate structure of the transfer substrates. Other methods require GO to be reduced on filters before separation, thus limiting the reduction methods. Inspired by a coagulation bath that enables rapid formation of ultrastrong GO fibers, we present an ultrafast (<1 ..View full abstract
Awarded by National Natural Science Foundation of China
Awarded by National Basic Research Program of China
This work was supported by the National Natural Science Foundation of China (Nos 61274114, 51420105003, 11525415, 11327901 and 51302037), and the National Basic Research Program of China (Grant No. 2015CB352106).