Rollerball-Pen-Drawing Technology for Extremely Foldable Paper-Based Electronics

Liu, SR (Liu, Shuiren)^[ 1 ] ; Li, JP (Li, Junpeng)^[ 2 ] ; Shi, XL (Shi, Xinlei)^[ 1 ] ; Gao, EL (Gao, Enlai)^[ 3,4 ] ; Xu, ZP (Xu, Zhiping)^[ 3,4 ] ; Tang, HH (Tang, Honghao)^[ 1 ] ; Tong, K (Tong, Kwing)^[ 5 ] ; Pei, QB (Pei, Qibing)^[ 5 ] ; Liang, JJ (Liang, Jiajie)^[ 1,6 ] ; Chen, YS (Chen, Yongsheng)^[ 1,6 ]

ADVANCED ELECTRONIC MATERIALS, 2017, 3(7): 文献号: 1700098

DOI: 10.1002/aelm.201700098

 WOS:000405205300018

Abstract

It is reported that graphene oxide (GO) can work as the dispersing, associate thickening, stabilizing, adhesive, oxidation-resistant, and mechanical reinforcing agents simultaneously to formulate a drawable conductive ink with silver nanowire (AgNW). The synergistic effect of combining AgNW with GO can bring forth the AgNW-GO dynamic network, which imparts appropriate viscosity and rheological property to the ink for reliable roller-ball-pen drawing on paper and plastic substrates and enables the drawn conductive traces to simultaneously possess high conductivity, remarkable foldability, and stability. The electrical conductivity of the rollerball-pen drawn electrodes with mild post-treatment condition by drying at 25 degrees C for approximate to 5 min after writing on paper can achieve 2.3 x 10(4) S cm(-1). The drawn electrodes are used as extremely foldable electrodes that can retain a record high conductivity of 1.4 x 10(4) S cm(-1) after 1000 folding-unfolding cycles. The feasibility of the drawable conductive ink is further demonstrated by fabricating paper-based conductive circuits and a capacitive touch screen sensor with outstanding foldability.