石墨烯
材料科学
印刷电子产品
墨水池
柔性电子器件
剥脱关节
电导率
纳米技术
数码产品
热导率
电极
电阻率和电导率
复合材料
电气工程
化学
工程类
物理化学
作者
Ethan B. Secor,Pradyumna L. Prabhumirashi,Kanan P. Puntambekar,Michael L. Geier,Mark C. Hersam
摘要
The ability to print high conductivity, conformal, and flexible electrodes is an important technological challenge in printed electronics, especially for large-area formats with low cost considerations. In this Letter, we demonstrate inkjet-printed, high conductivity graphene patterns that are suitable for flexible electronics. The ink is prepared by solution-phase exfoliation of graphene using an environmentally benign solvent, ethanol, and a stabilizing polymer, ethyl cellulose. The inkjet-printed graphene features attain low resistivity of 4 mΩ·cm after a thermal anneal at 250 °C for 30 min while showing uniform morphology, compatibility with flexible substrates, and excellent tolerance to bending stresses.
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