Jiang Yining, Gao Liang, Wang Xiaohan, Dai Wentao, Wu Jiang, Dai Xiao, Zou Guifu
College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215000, China.
University of Electronic Science and Technology of China, Chengdu, China.
Nanoscale Res Lett. 2019 Jun 18;14(1):207. doi: 10.1186/s11671-019-3040-9.
Applications of graphene as transparent conductive electrodes (TCE) have been hindered either by high cost of single crystal graphene or balance between transparency and sheet resistance of polycrystalline graphene. In this work, we propose to fabricate multilayer graphene film grids (MGFG) to enhance transparency and keep low sheet resistance through IR laser tailoring. It is proved that the transparency of MGFG could be increased by 200 times while remaining its competitive sheet resistance as low as 340 Ω sq through adjusting the tailoring grid, and the corresponding figures of merit (FoM) is increased from 0.1 to 3.6. As-obtained MGFG is demonstrated in generating controllable local thermal field and defogging efficiently. The strategy of laser-tailoring grid will greatly advance the applications of graphene for transparent electrodes in industry.
石墨烯作为透明导电电极（TCE）的应用一直受到限制，这要么是由于单晶石墨烯成本高昂，要么是由于多晶石墨烯在透明度和薄层电阻之间难以平衡。在这项工作中，我们提议通过红外激光剪裁来制造多层石墨烯薄膜网格（MGFG），以提高透明度并保持低薄层电阻。结果表明，通过调整剪裁网格，MGFG的透明度可提高200倍，同时保持其具有竞争力的低薄层电阻，低至340Ω/sq，相应的品质因数（FoM）从0.1提高到3.6。所制备的MGFG在产生可控的局部热场和高效除雾方面得到了验证。激光剪裁网格的策略将极大地推动石墨烯在工业上作为透明电极的应用。
