在 Cu-Ni 合金纳米纤维上低温生长石墨烯，用于稳定、灵活的电极。

Low temperature growth of graphene on Cu-Ni alloy nanofibers for stable, flexible electrodes.

机构信息

Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210046, China.

出版信息

Nanoscale. 2014 May 21;6(10):5110-5. doi: 10.1039/c3nr06246e.

DOI:10.1039/c3nr06246e

PMID:24733262

Abstract

Here, we report a facile approach to grow graphene on Cu-Ni alloy NFs at a temperature as low as 450-500 °C, in which solid polystyrene (PS) carbon source and two-temperature-zone furnace were used to prepare graphene. The graphene coated Cu-Ni (designated as G-coated Cu-Ni) NFs were fully characterized by Raman spectra, XPS, FESEM and TEM. The G-coated Cu-Ni NFs exhibited excellent anti-oxidation, anti-corrosion and flexibility properties. The anti-corrosion of G-coated Cu-Ni NFs was examined through cyclic voltammetry measurements by using sea water as the electrolyte solution. Finally, using crossed arrays of G-coated Cu-Ni NF composite electrode thin films (sheet resistance is ∼10 Ω sq(-1)) as the flexible electrode, an alternating current (AC) electroluminescent (EL) device with a configuration of G-coated Cu-Ni/active layer (ZnS : Cu phosphor)/dielectric layer (BaTiO3)/front electrode (CNT) has been fabricated. Under an AC voltage of 200 V and frequency of 1300 Hz, the ACEL device emitted blue light at 496 nm with a brightness of 103 cd m(-2).

摘要

在这里，我们报告了一种在低至 450-500°C 的温度下在 Cu-Ni 合金 NF 上生长石墨烯的简便方法，其中使用了固态聚苯乙烯（PS）碳源和双温区炉来制备石墨烯。用拉曼光谱、XPS、FESEM 和 TEM 对涂覆有石墨烯的 Cu-Ni（标记为 G 涂覆的 Cu-Ni）NFs 进行了充分的表征。G 涂覆的 Cu-Ni NFs 表现出优异的抗氧化、抗腐蚀和柔韧性。通过使用海水作为电解质溶液的循环伏安测量来检查 G 涂覆的 Cu-Ni NFs 的耐腐蚀性。最后，使用交叉排列的 G 涂覆的 Cu-Ni NF 复合电极薄膜（电阻约为 10 Ω sq(-1)) 作为柔性电极，制造了一种具有 G 涂覆的 Cu-Ni/活性层（ZnS：Cu 磷光体）/介电层（BaTiO3）/前电极（CNT）配置的交流电致发光（ACEL）器件。在 200 V 的交流电压和 1300 Hz 的频率下，ACEL 器件在 496nm 处发出蓝光，亮度为 103 cd m(-2)。