Abstract

In this work we investigate the addition of n-methyl pyrrolidone solvent on the morphology of spin-coated graphene oxide film. In order to overcome the poor wettability of polyethylene terephthalate substrate by commercially available water graphene oxide suspension, we made two-component suspension with different n-methylpyrrolidone to water ratio. We successfully showed possibility of thin and uniform GO film formation and found optimal solvent ratio. According to optical observations, AFM and Raman spectroscopy defined that the most uniform film was deposited from the suspension with 50:50 water to n-methyl pyrrolidone ratio.

中文翻译：

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从混合水-有机悬浮液中旋涂沉积氧化石墨烯

摘要

在这项工作中，我们研究了添加 n-甲基吡咯烷酮溶剂对旋涂氧化石墨烯薄膜形态的影响。为了克服市售水氧化石墨烯悬浮液对聚对苯二甲酸乙二醇酯基材的润湿性差的问题，我们制备了具有不同正甲基吡咯烷酮与水比的双组分悬浮液。我们成功地展示了薄而均匀的 GO 薄膜形成的可能性，并找到了最佳溶剂比例。根据光学观察，AFM 和拉曼光谱确定最均匀的薄膜是从具有 50:50 水与 n-甲基吡咯烷酮比例的悬浮液中沉积的。