Yu Yan, Jiang Shenglin, Zhou Wenli, Miao Xiangshui, Zeng Yike, Zhang Guangzu, Liu Sisi
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, PR China.
Sci Rep. 2013;3:2697. doi: 10.1038/srep02697.
The functional layers of few-layer two-dimensional (2-D) thin flakes on flexible polymers for stretchable applications have attracted much interest. However, most fabrication methods are "indirect" processes that require transfer steps. Moreover, previously reported "transfer-free" methods are only suitable for graphene and not for other few-layer 2-D thin flakes. Here, a friction based room temperature rubbing method is proposed for fabricating different types of few-layer 2-D thin flakes (graphene, hexagonal boron nitride (h-BN), molybdenum disulphide (MoS₂), and tungsten disulphide (WS₂)) on flexible polymer substrates. Commercial 2-D raw materials (graphite, h-BN, MoS₂, and WS₂) that contain thousands of atom layers were used. After several minutes, different types of few-layer 2-D thin flakes were fabricated directly on the flexible polymer substrates by rubbing procedures at room temperature and without any transfer step. These few-layer 2-D thin flakes strongly adhere to the flexible polymer substrates. This strong adhesion is beneficial for future applications.
用于可拉伸应用的柔性聚合物上的少层二维（2-D）薄片的功能层引起了广泛关注。然而，大多数制造方法是需要转移步骤的“间接”工艺。此外，先前报道的“无转移”方法仅适用于石墨烯，不适用于其他少层二维薄片。在此，提出了一种基于摩擦的室温摩擦方法，用于在柔性聚合物基板上制造不同类型的少层二维薄片（石墨烯、六方氮化硼（h-BN）、二硫化钼（MoS₂）和二硫化钨（WS₂））。使用了包含数千个原子层的商用二维原材料（石墨、h-BN、MoS₂和WS₂）。几分钟后，通过室温下的摩擦程序，无需任何转移步骤，就在柔性聚合物基板上直接制造出了不同类型的少层二维薄片。这些少层二维薄片与柔性聚合物基板牢固粘附。这种强粘附性有利于未来的应用。
