Liu Fan, Shi Jian, Xu Jinpeng, Han Nannan, Cheng Yingchun, Huang Wei
Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China.
Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
Nanoscale. 2022 Jul 21;14(28):9946-9962. doi: 10.1039/d2nr02093a.
Over the years, there have been major advances in two-dimensional (2D) materials on account of their excellent and unique properties. Among the various strategies for 2D material fabrication, chemical vapor deposition (CVD) is considered as the most promising method to achieve large-area and high-quality 2D film growth. Furthermore, to realize the potential applications of 2D materials in different fields, the integration of 2D materials into functional devices is essential. However, the materials made by common CVD are randomly distributed on substrates, which is disadvantageous for fabricating arrays of devices. To solve this problem, a site-selective growth method was developed to meet the requirement of batch production for practical applications because it achieves control over the locations of products and benefits the subsequent direct integration. Herein, state-of-the-art methods for site-selective synthesis, including seeded growth and patterned growth, are reviewed. Then, the electronic and optoelectronic applications of the as-grown 2D materials are also reviewed. Finally, the remaining challenges and future prospects regarding site-selective methods and applications are discussed.
多年来，二维（2D）材料因其优异且独特的性能取得了重大进展。在二维材料制备的各种策略中，化学气相沉积（CVD）被认为是实现大面积、高质量二维薄膜生长最具前景的方法。此外，为了实现二维材料在不同领域的潜在应用，将二维材料集成到功能器件中至关重要。然而，通过普通CVD制备的材料随机分布在衬底上，这不利于制造器件阵列。为了解决这个问题，开发了一种位点选择性生长方法，以满足实际应用中批量生产的需求，因为它能够控制产物的位置并有利于后续的直接集成。在此，综述了包括籽晶生长和图案化生长在内的位点选择性合成的先进方法。然后，还综述了所生长的二维材料的电子和光电应用。最后，讨论了位点选择性方法及应用方面尚存的挑战和未来前景。
