Zheng Wenwen, Saiz Fernan, Shen Yaqing, Zhu Kaichen, Liu Yingwen, McAleese Clifford, Conran Ben, Wang Xiaochen, Lanza Mario
Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, China.
Institute of Material Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
Adv Mater. 2022 Dec;34(48):e2104138. doi: 10.1002/adma.202104138. Epub 2021 Nov 21.
2D materials have many outstanding properties that make them attractive for the fabrication of electronic devices, such as high conductivity, flexibility, and transparency. However, integrating 2D materials in commercial devices and circuits is challenging because their structure and properties can be damaged during the fabrication process. Recent studies have demonstrated that standard metal deposition techniques (like electron beam evaporation and sputtering) significantly damage the atomic structure of 2D materials. Here it is shown that the deposition of metal via inkjet printing technology does not produce any observable damage in the atomic structure of ultrathin 2D materials, and it can keep a sharp interface. These conclusions are supported by abundant data obtained via atomistic simulations, transmission electron microscopy, nanochemical metrology, and device characterization in a probe station. The results are important for the understanding of inkjet printing technology applied to 2D materials, and they could contribute to the better design and optimization of electronic devices and circuits.
二维材料具有许多出色的特性，这使得它们在电子器件制造方面颇具吸引力，例如高导电性、柔韧性和透明度。然而，将二维材料集成到商业器件和电路中具有挑战性，因为它们的结构和性能在制造过程中可能会受到损害。最近的研究表明，标准的金属沉积技术（如电子束蒸发和溅射）会严重破坏二维材料的原子结构。本文表明，通过喷墨打印技术沉积金属不会对超薄二维材料的原子结构造成任何可观察到的损害，并且可以保持清晰的界面。这些结论得到了通过原子模拟、透射电子显微镜、纳米化学计量学以及探针台中的器件表征所获得的大量数据的支持。这些结果对于理解应用于二维材料的喷墨打印技术非常重要，并且它们有助于电子器件和电路的更好设计与优化。
