Duan Yongqing, Li Huayang, Yang Weili, Shao Zhilong, Wang Qilu, Huang YongAn, Yin Zhouping
State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China.
Nanoscale. 2022 Sep 29;14(37):13452-13472. doi: 10.1039/d2nr03049g.
The rapid development of fascinating new optoelectronic materials and devices calls for the innovative production of micro/nanostructures in a high-resolution, large-scale, low-cost fashion, preferably compatible with flexible/wearable applications. Powerful electrohydrodynamic (EHD) deposition techniques, which generate micro/nanostructures using high electrical forces, exhibit unique advantages in high printing resolution (<1 μm), tunable printing modes (electrospray for films, electrospinning for fibers and EHD jet printing for dots), and wide material applicability (viscosity 1-10 000 cps), making them attractive in the fabrication of high-density and high-tech optoelectronic devices. This review highlights recent advances related to EHD-deposited optoelectronics, ranging from solar cells, photodetectors, and light-emitting diodes, to transparent electrodes, with detailed descriptions of the EHD-based jetting mechanism, ink formulation requirements and corresponding jetting modes to obtain functional micro/nanostructures. Finally, a brief summary and an outlook on the future perspectives are proposed.
新型迷人的光电子材料和器件的快速发展，要求以高分辨率、大规模、低成本的方式创新生产微/纳米结构，最好能与柔性/可穿戴应用兼容。强大的电流体动力学（EHD）沉积技术利用高电场力生成微/纳米结构，在高印刷分辨率（<1μm）、可调印刷模式（用于薄膜的电喷雾、用于纤维的电纺丝和用于点的EHD喷射印刷）以及广泛的材料适用性（粘度1 - 10000 cps）方面展现出独特优势，使其在高密度和高科技光电器件制造中颇具吸引力。本文综述重点介绍了与EHD沉积光电子学相关的最新进展，涵盖从太阳能电池、光电探测器、发光二极管到透明电极等方面，并详细描述了基于EHD的喷射机制、油墨配方要求以及获得功能性微/纳米结构的相应喷射模式。最后，给出了简要总结以及对未来前景的展望。
