<br>通过纳米粒子自组装和转移印刷快速制造高分辨率柔性电子产品,Nano Letters

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通过纳米粒子自组装和转移印刷快速制造高分辨率柔性电子产品
Nano Letters ( IF 9.6 ) Pub Date : 2024-01-17 , DOI: 10.1021/acs.nanolett.3c04316
Xuan Li ₁ , Lei Chen ₁ , Guoxu Yu ₁ , Lele Song ₁ , Ding Weng ₁ , Yuan Ma ₁ , Jiadao Wang ₁

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印刷电子技术是柔性电子和可穿戴设备的关键组件，但实现高分辨率和高效率的兼容性仍然是一个重大挑战。在这里，我们提出了一种通过自组装和转移印刷快速制造高分辨率纳米粒子微电子学的方法。构建了张力梯度-静电吸引复合诱导纳米粒子自组装策略，利用弯液面马兰戈尼效应和双电层效应，可显着提高自组装效率、稳定性和覆盖率。密堆积纳米颗粒自组装层可以在大面积的微结构表面上快速形成。受油墨印刷的启发，进一步提出了一种转移印刷策略，将自组装层转化为共形微图案。可以稳定地制造大面积、高分辨率（2μm）和超薄（1μm）纳米粒子微电子器件，比流体印刷方法有显着改进。揭示了纳米粒子微电子学独特的可变形性、可恢复性和可扩展性，为各种学术和实际应用提供了有希望的机会。

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Rapid Fabrication of High-Resolution Flexible Electronics via Nanoparticle Self-Assembly and Transfer Printing

Printed electronic technology serves as a key component in flexible electronics and wearable devices, yet achieving compatibility with both high resolution and high efficiency remains a significant challenge. Here, we propose a rapid fabrication method of high-resolution nanoparticle microelectronics via self-assembly and transfer printing. The tension gradient–electrostatic attraction composite-induced nanoparticle self-assembly strategy is constructed, which can significantly enhance the self-assembly efficiency, stability, and coverage by leveraging the meniscus Marangoni effect and the electric double-layer effect. The close-packed nanoparticle self-assembly layer can be rapidly formed on microstructure surfaces over a large area. Inspired by ink printing, a transfer printing strategy is further proposed to transform the self-assembly layer into conformal micropatterns. Large-area, high-resolution (2 μm), and ultrathin (1 μm) nanoparticle microelectronics can be stably fabricated, yielding a significant improvement over fluid printing methods. The unique deformability, recoverability, and scalability of nanoparticle microelectronics are revealed, providing promising opportunities for various academic and real applications.

更新日期：2024-01-17

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