Herber Marcel, Hill Eric H
Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
The Hamburg Center for Ultrafast Imaging (CUI), Luruper Chaussee 149, 22761 Hamburg, Germany.
Nano Lett. 2025 May 7;25(18):7258-7265. doi: 10.1021/acs.nanolett.4c06355. Epub 2025 Apr 16.
This study presents the use of laser-driven microbubbles for micropatterning TiCT MXenes on flexible polyethylene terephthalate films, yielding conductive micropatterns without the need for pre- or postprocessing. Characterization of the electrical properties under varying strain conditions revealed distinct responses; resistance decreased under compressive strain and increased under tensile strain, demonstrating their potential as strain sensors. The patterns maintained functional integrity over 1000 cycles of bending, with a significant increase in resistance observed under tensile strain (61.6%) compared to compressive strain (11.3%). In addition, narrower MXene lines exhibited greater strain sensitivity, while broader lines were more robust. This work underscores the potential of bubble printing as an effective approach for printing conductive micropatterns and emphasizes its potential for substantial advances in wearable technology, flexible electronics, and strain sensing technologies.
本研究展示了利用激光驱动微泡在柔性聚对苯二甲酸乙二酯薄膜上对TiCT MXenes进行微图案化，从而在无需预处理或后处理的情况下产生导电微图案。在不同应变条件下对电学性能的表征揭示了不同的响应；电阻在压缩应变下降低，在拉伸应变下增加，证明了它们作为应变传感器的潜力。这些图案在1000次弯曲循环中保持功能完整性，与压缩应变（11.3%）相比，在拉伸应变下观察到电阻显著增加（61.6%）。此外，较窄的MXene线条表现出更高的应变灵敏度，而较宽的线条则更坚固。这项工作强调了气泡印刷作为一种打印导电微图案的有效方法的潜力，并强调了其在可穿戴技术、柔性电子和应变传感技术方面取得重大进展的潜力。
