Jeong Seung Hee, Hjort Klas, Wu Zhigang
Department of Engineering Sciences, The Angstrom Laboratory, Uppsala University, Box 534, 75121, Uppsala, Sweden.
1] Department of Engineering Sciences, The Angstrom Laboratory, Uppsala University, Box 534, 75121, Uppsala, Sweden [2] State Key Laboratory of Digital Manufacturing Equipment and Technology, Huangzhong University of Science and Technology, 430074, Wuhan, China.
Sci Rep. 2015 Feb 12;5:8419. doi: 10.1038/srep08419.
Stretchable electronics offers unsurpassed mechanical compliance on complex or soft surfaces like the human skin and organs. To fully exploit this great advantage, an autonomous system with a self-powered energy source has been sought for. Here, we present a new technology to pattern liquid alloys on soft substrates, targeting at fabrication of a hybrid-integrated power source in microfluidic stretchable electronics. By atomized spraying of a liquid alloy onto a soft surface with a tape transferred adhesive mask, a universal fabrication process is provided for high quality patterns of liquid conductors in a meter scale. With the developed multilayer fabrication technique, a microfluidic stretchable wireless power transfer device with an integrated LED was demonstrated, which could survive cycling between 0% and 25% strain over 1,000 times.
可拉伸电子器件在诸如人体皮肤和器官等复杂或柔软表面上具有无与伦比的机械顺应性。为了充分利用这一巨大优势，人们一直在寻求一种带有自供电能源的自主系统。在此，我们提出一种在柔软基板上对液态合金进行图案化的新技术，旨在制造微流体可拉伸电子器件中的混合集成电源。通过将液态合金雾化喷涂到带有胶带转移粘合剂掩膜的柔软表面上，提供了一种通用制造工艺，可用于制作米级规模的高质量液态导体图案。利用所开发的多层制造技术，展示了一种集成有发光二极管的微流体可拉伸无线电力传输装置，该装置在0%至25%的应变之间循环1000次仍能正常工作。
