Wei Zhiqiang, Zhou Zhang-Kai, Li Qiuyu, Xue Jiancai, Di Falco Andrea, Yang Zhongjian, Zhou Jianhua, Wang Xuehua
State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, and Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China.
SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife, KY16 9SS, UK.
Small. 2017 Jul;13(27). doi: 10.1002/smll.201700109. Epub 2017 May 22.
Wearable plasmonic devices combine the advantages of high flexibility, ultrathinness, light weight, and excellent integration with the optical benefits mediated by plasmon-enhanced electric fields. However, two obstacles severely hinder further developments and applications of a wearable plasmonic device. One is the lack of efficient approach to obtaining devices with robust antimotion-interference property, i.e., the devices can work independently on the morphology changes of their working structures caused by arbitrary wearing conditions. The other issue is to seek a facile and high-throughput fabrication method to satisfy the financial requirement of industrialization. In order to overcome these two challenges, a functional flexible film of nanowire cluster is developed, which can be easily fabricated by taking the advantages of both conventional electrochemical and sputtering methods. Such flexible plasmonic films can be made into wearable devices that work independently on shape changes induced by various wearing conditions (such as bending, twisting and stretching). Furthermore, due to plasmonic advantages of color controlling and high sensitivity to environment changes, the flexible film of nanowire cluster can be used to fabricate wearable items (such as bracelet, clothes, bag, or even commercial markers), with the ability of wireless visualization for humidity sensing.
可穿戴等离子体设备兼具高柔韧性、超薄、轻质等优点，并且能与等离子体增强电场介导的光学优势实现出色整合。然而，有两个障碍严重阻碍了可穿戴等离子体设备的进一步发展和应用。一是缺乏获得具有强大抗运动干扰性能的设备的有效方法，即这些设备能够在任意佩戴条件导致其工作结构形态变化的情况下独立工作。另一个问题是要寻找一种简便且高通量的制造方法，以满足产业化的资金需求。为了克服这两个挑战，开发了一种纳米线簇功能柔性薄膜，利用传统电化学方法和溅射方法的优势可以轻松制备这种薄膜。这种柔性等离子体薄膜可制成可穿戴设备，能在各种佩戴条件（如弯曲、扭转和拉伸）引起的形状变化下独立工作。此外，由于纳米线簇柔性薄膜具有颜色控制的等离子体优势以及对环境变化的高灵敏度，它可用于制造可穿戴物品（如手镯、衣服、包，甚至商业标记），具备用于湿度传感的无线可视化能力。
