@article{Cheng_Seow_Zhao_Xu_Ji_2020, title={A Flexible and Lightweight Biomass-Reinforced Microwave Absorber}, volume={12}, url={https://www.nmlett.org/index.php/nml/article/view/429}, DOI={10.1007/s40820-020-00461-x}, abstractNote={<p>Developing a flexible, lightweight and effective electromagnetic (EM) absorber remains challenging despite being on increasing demand as more wearable devices and portable electronics are commercialized. Herein, we report a flexible and lightweight hybrid paper by a facile vacuum-filtration-induced self-assembly process, in which cotton-derived carbon fibers serve as flexible skeletons, compactly surrounded by other microwave-attenuating components (reduced graphene oxide and Fe<sub>3</sub>O<sub>4</sub>@C nanowires). Owing to its unique architecture and synergy of the three components, the as-prepared hybrid paper exhibits flexible and lightweight features as well as superb microwave absorption performance. Maximum absorption intensity with reflection loss as low as − 63 dB can be achieved, and its broadest frequency absorption bandwidth of 5.8 GHz almost covers the entire Ku band. Such a hybrid paper is promising to cope with ever-increasing EM interference. The work also paves the way to develop low-cost and flexible EM wave absorber from biomass through a facile method.</p> <p>Highlights:</p> <p>1 A flexible and lightweight microwave absorber was prepared by a vacuum filtration method.<br />2 The remarkable microwave absorbency makes the absorber paper attractive in wireless wearable electronics field.</p>}, journal={Nano-Micro Letters}, author={Cheng, Yan and Seow, Justin Zhu Yeow and Zhao, Huanqin and Xu, Zhichuan J. and Ji, Guangbin}, year={2020}, month={Jun.}, pages={125} }