(Invited) Transparent Electrode and Magnetic Permalloy Made from Novel2 Nanopaper

Wednesday, 31 May 2017: 08:35
Trafalgar (Hilton New Orleans Riverside)
J. Chen (South China University of Technology), M. Akin (Leibniz Universitaet Hannover), L. Yang, L. Jiao (Northeastern University), F. Cheng, P. Lu (South China University of Technology), L. Chen (Northeastern University), D. Liu (South China University of Technology), and H. Zhu (Northeastern University)
We report a novel partial dissolution strategy to liberate uniform cellulose nanofibers with diameter of 5-10 nm from macroscopic cellulose fibers and promote separation of nanofibers in an aqueous environment by forming water-soluble sodium carboxymethylcellulose (CMC) through heterogeneous sodium acetoxylation of cellulose. With the obtained cellulose nanofibers, we fabricated nanopapers which exhibit a high optical transparency of 90.5 % (550 nm) with promising mechanical properties and high thermal stability. By directly depositing Ag nanowires on a wet nanofiber sheet, we fabricated a flexible transparent electrode with 86.5 % (550 nm) transparency and 26.2 Ohm/sq sheet resistance (Rs). Meanwhile, we studied the magnetic properties of sputter deposited thin film of permalloy on nanopaper which exhibited a similar magnetic coercivity and a close saturation magnetization to conventional silicon dioxide-based permalloy.