Aqueous dispersion of van der Waals bonded one-dimensional materials Mo6S3I6 with hydrophobic surfaces has been studied. The surface charge of the dispersed Mo6S3I6 is controlled from negative to positive by the charge type of dispersant tail (anionic, SDS and NaDDBS; cationic, CTAB; nonionic, Poloxamer 407), and through this, it is possible to deposit the dispersed Mo6S3I6 in nanosized by electrophoretic deposition at a desired position. When a flexible device was manufactured by transferring Mo6S3I6, it was confirmed that electrical conductivity can be measured in 40% of elongation and more than 1000 times cyclic test.
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT & Future Planning (Nos. 2019R1A2C2011563, 2020R1A2C2010984, and NRF-2019R1A2C1006972).