title: Novel Synthesis, Coating, and Networking of Curved Copper Nanowires for Flexible Transparent Conductive Electrodes.
abstract: In this work, a whole manufacturing process of the curved copper nanowires (CCNs) based flexible transparent conductive electrode (FTCE) is reported with all solution processes, including synthesis, coating, and networking. The CCNs with high purity and good quality are designed and synthesized by a binary polyol coreduction method. In this reaction, volume ratio and reaction time are the significant factors for the successful synthesis. These nanowires have an average 50 nm in width and 25-40 μm range in length with curved structure and high softness. Furthermore, a meniscus-dragging deposition (MDD) method is used to uniformly coat the well-dispersed CCNs on the glass or polyethylene terephthalate substrate with a simple process. The optoelectrical property of the CCNs thin films is precisely controlled by applying the MDD method. The FTCE is fabricated by networking of CCNs using solvent-dipped annealing method with vacuum-free, transfer-free, and low-temperature conditions. To remove the natural oxide layer, the CCNs thin films are reduced by glycerol or NaBH4 solution at low temperature. As a highly robust FTCE, the CCNs thin film exhibits excellent optoelectrical performance (T = 86.62%, R(s) = 99.14 Ω ◻(-1)), flexibility, and durability (R/R(0) < 1.05 at 2000 bending, 5 mm of bending radius).
authors.affiliation: Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742, South Korea.
authors.forename: Zhenxing
authors.initials: Z
authors.lastname: Yin
authors.affiliation: School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul, 156-756, South Korea.
authors.forename: Seung Keun
authors.initials: SK
authors.lastname: Song
authors.affiliation: Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742, South Korea.
authors.forename: Duck-Jae
authors.initials: DJ
authors.lastname: You
authors.affiliation: School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul, 156-756, South Korea.
authors.forename: Yeongun
authors.initials: Y
authors.lastname: Ko
authors.affiliation: Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742, South Korea.
authors.forename: Sanghun
authors.initials: S
authors.lastname: Cho
authors.affiliation: Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742, South Korea.
authors.forename: Jeeyoung
authors.initials: J
authors.lastname: Yoo
authors.affiliation: Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742, South Korea.
authors.forename: Si Yun
authors.initials: SY
authors.lastname: Park
authors.affiliation: Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742, South Korea.|Advanced Institutes of Convergence Technology, 864-1 Iui-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do, 443-270, South Korea.
authors.forename: Yuanzhe
authors.initials: Y
authors.lastname: Piao
authors.affiliation: School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul, 156-756, South Korea.
authors.forename: Suk Tai
authors.initials: ST
authors.lastname: Chang
authors.affiliation: Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742, South Korea.|Advanced Institutes of Convergence Technology, 864-1 Iui-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do, 443-270, South Korea.
authors.forename: Youn Sang
authors.initials: YS
authors.lastname: Kim
keywords: binary polyol; copper nanowires; curved structures; flexible electrodes; transparent conductive electrodes