title: An electrolyte-free flexible electrochromic device using electrostatically strong graphene quantum dot-viologen nanocomposites.
abstract: A strong electrostatic MV(2+) -GQD nanocomposite provides an electrolyte-free flexible electrochromic device wih high durability. The positively charged MV(2+) and negatively charged GQD are strongly stabilized by non-covalent intermolecular forces (e.g., electrostatic interactions, π-π stacking interactions, and cation-π electron interactions), eliminating the need for an electrolyte. An electrolyte-free flexible electrochromic device fabricated from the GQD-supported MV(2+) exhibits stable performance under mechanical and thermal stresses.
authors.affiliation: National Creative Research Initiative, Center for Smart Molecular Memory, Department of Chemistry, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon, Gyeonggi-do, 440-746, Republic of Korea.
authors.forename: Eunhee
authors.initials: E
authors.lastname: Hwang
authors.forename: Sohyeon
authors.initials: S
authors.lastname: Seo
authors.forename: Sora
authors.initials: S
authors.lastname: Bak
authors.forename: Hanleem
authors.initials: H
authors.lastname: Lee
authors.forename: Misook
authors.initials: M
authors.lastname: Min
authors.forename: Hyoyoung
authors.initials: H
authors.lastname: Lee
keywords: electrolyte-free; electrostatic nanocomposites; flexible electrochromic devices; graphene quantum dots; methyl viologen