Premium
An Electrolyte‐Free Flexible Electrochromic Device Using Electrostatically Strong Graphene Quantum Dot–Viologen Nanocomposites
Author(s) -
Hwang Eunhee,
Seo Sohyeon,
Bak Sora,
Lee Hanleem,
Min Misook,
Lee Hyoyoung
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401201
Subject(s) - electrochromism , viologen , electrolyte , materials science , graphene , stacking , nanocomposite , electrostatics , nanotechnology , chemical physics , chemistry , organic chemistry , electrode
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.