Stable, conductive supramolecular composite of graphene sheets with conjugated polyelectrolyte.
Supramolecularly functionalized graphene-based materials with conjugated poly(2,5-bis (3-sulfonatopropoxy)-1,4-ethynylphenylene-alt-1,4-ethynylphenylene) polyelectrolyte were successfully obtained and exhibited high conductivity and stability (even for 8 months without any aid of free polymer in solution). The excellent aqueous solubility and the possibility for self-assembly through electrostatic interactions (i.e., layer-by-layer assembly) will be realized through various applications of graphene. In addition, PPE-SO(3)(-) molecules exhibit interesting optoelectronic properties, making the resulting graphene-based materials potentially useful in a variety of optoelectronic device applications.
Yang
Huafeng
H
Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, and Graduate University of the Chinese Academy of Sciences, Changchun 130022, PR China.
Zhang
Qixian
Q
Shan
Changsheng
C
Li
Fenghua
F
Han
Dongxue
D
Niu
Li
L