Journal
POLYMER
Volume 224, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2021.123758
Keywords
Graphene nanoscroll; 2D materials; Polyalkylthiophene
Categories
Funding
- Minister of Science and Technology, Taiwan [MOST 106-2221-E-006 -052 -MY3]
Ask authors/readers for more resources
The tuning of solvent composition can drive graphene sheets to scroll steadily in solutions, resulting in nanoscrolls and comb-like superstructures. The interlayer distance and curvature of central voids in these graphene nanoscrolls are influenced by the average radius of adsorbed molecular coils and the bending rigidity of graphene hexagonal structural units.
Upon the tuning of solvent composition, the unfavorable solvation of adsorbed polyhexylthiophene is found able to drive graphene sheets to scroll steadily in solutions, resulting in nanoscrolls with a central void and regular stacking of internal layers. For theses steadily evolved graphene nanoscrolls, the interlayer distance is subject to the average radius of adsorbed molecular coils and the bending rigidity of graphene hexagonal structural units restricts the reachable curvature of central voids. When the unfavorable solvation is progressively lessened upon slow crystallization of adsorbed polyhexylthiophene molecules, the reverse unwrapping ensues accordingly. On the other hand, the solvent evaporation initiates the dense growth of crystalline whiskers outward from graphene nanoscrolls and thus results in comb-like superstructures. With mutual impingement effects associated with present superstructures, oriented assembly and growth behaviors of crystalline whiskers are able to occur, creating nematic fields of crystalline whiskers.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available