Highly Efficient n-Type Doping of Graphene by Vacuum Annealed Amine-Rich Macromolecules.

ABSTRACT: Flexible transparent conducting electrodes (FTCE) are an essential component of next-generation flexible optoelectronic devices. Graphene is expected to be a promising material for the FTCE, because of its high transparency, large charge carrier mobilities, and outstanding chemical and mechanical stability. However, the electrical conductivity of graphene is still not good enough to be used as the electrode of an FTCE, which hinders its practical application. In this study, graphene was heavily n-type doped while maintaining high transmittance by adsorbing amine-rich macromolecules to graphene. The n-type charge-transfer doping of graphene was maximized by increasing the density of free amine in the macromolecule through a vacuum annealing process. The graphene adsorbed with the n-type dop

SUBMITTER: Seo YM 

PROVIDER: S-EPMC7254272 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature