• 文献标题:   Helicene adsorption on graphene, hexagonal boron nitride, graphane, and fluorographane
  • 文献类型:   Article
  • 作  者:   DENIS PA
  • 作者关键词:   2d material, graphene, helicene, density functional theory
  • 出版物名称:   CHEMICAL PHYSICS LETTERS
  • ISSN:   0009-2614 EI 1873-4448
  • 通讯作者地址:  
  • 被引频次:   2
  • DOI:   10.1016/j.cplett.2022.139998 EA SEP 2022
  • 出版年:   2022

▎ 摘  要

Herein, we investigated the adsorption of helicenes over graphene, boron nitride, graphane, and fluorographane utilizing density functional calculations. Our results indicated that helicenes experience significant structural distortions when adsorbed on the title monolayer. The strong interaction with the surfaces can partially overcome the steric repulsions of helicenes. Although the characteristics of the surfaces considered are very different, the adsorption energies computed for graphene, BN, and graphane are comparable. However, over fluorographane, they were slightly weaker. In the case of bilayer graphene, helicene[4], and helicene[5], when intercalated, their height can be reduced up to 0.3 and 0.4 angstrom, respectively.