Phase transition and chirality switching of dibenzopentacene on Pb(111) surface driven by Coulomb expansion
Abstract
The dibenzopentacene (DBPen) molecules on the Pb(111) substrate have been investigated using low-temperature scanning tunneling microscopy. Under the influence of an electric field, DBPen molecules undergo the phase transitions between the 2D mobile phase and the close-packed phase, as well as point and organizational chirality switching. First-principles calculations demonstrate that the electric field significantly modulates the charge transfer from the substrate to the molecules and induces the Coulomb expansion of the molecular lattice, resulting in phase transitions and chirality switching. Our results contribute to understanding the phase control and chirality manipulation of self-assembled molecular structures on solid surfaces.
Article Details
Journal Info
The Journal of Chemical Physics
American Institute of Physics
Authors (9)
Meng-Han Wang
School of Physical Science and Technology, Southwest University 1 , Chongqing 400715,
Mei-Chun Zhang
School of Physical Science and Technology, Southwest University , Chongqing 400715,
Ya-Xuan Zhuo
School of Physical Science and Technology, Southwest University 1 , Chongqing 400715,
Yan Luo
Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Fudan University, 220 Handan, Shanghai 200433, P. R. China
Zuo Li
Jun-Zhong Wang
School of Physical Science and Technology, Southwest University , Chongqing 400715,
Kai Sun
Ji-Yong Yang
School of Physical Science and Technology, Southwest University , Chongqing 400715,
Min-Long Tao
School of Physical Science and Technology, Southwest University , Chongqing 400715,