Ionic compound mediated rearrangement of 3, 4, 9, 10-perylene tetracarboxylic dianhydride molecules on Ag(100) surface. (17th June 2015)

• Record Type: Journal Article
• Authors: Guo, Qinmin; Huang, Min; Lu, Shuangzan; Cao, Gengyu
• Is Part Of: Nanotechnology. Volume 26:Number 27(2015)
• Publication Date: 2015-06-17
• Subjects: structure transition -- KCl -- STM -- PTCDA; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/0957-4484/26/27/275603
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Tailoring of the assembly structure of organic molecular monolayer is of great importance to improve the performance of molecular devices. In this work, a typical ionic compound, namely KCl, was used to mediate the rearrangement of 3, 4, 9, 10-perylene tetracarboxylic dianhydride (PTCDA) monolayer on Ag(100). Combined scanning tunneling microscopy (STM) and low energy electron diffraction (LEED) results indicate that both molecule and molecular superlattice would rotate after the dosing of KCl. The density functional theory calculation shows that KCl would exist in the form of molecules rather than ions on Ag(100) and demonstrates that experimentally observed structural transition induced by KCl molecules is energetically favored.