Charge transfer dynamics of 3,4,9,10-perylene-tetracarboxylic-dianhydride molecules on Au(111) probed by resonant photoemission spectroscopy Academic Article uri icon

abstract

  • Charge transfer dynamics across the lying-down 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) organic semiconductor molecules on Au(111) interface has been investigated using the core-hole clock implementation of resonant photoemission spectroscopy. It is found that the charge transfer time scale at the PTCDA∕Au(111) interface is much larger than the C 1s core-hole lifetime of 6 fs, indicating weak electronic coupling between PTCDA and the gold substrate due to the absence of chemical reaction and∕or bonding.

authors

  • Cao, Liang
  • Wang, Yu-Zhan
  • Chen, Tie-Xin
  • Zhang, Wen-Hua
  • Yu, Xiao-Jiang
  • Ibrahim, Kurash
  • Wang, Jia-Ou
  • Qian, Hai-Jie
  • Xu, Fa-Qiang
  • Qi, Dong-Chen
  • Wee, Andrew TS

publication date

  • November 7, 2011