AIP Advances (Apr 2019)

Analyze chemisorbed organic/metal interface by combining the two sub-interfaces model and the integer charge transfer model

  • Ying-Ying Du,
  • Wen-Jie Li,
  • Guang-Hua Chen,
  • De-Qu Lin,
  • Long-Xi Wang,
  • Rui Wu,
  • Jia-Ou Wang,
  • Hai-Jie Qian,
  • Kurash Ibrahim,
  • Hong-Nian Li

DOI
https://doi.org/10.1063/1.5086171
Journal volume & issue
Vol. 9, no. 4
pp. 045122 – 045122-6

Abstract

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The electronic structure of PC61BM film on clean Ag(100) and Ag(111) surfaces has been measured with photoemission spectroscopy. The interfaces are chemisorption. It is necessary to combine the two sub-interfaces model and the integer charge transfer model for thoroughly understanding the interfacial electronic structure. The electron injection barrier can then be determined without inverse photoemission measurements, and the PC61BM/Ag(111) system is found to be ohmic contact for electron transport. The analysis method should be applicable to many other organic/metal interfaces.