Journal of the Korean Physical Society

, Volume 73, Issue 10, pp 1546–1549 | Cite as

In-situ XPS Study of Core-levels of ZnO Thin Films at the Interface with Graphene/Cu

  • Jinsung Choi
  • Ranju JungEmail author


We have investigated core-levels of ZnO thin films at the interface with the graphene on Cu foil using in-situ X-ray Photoelectron Spectroscopy (XPS). Spectral evolution of C 1s, Zn 2p, and O 1s are observed in real time during RF sputtering deposition. We found binding energy (BE) shifts of Zn 2p and ‘Zn−O’ state of O 1s depending on ZnO film thickness. Core-levels BE shifts of ZnO will be discussed on the basis of electron transfer at the interface and it may have an important role in the electronic transport property of the ZnO/graphene-based electronic device.


Graphene ZnO In-situ XPS Interface Thin film Electron transfer Dipole 


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Copyright information

© The Korean Physical Society 2018

Authors and Affiliations

  1. 1.Department of Electrical and Biological PhysicsKwangwoon UniversitySeoulKorea

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