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XPS Research of ZnO Thin Films Grown by RF Reactive Magnetron Sputtering

LI Wan-cheng, ZHANG Yuan-tao, DU Guo-tong, YANG Shu-ren, WANG Tao   

  1. College of Electronic Science and Engineering, State Key Laboratory on Integrated Optoelectronics,Jilin University, Changchun 130023, China
  • Received:2003-05-21 Revised:1900-01-01 Online:2003-10-26 Published:2003-10-26
  • Contact: LI Wan-cheng

Abstract: A ZnO thin film was grown on substrate Si by RF reactive magnetron sputtering. The X-ray diffraction (XRD) pattern of the sample shows a sharp diffraction peak for ZnO(002), which indicates that as-sputtered film is highly c-axis oriented. In the experiment, we made the profile of depth, measured ZnO in the various depths, and did qualitative and quantitative calculation. The results indicate the sample is uniform unitary phase consistent the positive stoichiometric ratio before etch reaching the interface, which shows this method could be employed to grow films well. But on the interface, the chemical shift of Zn Auger modify shape, the change of Zn Auger peak shape, the ratio of Zn2p3/2 and ZnLMM peaks integral a reas, the asymmetry of Si2p peak all show the effect of forming t he bond on the interface of Si and ZnO. And n-Si is changed into p-Si on the int erface.

Key words: thin film, XPS, interface

CLC Number: 

  • O781