Abstract
We investigated the chemical bonding states at the ZnO/CdS interface by X-ray photoelectron spectroscopy (XPS) and X-ray absorption fine structure (XAFS) measurements. We found that the octahedral ZnO6 species formed in the initial stage of the ZnO deposition from the Zn L3-edge X-ray absorption near-edge structure spectra. On the other hand, it is difficult to discuss the change of the chemical bonding states of the Zn atoms through the Zn 2p3/2 and the S 2p photoelectron spectra. In addition, we suggested that CdSO4 formed at the ZnO/CdS interface from the analysis of the O 1s photoelectron spectra. We enabled the significant investigation of the chemical bonding states at the ZnO/CdS interface by using a combination of XPS and XAFS measurements.
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