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Dr. Fengpo Yan, Dr. Yonghao Wang, Dr. Jiye Zhang, Prof. Zhang Lin, Dr. Jinsheng Zheng and Prof. Feng Huang Schottky or Ohmic Metal–Semiconductor Contact: Influence on Photocatalytic Efficiency of Ag/ZnO and Pt/ZnO Model Systems ChemSusChem 7

Version of Record online: 4 NOV 2013 | DOI: 10.1002/cssc.201300818

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Charge! In the field of photocatalysis, metal-semiconductor heterostructures receive much attention due to efficient charge separation. However, how the charge separation occurs is still an open question. Herein, the mechanisms of photocatalysis by Ag/ZnO, with Ohmic contact, and Pt/ZnO, with Schottky contact, are compared. The charge separation process is found to be strongly influenced by the direction of built-in electric fields within the semiconductor.

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