Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Surface Modification of Zinc Oxide Nanorods with Zn-Porphyrin via Metal-Ligand Coordination for Photovoltaic Applications

  • Koo, Jae-Hong (School of Chemical Engineering and Materials Science, Chung-Ang University) ;
  • Cho, Jin-Ju (School of Chemical Engineering and Materials Science, Chung-Ang University) ;
  • Yang, Jin-Ho (School of Chemical Engineering and Materials Science, Chung-Ang University) ;
  • Yoo, Pil-J. (School of Chemical Engineering, Sungkyunkwan University) ;
  • Oh, Kyung-Wha (Department of Home Economics Education, Chung-Ang University) ;
  • Park, Ju-Hyun (School of Chemical Engineering and Materials Science, Chung-Ang University)
  • Received : 2011.11.22
  • Accepted : 2012.01.13
  • Published : 2012.02.20
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Abstract

We modify ZnO nanorods with Zn-porphyrin to obtain the improved characteristics of energy transfer, which is further investigated for the applicability to photovoltaic devices. A nitrogen heterocyclic ligand containing a thiol group is covalently grafted onto the surface of finely structured ZnO nanorods with a length of 50-250 nm and a diameter of 15-20 nm. Zn-porphyrin is then attached to the ligand molecules by the mechanism of metalligand axial coordination. The resulting energy band diagram suggests that the porphyrin-modified ZnO nanorods might provide an efficient pathway for energy transfer upon being applied to photovoltaic devices.

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