Characterization of optoelectronic properties of the ZnO nanorod array using surface photovoltage technique |
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Authors: | Yiting Liu Weifeng Liu Zengquan Hu Yongchang Sang |
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Institution: | School of Physics and Optoelectronic Technology, Dalian University of Technology, 116024, PR China |
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Abstract: | Well-aligned ZnO nanorod array, synthesized by wet chemical bath deposition (CBD) method on conductive indium-in-oxide (ITO) substrate, was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and photoluminescence (PL) spectroscopy. Surface photovoltage (SPV) technique based on a scanning Kelvin Probe system was employed to investigate the optoelectronic behavior of ZnO nanorod array. The surface photovoltage and its time-resolved evolution process are used to determine the energy level structure of the ZnO nanorod array. |
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Keywords: | Kelvin Probe Surface photovoltage ZnO Nanorod array |
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