期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 184, 期 3, 页码 615-623出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2011.01.021
关键词
Chemical bath deposition; ZnO; Nanorod arrays; Electrical properties; Heterojunction electrode
资金
- National Science Council, Taiwan, ROC [NSC98-2622-E-239-007-CC3]
- AGI Corporation [991009]
High-transparency and high quality ZnO nanorod arrays were grown on the ITO substrates by a two-step chemical bath deposition (CBD) method. The effects of processing parameters including reaction temperature (25-95 degrees C) and solution concentration (0.01-0.1 M) on the crystal growth, alignment, optical and electrical properties were systematically investigated. It has been found that these process parameters are critical for the growth, orientation and aspect ratio of the nanorod arrays, showing different structural and optical properties. Experimental results reveal that the hexagonal ZnO nanorod arrays prepared under reaction temperature of 95 degrees C and solution concentration of 0.03 M possess highest aspect ratio of similar to 21, and show the well-aligned orientation and optimum optical properties. Moreover the ZnO nanorod arrays based heterojunction electrodes and the solid-state dye-sensitized solar cells (SS-DSSCs) were fabricated with an improved optoelectrical performance. (C) 2011 Elsevier Inc. All rights reserved.
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