期刊
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
卷 16, 期 3, 页码 652-658出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2012.12.005
关键词
Zinc oxide; Nanorod; Nanoparticle; Dye-sensitized solar cell; Thermal evaporation
类别
资金
- National Natural Science Foundation of China [51172085]
Zinc oxide (ZnO) films were prepared successfully by simple thermal evaporation of zinc acetate dihydrate at low temperature onto FTO (fluorine-doped tin oxide) glass substrates coated with thin ZnO seed layer. The synthetic parameter such as temperature was found to determine the morphology of nanostructures. ZnO nanorod (NR) and nanoparticle (NP) films have been synthesized at 245 and 350 degrees C, respectively, for 6 h. The dye:sensitized solar cells (DSSCs) were fabricated using the ZnO nanostructure films as photosensitized electrodes. A maximum photoelectric conversion efficiency (PCE) of 1.56%, and short-circuit photocurrent density of 5.12 mA/cm(2) were achieved with the ZnO NP-based DSSC. The PCE increase was ascribed to the reduced recombination loss and prolonged electron lifetime according to electrochemical impedance spectroscopy (EIS). (C) 2012 Elsevier Ltd. All rights reserved.
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