Dye-Sensitized Solar Cells Composed of Well-Aligned ZnO Nanorod Array Grown with Chemical Bath Deposition Method as the Photo-Electrode

作者：Kim Young Rock; Park Ji Young; Lee Do Kyung; Ahn Kwang Soon; Kim Jae Hong^*

来源：Molecular Crystals and Liquid Crystals, 2014, 597(1): 120-127.

DOI：10.1080/15421406.2014.932255

• ZnO nanorod array
• photovoltaic performance
• two-step chemical deposition method
• dye-sensitized solar cell

Well-aligned ZnO nanorod arrays were prepared at different deposition times to determine the correlation between the length of the photoelectrodes and the photovoltaic performance in dye-sensitized solar cells. The length of the ZnO photoelectrode was controlled to 1.2, 2.7 and 4.0 mu m by the deposition time. The DSSCs composed of the longer ZnO nanorods showed much better photovoltaic performance due to the enhanced amount of dyes adsorbed and electron injection, as determined by the intrinsic photon-to-current efficiency and electrochemical impedance spectroscopy. The photon-to-current efficiency of the DSSC containing ZnO photoelectrode was considered with the aspect of the length of ZnO nanorods.

• 出版日期2014-7-3