Bismuth oxide nanoplates-based efficient DSSCs: Influence of ZnO surface passivation layer

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• 作者：Shoyeb Mohamad F. Shaikh ; Gul Rahman ; Rajaram S. Mane ; Oh-Shim Joo
• 关键词：Dye sensitized solar cells ; Bi2O3 nanoplates ; Structural and morphological studies ; IPCE ; Impedance spectroscopy
• 刊名：Electrochimica Acta
• 出版年：30 November, 2013
• 年：2013
• 卷：111
• 期：Complete
• 页码：593-600
• 全文大小：2562 K

文摘

For the first time, bismuth oxide (Bi₂O₃) nanoplates synthesized by single-step chemical method were envisaged as photoanodes in dye-sensitized solar cells. The structural elucidation demonstrated tetragonal structure with a predominant 尾-Bi₂O₃. The power conversion efficiency (1%) of Bi₂O₃ nanoplates-based dye-sensitized solar cells was enhanced up to 50% when decorated with zinc oxide thin layer (ZnO). The best performing electrode showed 24% incident photon-to-current conversion efficiency. This high DSSC performance of Bi₂O₃-ZnO photoanode is attributed to the increased electron transportation due to the suppression of recombination centers by ZnO passivation layer.