https://scholars.lib.ntu.edu.tw/handle/123456789/630804
標題: | Nanoflower-like P-doped Nickel Oxide as a Catalytic Counter Electrode for Dye-Sensitized Solar Cells | 作者: | Chen, Yi Lin Huang, Yi June Yeh, Min Hsin Fan, Miao Syuan Lin, Cheng Tai Chang, Ching Cheng Ramamurthy, Vittal KUO-CHUAN HO |
關鍵字: | counter electrode | dye-sensitized solar cell | flower-like morphology | phosphorus-doped nickel oxide | rear illumination | 公開日期: | 1-十一月-2022 | 出版社: | MDPI | 卷: | 12 | 期: | 22 | 來源出版物: | Nanomaterials | 摘要: | Flower-like phosphorus-doped nickel oxide (P-NiO) is proposed as a counter electrode (CE) for dye-sensitized solar cells (DSSCs). The flower-like nickel oxide essentially serves as the matrix for the CE, which is expected to promote a two-dimensional electron transport pathway. The phosphorus is intended to improve the catalytic ability by creating more active sites in the NiO for the catalysis of triiodide ions (I3−) to iodide ions (I−) on the surface of the CE. The P-NiO is controlled by a sequencing of precursor concentration, which allows the P-NiO to possess different features. The debris aggregation occurs in the P-NiO-1, while the P-NiO-0.75 leads to the incomplete flower-like nanosheets. The complete flower-like morphology can be observed in the P-NiO-0.5, P-NiO-0.25 and P-NiO-0.1 catalytic electrodes. The DSSC with the P-NiO-0.5 CE achieves a power conversion efficiency (η) of 9.05%, which is better than that of the DSSC using a Pt CE (η = 8.51%); it also performs better than that with the Pt CE, even under rear illumination and dim light conditions. The results indicate the promising potential of the P-NiO CE to replace the expensive Pt CE. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/630804 | ISSN: | 2079-4991 | DOI: | 10.3390/nano12224036 |
顯示於: | 化學工程學系 |
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