| 锌卟啉自组装在染料敏化太阳能电池中的应用 |
| Self-Assembly with Zinc Porphyrin Antenna for Dye-Sensitized Solar Cells |
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| 摘要: 制备了2种锌卟啉天线分子P2与P3，并通过自组装的方法成功地将这些天线分子应用到了染料敏化太阳能电池之中。与传统的D-π-A结构的染料相比，这种策略显示出了明显的优势：可以避免复杂的合成步骤，还可以通过调节天线分子和锚固基团的结构去改善染料的光子捕获能力并减少电荷复合行为。当4-吡啶-4-基苯甲酸（A）作为锚固基团时，经过分子自组装之后，基于A-P2的电池器件显示出了1.68%的转换效率，开路电压为526 mV，短路电流密度为5.39 mA·cm-2，这充分说明了自组装策略在染料敏化太阳能电池中得到了很好的应用。而基于A-P3的电池器件能量转换效率只有0.79%，这可能主要是因为天线分子P3较大的位阻减小了染料吸附量的原因造成的。我们另外也测试比较了它们在光学、电化学、光伏性能等方面的差异。 |
| 关键词: 染料敏化太阳能电池 锌卟啉 自组装 天线分子 |
| 基金项目: 国家自然科学基金（No.21701060）、常州科技计划（No.CJ20190079）、江苏省教育厅项目（No.17KJB150015，18KJA150003）。 |
| Abstract: Two antenna molecules zinc porphyrin P2, P3 were prepared, and these antenna molecules have been successfully used in DSSCs (dye-sensitized solar cells) through supramolecular self-assembly. Compared with traditional D-π-A structure dyes, this strategy shows obvious advantages. This method can avoid complex synthesis steps, the light-harvesting ability of dyes can be improved and charge recombination can be reduced by adjusting the antenna molecules and anchoring groups. When 4-pyrid-4-ylbenzoic acid (A) was used as the anchoring group, after supramolecular self-assembly, the device of A-P2 displayed a PCE (power conversion efficiency) of 1.68%, and the Voc was 526 mV, the Jsc was 5.39 mA·cm-2. This indicates that the supramolecular self-assembly strategy has been successfully applied in DSSC. The device of A-P3 displayed the PCE of 0.79%, which is mainly due to the lower amount of dye loading. In addition, the optical properties, electrochemical properties, photovoltaic performance were also studied. |
| Keywords: dye-sensitized solar cells zinc porphyrin self-assembly antenna molecule |
| 投稿时间：2019-04-25 修订日期：2019-09-18 |
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| 贾海浪,彭智杰,李珊珊,龚炳泉,关明云.锌卟啉自组装在染料敏化太阳能电池中的应用[J].无机化学学报,2019,35(12):2337-2345. |
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