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Synthesis, Characterizations, and Properties of a P3HTHemin Covalent System for Solar Energy Conversions

机译:用于太阳能转换的P3HTHemin共价体系的合成,表征和性质

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Organic solar cells based on conjugated materials have widely been studied as potential renewable and low-cost alternatives for future solar energy conversions. The power conversion efficiency (PCE) of the best organic solar cells-bulk heterojunction (BHJ) cell reached to about 10%. However, there is room for improvements. In this study, we intend to address the critical “photon loss” problem and the germinate charge carriers recombination problem via an energy level matched dye molecular units sensitized polymer approach, i.e., a “three-component” approach. Specifically, a covalent P3HT-Hemin system was synthesized and characterized successfully via esterification between HO/HOP3HT and Hemin. The optoelectronic performance of P3HT-Hemin/PCBM cell is improved over the corresponding simple blend system, and this can be attributed to both improved photon capture and reduced charge recombination.
机译:基于共轭材料的有机太阳能电池已被广泛研究为未来太阳能转换的潜在可再生和低成本替代品。最佳有机太阳能电池-体异质结(BHJ)电池的功率转换效率(PCE)达到约10%。但是,仍有改进的空间。在这项研究中,我们打算通过能级匹配的染料分子单元敏化聚合物方法(即“三组分”方法)解决关键的“光子损失”问题和发芽的电荷载流子重组问题。具体而言,合成了共价P3HT-Hemin系统,并通过HO / HOP3HT和Hemin之间的酯化反应成功表征了该系统。与相应的简单混合系统相比,P3HT-Hemin / PCBM电池的光电性能得到了改善,这可以归因于改善的光子捕获和减少的电荷重组。

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