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首页> 外文期刊>ACS applied materials & interfaces >Bacteriorhodopsin Enhances Efficiency of Perovskite Solar Cells
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Bacteriorhodopsin Enhances Efficiency of Perovskite Solar Cells

机译：细菌磷脂增强钙钛矿太阳能电池的效率

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摘要

Recently, halide perovskites have upstaged decades of solar cell development by reaching power conversion efficiencies that surpass the performance of polycrystalline silicon. The efficiency improvement in the perovskite cells is related to repeated recycling between photons and electron-hole pairs, reduced recombination losses, and increased carrier lifetimes. Here, we demonstrate a novel approach toward augmenting the perovskite solar cell efficiency by invoking the Forster Resonance Energy Transfer (FRET) mechanism. FRET occurs in the near-field region as the bacteriorhodopsin (bR) protein, and perovskite has similar optical gaps. Titanium dioxide functionalized with the bR protein is shown to accelerate the electron injection from excitons produced in the perovskite layer. FRET predicts the strength of long-range excitonic transport between the perovskite and bR layers. Solar cells incorporating TiO2/bR layers are found to exhibit much higher photovoltaic performance as compared to baseline cells without bR. These results open the opportunity to develop a new class of bioperovskite solar cells with improved performance and stability.
机译：最近，哈利佩洛夫斯基纳通过达到超出多晶硅的性能的电力转换效率来进行过山的太阳能电池开发。钙钛矿细胞的效率改善与光子和电子 - 空穴对之间的重复回收有关，重组损失降低和增加的载体寿命。在这里，我们通过调用福斯特共振能量转移（FRET）机制来展示一种新的趋遍植物克里太阳能电池效率的方法。作为近场区域，作为近场区域发生近场区域（Br）蛋白，钙钛矿具有相似的光学间隙。显示用Br蛋白质官能化的二氧化钛，显示从钙钛矿层中产生的激子加速电子注射。 FRET预测钙钛矿和BR层之间的远程激发器输送的强度。发现包含TiO2 / Br层的太阳能电池与没有BR的基线细胞相比表现出更高的光伏性能。这些结果开设了开发新类生物罗夫斯基钛料太阳能电池，具有改善的性能和稳定性。

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