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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Influence of the composition of hybrid perovskites on their performance in solar cells
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Influence of the composition of hybrid perovskites on their performance in solar cells

机译：钙钛矿杂化体的组成对其在太阳能电池中性能的影响

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摘要

During the last 5 years, power conversion efficiencies of hybrid (organic-inorganic) halide perovskite solar cells have shown impressive advances. This success has been partly due to the advances in thin film deposition techniques, but also due to the understanding of the chemical and structural characteristics of the hybrid organic-inorganic perovskites that make it possible to modulate their optoelectronic properties. Moreover, engineering the chemical composition of these materials still remains a powerful tool for further improvement of the photovoltaic activity of these materials. The preparation of efficient lead-free hybrid perovskites exhibiting reduced toxicity is one of the main targets. Besides environmental issues, the control of the composition of hybrid perovskites should be used to achieve a decrease in the bandgap energy, trying to extend the photoresponse of the materials into the NIR region. A third target is the long-term stability of devices, a property closely related to the negative influence of humidity and phase transition. This review focuses on showing how the modification of the composition of each of the three components (organic cation, metal and inorganic anion) of the parent hybrid halide perovskite (CH3NH3PbI3) influences the optoelectronic properties, photovoltaic efficiency and stability of these striking materials.
机译：在过去的五年中，混合（有机-无机）卤化物钙钛矿太阳能电池的功率转换效率已显示出惊人的进步。这一成功部分是由于薄膜沉积技术的进步，也归因于对有机-无机钙钛矿杂化体的化学和结构特征的理解，从而可以调节其光电性能。而且，对这些材料的化学成分进行工程设计仍然是进一步改善这些材料的光伏活性的有力工具。制备具有降低的毒性的有效的无铅杂化钙钛矿是主要目标之一。除环境问题外，还应控制杂化钙钛矿的成分，以降低带隙能量，从而将材料的光响应扩展到近红外区域。第三个目标是设备的长期稳定性，该特性与湿度和相变的负面影响密切相关。这篇综述的重点是表明母体杂化卤化物钙钛矿（CH3NH3PbI3）的三个成分（有机阳离子，金属和无机阴离子）的组成的改变如何影响这些引人注目的材料的光电性能，光伏效率和稳定性。

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