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首页> 外文期刊>Advanced energy materials >Lattice-Matching Structurally-Stable 1D@3D Perovskites toward Highly Efficient and Stable Solar Cells
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Lattice-Matching Structurally-Stable 1D@3D Perovskites toward Highly Efficient and Stable Solar Cells

机译：晶格匹配结构稳定的1D @ 3D钙钛矿面向高效稳定的太阳能电池

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The stability of perovskite solar cells (PSCs) has been identified to be the bottleneck toward their industrialization. With the aim of tackling this challenge, a 1D PbI2-bipyridine (BPy)(II) perovskite is fabricated, which is shown to be capable of in situ assembly of a 1D@3D perovskite that is promoted by a PbI2-dimethyl sulfoxide complex with a skeletal linear chain structure. The as-prepared 1D@3D perovskite is observed to demonstrate extremely high stability under external large electric fields in humid environments by means of an in situ characterization technique. This stability is associated with its well lattice-matching heterojunction structure between 1D and 3D heterojunction domains. Importantly, ion migration is alleviated through blocking of the ion-migration channels. Accordingly, the 1D@3D hybrid PSC shows a power conversion efficiency of 21.18% maintaining remarkably high long-term stability in the presence of water, illumination, and external electric fields. This rational design and microstructure study of 1D@3D perovskites provides a new paradigm that may enable higher efficiency and stability of PSCs.
机译：钙钛矿太阳能电池（PSC）的稳定性已被确定是其工业化的瓶颈。为了应对这一挑战，我们制造了一种1D PbI2-联吡啶（BPy）（II）钙钛矿，它能够原位组装由PbI2-二甲基亚砜配合物促进的1D @ 3D钙钛矿。骨架线性链结构。通过原位表征技术，观察到所制备的1D @ 3D钙钛矿在潮湿环境中的外部大电场下显示出极高的稳定性。这种稳定性与其在1D和3D异质结域之间晶格匹配的异质结结构有关。重要的是，通过阻塞离子迁移通道来减轻离子迁移。因此，在水，光照和外部电场存在的情况下，一维3D混合型PSC的功率转换效率为21.18％，可保持非常高的长期稳定性。对1D @ 3D钙钛矿的合理设计和微观结构研究提供了一种新的范例，可以使PSC的效率和稳定性更高。

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