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[交流] 钙钛矿太阳能电池的聚芳族分子接触

钙钛矿太阳能电池的聚芳族分子接触

▲ 作者:Ke Zhao, Qingqing Liu et al.

▲链接:

https://www.nature.com/articles/s41586-024-07712-6

▲摘要:

在此,我们报告了一种没有杂原子取代的环绕稠合多环芳烃核心结构,它比传统的杂原子取代核心结构具有更好的载流子传输和选择性。

这种核心结构产生了相对化学惰性和结构刚性的分子接触,可以大大提高钙钛矿太阳能电池在效率和耐用性方面的性能。在不同的加速老化测试中,装置的效率高达26.1%,大大提高了使用寿命。

▲ Abstract:

Here we report a peri-fused polyaromatic core structure without heteroatom substitution that yields superior carrier transport and selectivity over conventional heteroatom-substituted core structures. This core structure produced a relatively chemically inert and structurally rigid molecular contact, which considerably improved the performance of perovskite solar cells in terms of both efficiency and durability. The champion device showed an efficiency up to 26.1% with greatly improved longevity under different accelerated-ageing tests.
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