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arXiv 1610.05166cond-mat.mtrl-sciphysics.chem-ph
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微秒,毫秒和秒:平面钙钛矿太阳能电池的动态行为解卷积

Microseconds, milliseconds and seconds: deconvoluting the dynamic behaviour of planar perovskite solar cells

Adam Pockett, Giles Eperon, Nobuya Sakai, Henry Snaith, Laurence M Peter, Petra J Cameron

摘要:

超导太阳能电池(PSC)表现为耦合的离子-电子导体与强有力的证据表明,离子环境缓和的电子-空穴复合的速率和带偏移在平面PSC。已经提出了许多模型来解释钙钛矿太阳能电池的行为,但到目前为止,还没有一个单一的模型可以解释设备的频率和时间依赖性响应。在这里,我们提出了一个简单的耦合离子电子模型,可以用来解释大幅度瞬态行为和PSC的阻抗响应。

英文摘要:

Perovskite solar cells (PSC) are shown to behave as coupled ionic-electronic conductors with strong evidence that the ionic environment moderates both the rate of electron-hole recombination and the band offsets in planar PSC. Numerous models have been presented to explain the behavior of perovskite solar cells, but to date no single model has emerged that can explain both the frequency and time dependent response of the devices. Here we present a straightforward coupled ionic-electronic model that can be used to explain the large amplitude transient behavior and the impedance response of PSC.

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