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首页> 外文期刊>Journal of nano research >Variable Rank Differential Smoothing Technique for Electron Lifetime Calculation in Dye-Sensitized Solar Cells
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Variable Rank Differential Smoothing Technique for Electron Lifetime Calculation in Dye-Sensitized Solar Cells

机译：染料敏化太阳能电池电子寿命的可变秩差分平滑技术

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摘要

The free electron lifetime is a key factor in determining the performance of a dye-sensitized solar cells (DSCs). Open-circuit voltage-decay (OCVD) suggested by Zaban is a useful technique to provide continuous reading of the electron lifetime as a function of device's open-circuit voltage (Voc), but the data processing has never been studied in order to get high accuracy electron lifetime value from the high resolution decaying voltage data. In this manuscript, we introduce the variable rank differential smoothing (VRDS) technique in the electron lifetime data processing. We find it can lessen data loss and give highly accurate electron lifetime value in the range of Voc decaying. We also get the effective recombination order values based on the VRDS technique, which indicate different potential processes due the two different values. These results show the detail kinetics information and microscopic device physic characteristics, which are very important to understand the device working mechanism and meaningful for realizing higher performance solar cells.
机译：自由电子寿命是决定染料敏化太阳能电池（DSC）性能的关键因素。 Zaban提出的开路电压衰减（OCVD）是一种有用的技术，它可以提供连续读取电子寿命的函数，该电子寿命是器件开路电压（Voc）的函数，但从未研究过数据处理以求获得高电压。来自高分辨率衰减电压数据的精确电子寿命值。在本文中，我们在电子寿命数据处理中引入了可变秩差分平滑（VRDS）技术。我们发现它可以减少数据丢失，并在Voc衰减范围内提供高度准确的电子寿命值。我们还基于VRDS技术获得了有效的重组顺序值，该值表明由于两个不同的值而导致的潜在过程不同。这些结果显示了详细的动力学信息和微观的器件物理特性，这对于理解器件的工作机理非常重要，对于实现更高性能的太阳能电池也具有重要意义。

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