Transport & Morphology - Effect on Nongeminate Recombination in Organic Solar Cells (TEMET NOSCE)

虽然近年来有机光伏发电的效率不断提高，但主要损失机制的几个基本方面，即非生殖重组，仍然不清楚。TEMET NOSCE项目的目的是了解非消子复合中电荷输运的不同方面的作用及其与光活性层形态的关系。因此，我们计划在可比较的实验条件下，在许多系统变化的样品中测量复合率、载流子浓度、电子和空穴迁移率。这些测量与使用先进的x射线技术对这些样品活性层形态的详细研究相辅相成。然后将重组和形态表征结合在动力学蒙特卡罗模拟中，以测试和开发新的非遗传重组物理模型。这种多方法的方法将为基本理解有机光伏电池的性能、性质和形态之间的关系提供基础。

While organic photovoltaics have experienced continued efficiency improvements in recent years, several fundamental aspects of the dominant loss mechanism, nongeminate recombination, are still not understood. The aim of the TEMET NOSCE project is to understand the role of the different aspects of charge transport in nongeminate recombination and their relationship to the morphology of the photoactive layer. Therefore, we plan to measure the recombination rate, charge carrier concentration, electron and hole mobility in a number of systematically varied samples under comparable experimental conditions. These measurements are complemented with a detailed study of the morphology of the active layer of these samples with advanced X-ray techniques. The recombination and morphology characterizations will then be combined in kinetic Monte Carlo simulations to test and develop new physical models for nongeminate recombination. This multi-methodological approach will provide the basis for a fundamental understanding of the relationship between performance, properties, and morphology in organic photovoltaics.