Absorption and photoluminescence spectra of organic solar cells based on P3HT:PCBM and P3HT:ITIC are studied with simultaneous monitoring of the photovoltaic parameters. Characteristic changes of the optical properties of these devices that are related to their performance are explored. A direct correlation is established between the changes in the photovoltaic parameters and the absorption and photoluminescence spectra over time.

中文翻译：

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P3HT：PCBM和P3HT：ITIC有机太阳能电池降解与其光谱变化的相关性

研究了基于P3HT：PCBM和P3HT：ITIC的有机太阳能电池的吸收光谱和光致发光光谱，同时监测了光伏参数。探索了与它们的性能有关的这些器件的光学特性的特征变化。在光电参数的变化与吸收和光致发光光谱随时间的变化之间建立了直接的相关性。