研究目的
Investigating the impact of electron–phonon coupling on the quantum yield of photovoltaic devices, focusing on the charge carriers’ separation mechanism in organic solar cells.
研究成果
The charge separation yield in organic photovoltaic devices is subtly controlled by the interplay of Coulombic confinement and coherent electron–phonon coupling. The methodology developed provides spectral information to interpret the results and rationalize the oscillatory behavior of the charge separation yield, applicable to other light harvesting systems with coupling to high-frequency vibrational modes.
研究不足
The study assumes a single intramolecular mode of vibration, a fixed hole in the interface, and considers the model at zero temperature. It also focuses on momentum average treatment, neglecting inelastic processes, and does not treat the effect of an external varying voltage.
