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Quantum Chemistry

Impact of quantized vibrations on the efficiency of interfacial charge separation in photovoltaic devices

arXiv
Authors: Soumya Bera, Nicolas Gheeraert, Simone Fratini, Sergio Ciuchi, Serge Florens

Year

2014

Paper ID

8191

Status

Preprint

Abstract Read

~2 min

Abstract Words

86

Citations

N/A

Abstract

We demonstrate that charge separation at donor-acceptor interfaces is a complex process that is controlled by the combined action of Coulomb binding for electron-hole pairs and partial relaxation due to quantized phonons. A joint electron-vibration quantum dynamical study reveals that high energy vibrations sensitively tune the charge transfer probability as a function of time and injection energy, due to polaron formation. These results have bearings for the optimization of energy transfer both in organic and quantum dot photovoltaics, as well as in biological light harvesting complexes.

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  • We demonstrate that charge separation at donor-acceptor interfaces is a complex process that is controlled by the combined action of Coulomb binding for electron-hole pairs and...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1407.5596 [2] arXiv https://arxiv.org/abs/1407.5596 [3] Publisher https://arxiv.org/abs/1407.5596

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