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Ultrafast energy transfer dynamics within photovoltaic materials:

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Following the introduction of expensive silicon-based solar cells utilized in spacecrafts in 1960's, low-cost dye-sensitized solar cells and organic/inorganic thin-film/bulk hetero-junction solar cells have been developed for past few decades. However the sensitivity of these inexpensive solar cells has so far been quite low (~10%) compared with natural light-harvesting systems. Using ultrafast two-dimensional coherent spectroscopy, we are interested in understanding energy and charge transfer dynamics within these novel synthetic complexes.

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What are the dynamical bottle-necks in solar cells? and Does (quantum) coherence has any role in artificial analogs?