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Work Package 4: Organic-inorganic hybrid interfaces

WP4: Organic-inorganic hybrid interfaces-Spin triplet excitons for photovoltaics (Lead: Hugo Bronstein)

 

Splitting of spin-singlet excitons into two spin-triplet excitons each of half the singlet energy (‘singlet fission’) provide a very efficient means to down-convert high energy visible photons to near-IR photon pairs that may be then harvested in a semiconductor with near-IR bandgap.


Shockley-Queisser efficiency limit can potentially be overcome.


Our aim is to boost the efficiency of standard silicon solar cells using an add-on layer to double the current collected from green and blue photons.

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Singlet fission PV schematic

Link to detailed presentation

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