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Singlet Exciton Fission

Elucidating the quantum mechanical dynamics underlying the process of Singlet Exciton Fission in one of our main research goals. This could hold the key to a new generation of highly efficient photovoltaics (PVs)


The quantum mechanical mechanism underlying singlet fission is very active area of research. Recently, we have made several breakthroughs in this area using novel ultrafast spectroscopy techniques. Our results have demonstrated how coupling of electronic and nuclear degrees of freedom in molecular systems can give rise extremely fast and efficient process on sub 100s timescales. 

Singlet fission offers a rich test bend to understand the fundamental limits of excitonic process in molecular semiconductor. These results are opening up new avenues to understand and control the properties of molecular semiconductors. 

Schematic of singlet fission via a conical intersection

Schematic of singlet fission via a conical intersection. Figure credit - Christoph Schnedermann 


Rao et al, Nature Reviews Materials (2017), Read more 

Stern et al, Nature Chemistry (2017), Read more

Bakulin et al. Nature Chemistry (2016). read more here

Weiss et al. Nature Physics (2016), read more 

Musser et al. Nature Physics (2015), read more here




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2 Postdoc Positions Open

Mar 02, 2018

Two postdoc positions, one in ultrafast spectroscopy and the other to work on Colloidal Nanocrystals are available. Please see the Join the Group tab for details

Paper accepted to Nature Communications

Nov 15, 2017

Matt and Alex's paper on the role of order in the charge separation process in OPVs is accepted to Nature Communications.

Paper accepted to ASC Nano

Oct 24, 2017

Limeng's paper on exciton-phonon coupling in hybrid perovskite quantum wells is accepted to ACS NANO.

Paper published in Nature Reviews

Oct 05, 2017

Our review of Singlet Fission is published in Nature Reviews Materials

ERC Starter Grant

Sep 18, 2017

Our project SOLARX is funded by the ERC.

Paper published in Nature Chemistry

Sep 11, 2017

Hannah and Alex's paper on ultrafast 'endothermic' singlet fission is published in Nature Chemistry.

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