Imperial College London
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DrEsterBuchaca-Domingo

Faculty of Natural Sciences

Strategic Research Coordinator
 
 
 
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Contact

 

+44 (0)20 7594 2667e.buchaca-domingo

 
 
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Location

 

Faculty BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Causa:2016:10.1038/ncomms12556,
author = {Causa, M and De, Jonghe-Risse J and Scarongella, M and Brauer, JC and Buchaca-Domingo, E and Moser, J-E and Stingelin, N and Banerji, N},
doi = {10.1038/ncomms12556},
journal = {Nature Communications},
title = {The fate of electron–hole pairs in polymer:fullerene blends for organic photovoltaics},
url = {http://dx.doi.org/10.1038/ncomms12556},
volume = {7},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - There has been long-standing debate on how free charges are generated in donor:acceptor blends that are used in organic solar cells, and which are generally comprised of a complex phase morphology, where intermixed and neat phases of the donor and acceptor material co-exist. Here we resolve this question, basing our conclusions on Stark effect spectroscopy data obtained in the absence and presence of externally applied electric fields. Reconciling opposing views found in literature, we unambiguously demonstrate that the fate of photogenerated electron–hole pairs—whether they will dissociate to free charges or geminately recombine—is determined at ultrafast times, despite the fact that their actual spatial separation can be much slower. Our insights are important to further develop rational approaches towards material design and processing of organic solar cells, assisting to realize their purported promise as lead-free, third-generation energy technology that can reach efficiencies over 10%.
AU  - Causa,M
AU  - De,Jonghe-Risse J
AU  - Scarongella,M
AU  - Brauer,JC
AU  - Buchaca-Domingo,E
AU  - Moser,J-E
AU  - Stingelin,N
AU  - Banerji,N
DO  - 10.1038/ncomms12556
PY  - 2016///
SN  - 2041-1723
TI  - The fate of electron–hole pairs in polymer:fullerene blends for organic photovoltaics
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/ncomms12556
UR  - http://hdl.handle.net/10044/1/39794
VL  - 7
ER  -
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