Imperial College London

ProfessorThomasAnthopoulos

Faculty of Natural SciencesDepartment of Physics

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 6669thomas.anthopoulos Website

 
 
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Assistant

 

Mrs Carolyn Dale +44 (0)20 7594 7579

 
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Location

 

1111Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Fei:2018:10.1002/adma.201705209,
author = {Fei, Z and Eisner, FD and Jiao, X and Azzouzi, M and Röhr, JA and Han, Y and Shahid, M and Chesman, ASR and Easton, CD and McNeill, CR and Anthopoulos, TD and Nelson, J and Heeney, M},
doi = {10.1002/adma.201705209},
journal = {Advanced Materials},
title = {An alkylated indacenodithieno[3,2-b]thiophene-based nonfullerene acceptor with high crystallinity exhibiting single junction solar cell efficiencies greater than 13% with low voltage losses},
url = {http://dx.doi.org/10.1002/adma.201705209},
volume = {30},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - A new synthetic route, to prepare an alkylated indacenodithieno[3,2-b]thiophene-based nonfullerene acceptor (C8-ITIC), is reported. Compared to the reported ITIC with phenylalkyl side chains, the new acceptor C8-ITIC exhibits a reduction in the optical band gap, higher absorptivity, and an increased propensity to crystallize. Accordingly, blends with the donor polymer PBDB-T exhibit a power conversion efficiency (PCE) up to 12.4%. Further improvements in efficiency are found upon backbone fluorination of the donor polymer to afford the novel material PFBDB-T. The resulting blend with C8-ITIC shows an impressive PCE up to 13.2% as a result of the higher open-circuit voltage. Electroluminescence studies demonstrate that backbone fluorination reduces the energy loss of the blends, with PFBDB-T/C8-ITIC-based cells exhibiting a small energy loss of 0.6 eV combined with a high JSCof 19.6 mA cm-2.
AU - Fei,Z
AU - Eisner,FD
AU - Jiao,X
AU - Azzouzi,M
AU - Röhr,JA
AU - Han,Y
AU - Shahid,M
AU - Chesman,ASR
AU - Easton,CD
AU - McNeill,CR
AU - Anthopoulos,TD
AU - Nelson,J
AU - Heeney,M
DO - 10.1002/adma.201705209
PY - 2018///
SN - 0935-9648
TI - An alkylated indacenodithieno[3,2-b]thiophene-based nonfullerene acceptor with high crystallinity exhibiting single junction solar cell efficiencies greater than 13% with low voltage losses
T2 - Advanced Materials
UR - http://dx.doi.org/10.1002/adma.201705209
UR - https://www.ncbi.nlm.nih.gov/pubmed/29315933
UR - http://hdl.handle.net/10044/1/57318
VL - 30
ER -