Imperial College London
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Dr Florian Glöcklhofer

Faculty of Natural Sciences, Department of Chemistry

Visiting Researcher
 
 
 
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Contact

 

f.glocklhofer Website

 
 
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Location

 

Molecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kafourou:2021:10.1002/ange.202013625,
author = {Kafourou, P and Park, B and Luke, J and Tan, L and Panidi, J and Glöcklhofer, F and Kim, J and Anthopoulos, TD and Kim, J and Lee, K and Kwon, S and Heeney, M},
doi = {10.1002/ange.202013625},
journal = {Angewandte Chemie},
pages = {6035--6042},
title = {Onestep sixfold cyanation of benzothiadiazole acceptor units for airstable highperformance ntype organic fieldeffect transistors},
url = {http://dx.doi.org/10.1002/ange.202013625},
volume = {133},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Reported here is a new high electron affinity acceptor end group for organic semiconductors, 2,1,3benzothiadiazole4,5,6tricarbonitrile (TCNBT). An ntype organic semiconductor with an indacenodithiophene (IDT) core and TCNBT end groups was synthesized by a sixfold nucleophilic substitution with cyanide on a fluorinated precursor, itself prepared by a direct arylation approach. This onestep chemical modification significantly impacted the molecular properties: the fluorinated precursor, TFBT IDT, a poor ambipolar semiconductor, was converted into TCNBT IDT, a good ntype semiconductor. The electrondeficient end group TCNBT dramatically decreased the energy of the highest occupied and lowest unoccupied molecular orbitals (HOMO/LUMO) compared to the fluorinated analogue and improved the molecular orientation when utilized in ntype organic fieldeffect transistors (OFETs). Solutionprocessed OFETs based on TCNBT IDT exhibited a chargecarrier mobility of up to μe≈0.15cm2 V−1 s−1 with excellent ambient stability for 100hours, highlighting the benefits of the cyanated end group and the synthetic approach.
AU  - Kafourou,P
AU  - Park,B
AU  - Luke,J
AU  - Tan,L
AU  - Panidi,J
AU  - Glöcklhofer,F
AU  - Kim,J
AU  - Anthopoulos,TD
AU  - Kim,J
AU  - Lee,K
AU  - Kwon,S
AU  - Heeney,M
DO  - 10.1002/ange.202013625
EP  - 6042
PY  - 2021///
SN  - 0044-8249
SP  - 6035
TI  - Onestep sixfold cyanation of benzothiadiazole acceptor units for airstable highperformance ntype organic fieldeffect transistors
T2  - Angewandte Chemie
UR  - http://dx.doi.org/10.1002/ange.202013625
UR  - https://onlinelibrary.wiley.com/doi/10.1002/ange.202013625
UR  - http://hdl.handle.net/10044/1/87969
VL  - 133
ER  -
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