Imperial College London
Alternate

ProfessorSandrineHeutz

Faculty of Engineering, Department of Materials

Head of the Department of Materials
 
 
 
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Contact

 

+44 (0)20 7594 6727s.heutz

 
 
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Location

 

201.BRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Attwood:2021:10.1039/d1tc03933d,
author = {Attwood, M and Kim, DK and Hadden, JHL and Maho, A and Ng, W and Wu, H and Akutsu, H and White, AJP and Heutz, S and Oxborrow, M},
doi = {10.1039/d1tc03933d},
journal = {Journal of Materials Chemistry C},
pages = {17073--17083},
title = {Asymmetric N-heteroacene tetracene analogues as potential n-type semiconductors},
url = {http://dx.doi.org/10.1039/d1tc03933d},
volume = {9},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In the search for high performance n-type organic semiconductors (OSCs) a simple strategy might be substitution of aromatic CH groups for nitrogen heteroatoms. Here, we report the synthesis and characterisation of two novel N-heteroacene compounds, namely, 1,5,12-triazatetracene (TrAT1) and 2,5,12-triazatetracene (TrAT2). Their potential as n-type materials is evaluated against 5,12-diazatetracene (DAT) by UV/vis and EPR spectroscopy, cyclic voltammetry, DFT, single crystal X-ray diffraction and thin film characterisation. Increasing the number of N-heteroatoms was found to stabilise the HOMO and LUMO leading to electron affinities for TrAT1 and TrAT2 of ca. −4 eV. Both compounds were found to exhibit columns of co-facial π-stacked molecules. For TrAT1, molecules are also linked by hydrogen bonding, while the crystal structure of TrAT2 was found to be inherently disordered. Thin films of DAT, TrAT1 and TrAT2 were grown by organic molecular beam deposition (OMBD) and found to form discontinuous films, where TrAT1 exhibited a preferential orientation.
AU  - Attwood,M
AU  - Kim,DK
AU  - Hadden,JHL
AU  - Maho,A
AU  - Ng,W
AU  - Wu,H
AU  - Akutsu,H
AU  - White,AJP
AU  - Heutz,S
AU  - Oxborrow,M
DO  - 10.1039/d1tc03933d
EP  - 17083
PY  - 2021///
SN  - 2050-7526
SP  - 17073
TI  - Asymmetric N-heteroacene tetracene analogues as potential n-type semiconductors
T2  - Journal of Materials Chemistry C
UR  - http://dx.doi.org/10.1039/d1tc03933d
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000722056900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://pubs.rsc.org/en/content/articlelanding/2021/TC/D1TC03933D
UR  - http://hdl.handle.net/10044/1/93333
VL  - 9
ER  -
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