Imperial College London
Alternate

Professor David J. Payne

Faculty of Engineering, Department of Materials

Professor of Materials Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 2585d.payne Website

 
 
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Location

 

2.09Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wijeyasinghe:2018:10.1002/adfm.201707319,
author = {Wijeyasinghe, N and Tsetseris, L and Regoutz, A and Sit, WY and Fei, Z and Du, T and Wang, X and Mclachlan, MA and Vourlias, G and Patsalas, PA and Payne, DJ and Heeney, M and Anthopoulos, TD},
doi = {10.1002/adfm.201707319},
journal = {Advanced Functional Materials},
title = {Copper (I) selenocyanate (CuSeCN) as a novel hole-transport layer for transistors, organic solar cells, and light-emitting diodes},
url = {http://dx.doi.org/10.1002/adfm.201707319},
volume = {28},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The synthesis and characterization of copper (I) selenocyanate (CuSeCN) and its application as a solution-processable hole-transport layer (HTL) material in transistors, organic light-emitting diodes, and solar cells are reported. Density-functional theory calculations combined with X-ray photoelectron spectroscopy are used to elucidate the electronic band structure, density of states, and microstructure of CuSeCN. Solution-processed layers are found to be nanocrystalline and optically transparent ( > 94%), due to the large bandgap of ≥3.1 eV, with a valence band maximum located at -5.1 eV. Hole-transport analysis performed using field-effect measurements confirms the p-type character of CuSeCN yielding a hole mobility of 0.002 cm 2 V -1 s -1 . When CuSeCN is incorporated as the HTL material in organic light-emitting diodes and organic solar cells, the resulting devices exhibit comparable or improved performance to control devices based on commercially available poly(3,4-ethylenedioxythiophene):polystyrene sulfonate as the HTL. This is the first report on the semiconducting character of CuSeCN and it highlights the tremendous potential for further developments in the area of metal pseudohalides.
AU  - Wijeyasinghe,N
AU  - Tsetseris,L
AU  - Regoutz,A
AU  - Sit,WY
AU  - Fei,Z
AU  - Du,T
AU  - Wang,X
AU  - Mclachlan,MA
AU  - Vourlias,G
AU  - Patsalas,PA
AU  - Payne,DJ
AU  - Heeney,M
AU  - Anthopoulos,TD
DO  - 10.1002/adfm.201707319
PY  - 2018///
SN  - 1616-301X
TI  - Copper (I) selenocyanate (CuSeCN) as a novel hole-transport layer for transistors, organic solar cells, and light-emitting diodes
T2  - Advanced Functional Materials
UR  - http://dx.doi.org/10.1002/adfm.201707319
UR  - http://hdl.handle.net/10044/1/57020
VL  - 28
ER  -
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