Robert Wawrzinek
Orange-Red-Light-Emitting Field-Effect Transistors Based on Phosphorescent Pt(II) Complexes with Area Emission
Wawrzinek, Robert; Muhieddine, Khalid; Ullah, Mujeeb; Koszo, Peter B.; Shaw, Paul E.; Grosjean, Arnaud; Maasoumi, Fatemeh; Stoltzfus, Dani M.; Clegg, Jack K.; Burn, Paul L.; Namdas, Ebinazar B.; Lo, Shih-Chun
Authors
Khalid Muhieddine
Mujeeb Ullah
Peter B. Koszo
Paul E. Shaw
Arnaud Grosjean
Fatemeh Maasoumi
Dani M. Stoltzfus
Jack K. Clegg
Paul L. Burn
Ebinazar B. Namdas
Shih-Chun Lo
Contributors
Dr Mujeeb Chaudhry mujeeb.u.chaudhry@durham.ac.uk
Other
Abstract
Two new heteroleptic Pt(II) complexes bearing an n-hexyloxy substituted phenyllepidine-based ligand and either a picolinate (pic) or acetylacetonate (acac) coligand are synthesized for use in organic light-emitting field-effect transistors (LEFETs). Both compounds are obtained in good yields via a short and straightforward synthetic route. It is found that while both Pt(II) complexes show good chemical stability and solubility, the coligand affects the photoluminescence quantum yield and crystal packing of the complexes. Although aggregate induced phosphorescence enhancement is not observed, it is found that high concentrations of the emitters in a poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] host lead to improved charge injection in hybrid LEFETs. LEFETs with area emission, high ON/OFF ratios (>106) and mobilities (≈1.3 cm2 V−1 s−1), and external quantum efficiencies of up to 0.1% at the highest brightness of 855 cd m−2 are demonstrated.
Citation
Wawrzinek, R., Muhieddine, K., Ullah, M., Koszo, P. B., Shaw, P. E., Grosjean, A., …Lo, S. (2016). Orange-Red-Light-Emitting Field-Effect Transistors Based on Phosphorescent Pt(II) Complexes with Area Emission. Advanced Optical Materials, 4(11), 1867-1874. https://doi.org/10.1002/adom.201600460
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 9, 2016 |
Online Publication Date | Aug 16, 2016 |
Publication Date | 2016-11 |
Deposit Date | Apr 13, 2017 |
Journal | Advanced Optical Materials |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 4 |
Issue | 11 |
Pages | 1867-1874 |
DOI | https://doi.org/10.1002/adom.201600460 |
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