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Ionic Iridium(III) Complexes with Bulky Side Groups for Use in Light Emitting Cells: Reduction of Concentration Quenching (2009)
Journal Article
Rothe, C., Chiang, C., Jankus, V., Abdullah, K., Zeng, X., Jitchati, R., …Monkman, A. (2009). Ionic Iridium(III) Complexes with Bulky Side Groups for Use in Light Emitting Cells: Reduction of Concentration Quenching. Advanced Functional Materials, 19(13), 2038-2044. https://doi.org/10.1002/adfm.200801767

Here, the photophysics and performance of single-layer light emitting cells (LECs) based on a series of ionic cyclometalated Ir(III) complexes of formulae [Ir(ppy)(2)(bpy)]+PF6- and [Ir(ppy)(2)(phen)]+PF6- where ppy, bpy, and phen are 2-phenylpyridin... Read More about Ionic Iridium(III) Complexes with Bulky Side Groups for Use in Light Emitting Cells: Reduction of Concentration Quenching.

Exploiting a Dual-Fluorescence Process in Fluorene-Dibenzothiophene-S,S-dioxide Co-Polymers to Give Efficient Single Polymer LEDs with Broadened Emission. (2009)
Journal Article
King, S., Perepichka, I., Perepichka, I., Dias, F., Bryce, M., & Monkman, A. (2009). Exploiting a Dual-Fluorescence Process in Fluorene-Dibenzothiophene-S,S-dioxide Co-Polymers to Give Efficient Single Polymer LEDs with Broadened Emission. Advanced Functional Materials, 19(4), 586-591. https://doi.org/10.1002/adfm.200801237

A description of the synthesis of random (9,9-dioctylfluorene-2,7-diyl)-dibenzothiophene-S,S-dioxide-3,7-diyl) co-polymers (p(F-S)x) by palladium- catalyzed Suzuki cross-coupling polymerization where the feed ration of the latter is varied from 2 to... Read More about Exploiting a Dual-Fluorescence Process in Fluorene-Dibenzothiophene-S,S-dioxide Co-Polymers to Give Efficient Single Polymer LEDs with Broadened Emission..

Exciton Diffusion in Polyfluorene Copolymer Thin Films: Kinetics, Energy Disorder and Thermally Assisted Hopping (2009)
Journal Article
Dias, F., Kamtekar, K., Cazati, T., Williams, G., Bryce, M., & Monkman, A. (2009). Exciton Diffusion in Polyfluorene Copolymer Thin Films: Kinetics, Energy Disorder and Thermally Assisted Hopping. ChemPhysChem, 10(12), 2096-2104. https://doi.org/10.1002/cphc.200900112

A series of {(9,9-dioctylfluorene)(0.7-x)-(dibenzothiophene-S,S-dioxide)(0.3)-[4,7-b is(2-thienyl)-2,1,3-benzothiadiazole](x)} (PFS30-TBTx), where x represents the minor percentage of the red emitter 4,7-bis(2-thienyl)-2,1,3-benzothiadiazole (TBT) ra... Read More about Exciton Diffusion in Polyfluorene Copolymer Thin Films: Kinetics, Energy Disorder and Thermally Assisted Hopping.

Singlet Excitation Energy Harvesting and Triplet Emission in the Self-Assembled System Poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} copolymer/tris(bipyridyl)ruthenium(II) in Aqueous Solution (2009)
Journal Article
Burrows, H., Fonseca, S., Dias, F., de Melo, J., Monkman, A., Scherf, U., & Pradhan, S. (2009). Singlet Excitation Energy Harvesting and Triplet Emission in the Self-Assembled System Poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} copolymer/tris(bipyridyl)ruthenium(II) in Aqueous Solution. Advanced Materials, 21(10-11), 1155-1159. https://doi.org/10.1002/adma.200801713

Efficient Intramolecular Charge Transfer in Oligoyne-Linked Donor–π–Acceptor Molecules (2009)
Journal Article
Pålsson, L., Wang, C., Batsanov, A., King, S., Beeby, A., Monkman, A., & Bryce, M. (2009). Efficient Intramolecular Charge Transfer in Oligoyne-Linked Donor–π–Acceptor Molecules. Chemistry - A European Journal, 16(5), 1470-1479. https://doi.org/10.1002/chem.200902099

Studies are reported on a series of triphenylamine–(C[TRIPLE BOND]C)n–2,5-diphenyl-1,3,4-oxadiazole dyad molecules (n=1–4, 1, 2, 3 and 4, respectively) and the related triphenylamine-C6H4–(C[TRIPLE BOND]C)3–oxadiazole dyad 5. The oligoyne-linked D–π–... Read More about Efficient Intramolecular Charge Transfer in Oligoyne-Linked Donor–π–Acceptor Molecules.

Energy Transfer in Nanostructured Films Containing Poly(p-phenylene vinylene) and Acceptor Species (2009)
Journal Article
Postacchini, B., Zucolotto, V., Dias, F., Monkman, A., & Oliveira Jr, O. (2009). Energy Transfer in Nanostructured Films Containing Poly(p-phenylene vinylene) and Acceptor Species. Journal of Physical Chemistry C, 113(23), 10303-10306. https://doi.org/10.1021/jp9000785

The combination of luminescent polymers and suitable energy-accepting materials may lead to a molecular-level control of luminescence in nanostructured films. In this study, the properties of layer-by-layer (LbL) films of poly(p-phenylene vinylene) (... Read More about Energy Transfer in Nanostructured Films Containing Poly(p-phenylene vinylene) and Acceptor Species.

The photophysics of singlet, triplet, and degradation trap states in 4,4-N,N-'-dicarbazolyl-1,1(')-biphenyl (2009)
Journal Article
Jankus, V., Winscom, C., & Monkman, A. (2009). The photophysics of singlet, triplet, and degradation trap states in 4,4-N,N-'-dicarbazolyl-1,1(')-biphenyl. The Journal of Chemical Physics, 130(7), Article 074501. https://doi.org/10.1063/1.3077163

In this paper we report the results of optical characterization of 4,4-N,N-'-dicarbazolyl-1,1(')-biphenyl (CBP), known as a host material for phosphorescent light emitting devices. Using absorption, steady state, and time-resolved spectroscopy, we ex... Read More about The photophysics of singlet, triplet, and degradation trap states in 4,4-N,N-'-dicarbazolyl-1,1(')-biphenyl.

The Influence of Alkyl-Chain Length on Beta-Phase Formation in Polyfluorenes. (2009)
Journal Article
Bright, D., Dias, F., Galbrecht, F., Scherf, U., & Monkman, A. (2009). The Influence of Alkyl-Chain Length on Beta-Phase Formation in Polyfluorenes. Advanced Functional Materials, 19(1), 67-73. https://doi.org/10.1002/adfm.200800313

Di-n-alkyl substituted polyfluorenes with alkyl chain lengths of 6, 7, 8, 9, and 10 carbon atoms (PF6, PF7, PF8, PF9, and PF10) are studied in dilute solution in MCH using optical spectroscopy. Beta-phase is formed upon cooling in solutions (∼ 7 µg m... Read More about The Influence of Alkyl-Chain Length on Beta-Phase Formation in Polyfluorenes..