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Efficient deep blue fluorescent polymer light-emitting diodes (PLEDs) (2014)
Journal Article
Cook, J. H., Santos, J., Li, H., Al-Attar, H. A., Bryce, M. R., & Monkman, A. P. (2014). Efficient deep blue fluorescent polymer light-emitting diodes (PLEDs). Journal of Materials Chemistry C Materials for optical and electronic devices, 2(28), 5587-5592. https://doi.org/10.1039/c4tc00896k

A new series of deep blue/blue emitting co-polymers are reported. Poly(9,9-dihexylfluorene-3,6-diyl and 2,7-diyl-co-2,8-dihexyldibenzothiophene-S,S-dioxide-3,7-diyl) derivatives p(F-S) of varying composition have been synthesised. The effects of two... Read More about Efficient deep blue fluorescent polymer light-emitting diodes (PLEDs).

Competition between polaron pair formation and singlet fission observed in amorphous rubrene films (2013)
Journal Article
Jankus, V., Snedden, E., Bright, D., Arac, E., Dai, D., & Monkman, A. (2013). Competition between polaron pair formation and singlet fission observed in amorphous rubrene films. Physical review B, 87(22),

In this paper, we investigate excited state dynamics in amorphous rubrene vacuum sublimed films. We report the direct observation of singlet fission in amorphous rubrene films. We have determined the fission rate to be >2.5 x 10(12) s(-1). Simultaneo... Read More about Competition between polaron pair formation and singlet fission observed in amorphous rubrene films.

Femtosecond hot-exciton emission in a ladder-type pi-conjugated rigid-polymer nanowire (2013)
Journal Article
Dai, D., & Monkman, A. (2013). Femtosecond hot-exciton emission in a ladder-type pi-conjugated rigid-polymer nanowire. Physical review B, 87(4),

A hot exciton is usually the initial elementary excitation product of the solid phase, particularly in low-dimensional photonic materials, which is a bottleneck to all subsequent processes. Measurement of hot-exciton emission (HExEm) is a great chall... Read More about Femtosecond hot-exciton emission in a ladder-type pi-conjugated rigid-polymer nanowire.

Energy Upconversion via Triplet Fusion in Super Yellow PPV Films Doped with Palladium Tetraphenyltetrabenzoporphyrin: a Comprehensive Investigation of Exciton Dynamics (2013)
Journal Article
Jankus, V., Snedden, E. W., Bright, D. W., Whittle, V. L., Williams, J., & Monkman, A. (2013). Energy Upconversion via Triplet Fusion in Super Yellow PPV Films Doped with Palladium Tetraphenyltetrabenzoporphyrin: a Comprehensive Investigation of Exciton Dynamics. Advanced Functional Materials, 23(3), 384-393. https://doi.org/10.1002/adfm.201201284

Carbazole based polymers as hosts for blue iridium emitters: synthesis, photophysics and high efficiency PLEDs (2013)
Journal Article
Stanislovaityte, E., Simokaitiene, J., Raisys, S., Al-Attar, H., Grazulevicius, J., Monkman, A., & Jankus, V. (2013). Carbazole based polymers as hosts for blue iridium emitters: synthesis, photophysics and high efficiency PLEDs. Journal of Materials Chemistry C Materials for optical and electronic devices, 1(48), 8209-8221

This article reports the synthesis of new carbazole based polymers and their application as hosts in sky-blue polymer light emitting devices (PLEDs) with a solution-processed emitting layer doped with a cyclometalated Ir(III) complex. We systematical... Read More about Carbazole based polymers as hosts for blue iridium emitters: synthesis, photophysics and high efficiency PLEDs.

A Study of Illumination and Communication using Organic Light Emitting Diodes (2013)
Journal Article
Chun, H., Chiang, C., Monkman, A., & O'Brien, D. (2013). A Study of Illumination and Communication using Organic Light Emitting Diodes. Journal of Lightwave Technology, 31(22), 3511-3517

Organic light emitting diodes (OLEDs) are an attractive proposition for replacing large area Lambertian sources in lighting systems. Commercial devices can meet the luminance requirements for such systems, and small area high (similar to 10 MHz) band... Read More about A Study of Illumination and Communication using Organic Light Emitting Diodes.

Efficient light-emitting electrochemical cells (LECs) based on ionic iridium(III) complexes with 1,3,4-oxadiazole ligands. (2013)
Journal Article
Zhang, J., Zhou, L., Al-Attar, H., Shao, K., Wang, L., Zhu., D., …Monkman, A. (2013). Efficient light-emitting electrochemical cells (LECs) based on ionic iridium(III) complexes with 1,3,4-oxadiazole ligands. Advanced Functional Materials, 23(37), 4667-4677. https://doi.org/10.1002/adfm.201300344

Eight new iridium(III) complexes 1-8, with 1,3,4-oxadiazole (OXD) derivatives as the cyclometalated C^N ligand and/or the ancillary N^N ligands are synthesized and their electrochemical, photophysical, and solid-state light-emitting electrochemical c... Read More about Efficient light-emitting electrochemical cells (LECs) based on ionic iridium(III) complexes with 1,3,4-oxadiazole ligands..

Triplet Harvesting with 100% Efficiency by Way of Thermally Activated Delayed Fluorescence in Charge Transfer OLED Emitters. (2013)
Journal Article
Dias, F., Bourdakos, K., Jankus, V., Moss, K., Kamtekar, K., Bhalla, V., …Monkman, A. (2013). Triplet Harvesting with 100% Efficiency by Way of Thermally Activated Delayed Fluorescence in Charge Transfer OLED Emitters. Advanced Materials, 25(27), 3707-3714. https://doi.org/10.1002/adma.201300753

Organic light-emitting diodes (OLEDs) have their performance limited by the number of emissive singlet states created upon charge recombination (25%). Recently, a novel strategy has been proposed, based on thermally activated up-conversion of triplet... Read More about Triplet Harvesting with 100% Efficiency by Way of Thermally Activated Delayed Fluorescence in Charge Transfer OLED Emitters..

Fabrication of ZnO nanorod/p-GaN high-brightness UV LED by microwave-assisted chemical bath deposition with Zn(OH)(2)-PVA nanocomposites as seed layer (2013)
Journal Article
Hassan, J., Mahdi, M., Yusof, Y., Abu-Hassan, H., Hassan, Z., Al-Attar, H., & Monkman, A. (2013). Fabrication of ZnO nanorod/p-GaN high-brightness UV LED by microwave-assisted chemical bath deposition with Zn(OH)(2)-PVA nanocomposites as seed layer. Optical Materials, 35(5), 1035-1041. https://doi.org/10.1016/j.optmat.2012.12.006

Deep Blue Exciplex Organic Light-Emitting Diodes with Enhanced Efficiency; P-type or E-type Triplet Conversion to Singlet Excitons? (2013)
Journal Article
Jankus, V., Chiang, C., Dias, F., & Monkman, A. P. (2013). Deep Blue Exciplex Organic Light-Emitting Diodes with Enhanced Efficiency; P-type or E-type Triplet Conversion to Singlet Excitons?. Advanced Materials, 25(10), 1455-1459. https://doi.org/10.1002/adma.201203615

Simple trilayer, deep blue, fluorescent exciplex organic light-emitting diodes (OLEDs) are reported. These OLEDs emit from an exciplex state formed between the highest occupied molecular orbital (HOMO) of N,N′-bis(1-naphthyl)N,N′-diphenyl-1,1′-biphen... Read More about Deep Blue Exciplex Organic Light-Emitting Diodes with Enhanced Efficiency; P-type or E-type Triplet Conversion to Singlet Excitons?.

Spectroscopic Properties, Excitation, and Electron Transfer in an Anionic Water-Soluble Poly(fluorene-alt-phenylene)-perylenediimide Copolymer (2012)
Journal Article
Marques, A. T., Burrows, H. D., Sergio Seixas de Melo, J., Valente, A. J., Justino, L. L., Scherf, U., …Monkman, A. P. (2012). Spectroscopic Properties, Excitation, and Electron Transfer in an Anionic Water-Soluble Poly(fluorene-alt-phenylene)-perylenediimide Copolymer. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 116(25), 7548-7559. https://doi.org/10.1021/jp3000703

Dinuclear iridium(III) complexes of cyclometalated fluorenylpyridine ligands as phosphorescent dopants for efficient solution-processed OLEDs (2012)
Journal Article
M'hamedi, A., Batsanov, A. S., Fox, M. A., Bryce, M. R., Abdullah, K., Al-Attar, H. A., & Monkman, A. P. (2012). Dinuclear iridium(III) complexes of cyclometalated fluorenylpyridine ligands as phosphorescent dopants for efficient solution-processed OLEDs. Journal of materials chemistry, 22(27), 13529-13540. https://doi.org/10.1039/c2jm31143g