Outputs (280)

Purcell effect investigation in organic Tamm plasmon structures (2018)
Journal Article
Morozov, K., Ivanov, K., Selenin, N., Mikhrin, S., Sa Pereira, D. D., Menelaou, C., Monkman, A., & Kaliteevski, M. (2018). Purcell effect investigation in organic Tamm plasmon structures. Journal of Physics: Conference Series, 1135, Article 012082. https://doi.org/10.1088/1742-6596/1135/1/012082

We provide a theoretical and experimental investigation of a Purcell enhancement in a Tamm-plasmon based microcavity structure with an organic (4,4'-Bis(N-carbazolyl)−l,l'- biphenyl (CBP)) active layer. The microcavity structure was fabricated using... Read More about Purcell effect investigation in organic Tamm plasmon structures.

Importance of Chromophore Rigidity on the Efficiency of Blue Thermally Activated Delayed Fluorescence Emitters (2018)
Journal Article
Kukhta, N. A., Batsanov, A. S., Bryce, M. R., & Monkman, A. P. (2018). Importance of Chromophore Rigidity on the Efficiency of Blue Thermally Activated Delayed Fluorescence Emitters. Journal of Physical Chemistry C, 122(50), 28564-28575. https://doi.org/10.1021/acs.jpcc.8b10867

Four new symmetrical donor–acceptor–donor (D–A–D)-type molecules are reported with diphenylamine (DPA) or 10,11-dihydro-5H-dibenz[b,f]azepine (Az) as electron donors and 9,9-dimethylthioxanthene-S,S-dioxide (TXO2) as the electron acceptor. The donors... Read More about Importance of Chromophore Rigidity on the Efficiency of Blue Thermally Activated Delayed Fluorescence Emitters.

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes (2018)
Journal Article
de Sa Pereira, D., Monkman, A. P., & Data, P. (2018). Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes. Journal of Visualized Experiments, Article e56593. https://doi.org/10.3791/56593

A method for producing simple and efficient thermally-activated delayed fluorescence organic light-emitting diodes (OLEDs) based on guest-host or exciplex donor-acceptor emitters is presented. With a step-by-step procedure, readers will be able to re... Read More about Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes.

Interfacial TADF Exciplex as a Tool to Localise Excitons, Improve Efficiency and Increase OLED Lifetime (2018)
Journal Article
Colella, M., Pander, P. H., Pereira, D. D. S., & Monkman, A. P. (2018). Interfacial TADF Exciplex as a Tool to Localise Excitons, Improve Efficiency and Increase OLED Lifetime. ACS Applied Materials and Interfaces, 10(46), 40001-40007. https://doi.org/10.1021/acsami.8b15942

In this work, we employ a TADF exciplex formed between the emissive layer (EML) host, 26DCzPPy, and the electron transport layer (ETL), PO-T2T at the interface between the EML and the ETL to improve the stability and efficiency of a phosphorescence O... Read More about Interfacial TADF Exciplex as a Tool to Localise Excitons, Improve Efficiency and Increase OLED Lifetime.

Thermally Activated Delayed Fluorescence Mediated through the Upper Triplet State Manifold in Non-Charge-Transfer Star-Shaped Triphenylamine–Carbazole Molecules (2018)
Journal Article
Pander, P., Motyka, R., Zassowski, P., Etherington, M. K., Varsano, D., da Silva, T. J., Caldas, M. J., Data, P., & Monkman, A. P. (2018). Thermally Activated Delayed Fluorescence Mediated through the Upper Triplet State Manifold in Non-Charge-Transfer Star-Shaped Triphenylamine–Carbazole Molecules. Journal of Physical Chemistry C, 122(42), 23934-23942. https://doi.org/10.1021/acs.jpcc.8b07610

Thermally activated delayed fluorescence has been found in a group of tricarbazolylamines that are purely electron-donating, non-charge-transfer (CT) molecules. We show that the reverse intersystem crossing step in these materials is mediated through... Read More about Thermally Activated Delayed Fluorescence Mediated through the Upper Triplet State Manifold in Non-Charge-Transfer Star-Shaped Triphenylamine–Carbazole Molecules.

Solution processable small molecule based TADF exciplex OLEDs (2018)
Journal Article
Colella, M., Pander, P., & Monkman, A. P. (2018). Solution processable small molecule based TADF exciplex OLEDs. Organic Electronics, 62, 168-173. https://doi.org/10.1016/j.orgel.2018.07.020

In this work we report the optimisation of the solution processable TADF exciplex emitter in OLED devices formed by the small molecules 9-[2,8]-9-carbazole-[dibenzothiophene-S,S-dioxide]-carbazole (DCz-DBTO2) and 4,4′-cyclohexylidenebis[N,N-bis(4-met... Read More about Solution processable small molecule based TADF exciplex OLEDs.

Chemical and conformational control of the energy gaps involved in the thermally activated delayed fluorescence mechanism (2018)
Journal Article
dos Santos, P. L., Etherington, M. K., & Monkman, A. P. (2018). Chemical and conformational control of the energy gaps involved in the thermally activated delayed fluorescence mechanism. Journal of Materials Chemistry C Materials for optical and electronic devices, 6(18), 4842-4853. https://doi.org/10.1039/c8tc00991k

This review summarises the significant developments in our understanding and control of thermally-activated delayed fluorescence (TADF) molecules and the spin–vibronic coupling mechanism, from which we have designed new generations of emitters. It co... Read More about Chemical and conformational control of the energy gaps involved in the thermally activated delayed fluorescence mechanism.

Triazatruxene: A rigid central donor unit for a D-A3 thermally activated delayed fluorescence material exhibiting sub-microsecond reverse intersystem crossing and unity quantum yield via multiple singlet-triplet state pairs (2018)
Journal Article
dos Santos, P. L., Ward, J. S., Congrave, D. G., Batsanov, A. S., Eng, J., Stacey, J. E., …Bryce, M. R. (2018). Triazatruxene: A rigid central donor unit for a D-A3 thermally activated delayed fluorescence material exhibiting sub-microsecond reverse intersystem crossing and unity quantum yield via multiple singlet-triplet state pairs. Advanced Science, 5(6), Article 1700989. https://doi.org/10.1002/advs.201700989

By inverting the common structural motif of thermally activated delayed fluorescence materials to a rigid donor core and multiple peripheral acceptors, reverse intersystem crossing (rISC) rates are demonstrated in an organic material that enables uti... Read More about Triazatruxene: A rigid central donor unit for a D-A3 thermally activated delayed fluorescence material exhibiting sub-microsecond reverse intersystem crossing and unity quantum yield via multiple singlet-triplet state pairs.

Effects of Ortho-Phenyl Substitution on the rISC Rate of D–A Type TADF Molecules (2018)
Journal Article
Higginbotham, H. F., Yi, C., Monkman, A. P., & Wong, K. (2018). Effects of Ortho-Phenyl Substitution on the rISC Rate of D–A Type TADF Molecules. Journal of Physical Chemistry C, 122(14), 7627-7634. https://doi.org/10.1021/acs.jpcc.8b01579

Two new donor (D)–acceptor (A) type molecules, PXZ-DBTO2 and PXZ-Ph-DBTO2, configured with phenoxazine donor and dibenzothiophene-S,S-dioxide acceptor are reported. PXZ-Ph-DBTO2, with a phenyl group introduced at the ortho position of PXZ, was used t... Read More about Effects of Ortho-Phenyl Substitution on the rISC Rate of D–A Type TADF Molecules.

Excited-State Aromatic Interactions in the Aggregation-Induced Emission of Molecular Rotors (2017)
Journal Article
Sturala, J., Etherington, M. K., Bismillah, A. N., Higginbotham, H. F., Trewby, W. J., Aguilar, J. A., Bromley, E. H., Avestro, A.-J., Monkman, A. P., & McGonigal, P. R. (2017). Excited-State Aromatic Interactions in the Aggregation-Induced Emission of Molecular Rotors. Journal of the American Chemical Society, 139(49), 17882-17889. https://doi.org/10.1021/jacs.7b08570

Small, apolar aromatic groups, such as phenyl rings, are commonly included in the structures of fluorophores in order to impart hindered intramolecular rotations, leading to desirable solid-state luminescence properties. However, they are not normall... Read More about Excited-State Aromatic Interactions in the Aggregation-Induced Emission of Molecular Rotors.