Outputs (280)

Hot Vibrational States in a High-Performance Multiple Resonance Emitter and the Effect of Excimer Quenching on Organic Light-Emitting Diodes (2021)
Journal Article
Stavrou, K., Danos, A., Hama, T., Hatakeyama, T., & Monkman, A. (2021). Hot Vibrational States in a High-Performance Multiple Resonance Emitter and the Effect of Excimer Quenching on Organic Light-Emitting Diodes. ACS Applied Materials and Interfaces, 13(7), 8643-8655. https://doi.org/10.1021/acsami.0c20619

The photophysics of multiple resonance thermally activated delayed fluorescence molecule ν-DABNA is described. We show coupling of a 285 cm–1 stretching/scissoring vibrational mode of peripheral phenyl rings to the S1 state, which dictates the ultima... Read More about Hot Vibrational States in a High-Performance Multiple Resonance Emitter and the Effect of Excimer Quenching on Organic Light-Emitting Diodes.

The Critical Role of nπ* States in the Photophysics and Thermally Activated Delayed Fluorescence of Spiro Acridine-Anthracenone (2021)
Journal Article
Gomes Franca, L., Long, Y., Li, C., Danos, A., & Monkman, A. (2021). The Critical Role of nπ* States in the Photophysics and Thermally Activated Delayed Fluorescence of Spiro Acridine-Anthracenone. Journal of Physical Chemistry Letters, 12(5), 1490-1500. https://doi.org/10.1021/acs.jpclett.0c03314

The molecular photophysics and thermally activated delayed fluorescence (TADF) in spiro compounds are distinct because of the rigid orthogonal C–C bridging bond between donor and acceptor. The photophysics is found to be highly complex, with unpreced... Read More about The Critical Role of nπ* States in the Photophysics and Thermally Activated Delayed Fluorescence of Spiro Acridine-Anthracenone.

Suppressing Dimer Formation by Increasing Conformational Freedom in Multi-Carbazole Thermally Activated Delayed Fluorescence Emitters (2020)
Journal Article
Salah, L., Etherington, M., Shuaib, A., Danos, A., Nazeer, A., Ghazal, B., Prlj, A., Turley, A., Mallick, A., McGonigal, P., Curchod, B., Monkman, A., & Makhseed, S. (2021). Suppressing Dimer Formation by Increasing Conformational Freedom in Multi-Carbazole Thermally Activated Delayed Fluorescence Emitters. Journal of Materials Chemistry C Materials for optical and electronic devices, 9(1), 189-198. https://doi.org/10.1039/d0tc04222f

Ideal emitters for organic light-emitting diodes (OLEDs) are capable of efficiently harvesting non-emissive triplet states, have high colour stabilities, and possess high photoluminescence quantum yields (PLQYs). Maintaining colour stability and PLQY... Read More about Suppressing Dimer Formation by Increasing Conformational Freedom in Multi-Carbazole Thermally Activated Delayed Fluorescence Emitters.

Efficient UV Luminescence from Organic-Based Tamm Plasmon Structures Emitting in the Strong Coupling Regime (2020)
Journal Article
Morozov, K. M., Ivanov, K. A., Belonovski, A. V., Girshova, E. I., Pereira, D. D. S., Menelaou, C., Pander, P. H., Franca, L. G., Monkman, A. P., Pozina, G., Livshits, D. A., Selenin, N. V., & Kaliteevski, M. A. (2020). Efficient UV Luminescence from Organic-Based Tamm Plasmon Structures Emitting in the Strong Coupling Regime. Journal of Physical Chemistry C, 124(39), 21656-21663. https://doi.org/10.1021/acs.jpcc.0c05091

Excitons in organic semiconductors possessing a large oscillator strength demonstrate strong coupling with cavity modes at room temperature. A large Stokes shift in some organic semiconductors enriches and complicates the picture of the emission in s... Read More about Efficient UV Luminescence from Organic-Based Tamm Plasmon Structures Emitting in the Strong Coupling Regime.

Photophysics of TADF guest-host systems: introducing the idea of hosting potential (2020)
Journal Article
Stavrou, K., Gomes Franca, L., & Monkman, A. P. (2020). Photophysics of TADF guest-host systems: introducing the idea of hosting potential. ACS Applied Electronic Materials, 2(9), 2868-2881. https://doi.org/10.1021/acsaelm.0c00514

The thermally activated delayed fluorescence (TADF) donor-acceptor (D-A) molecule, DMAC-TRZ, is used as a TADF emitter ‘probe’ to distinguish the environmental effects of a range of solid state host materials in guest-host systems. Using the guest’s... Read More about Photophysics of TADF guest-host systems: introducing the idea of hosting potential.

Navigating CIE Space for Efficient TADF Downconversion WOLEDs (2020)
Journal Article
Aksoy, E., Danos, A., Varlikli, C., & Monkman, A. P. (2020). Navigating CIE Space for Efficient TADF Downconversion WOLEDs. Dyes and Pigments, 183, Article 108707. https://doi.org/10.1016/j.dyepig.2020.108707

High efficiency orange and green emitting perylene dyes have been synthesised and dispersed in an inert polymer host to form an optical downconversion layer. To avoid dye aggregation and allow controlled colour tuning, this layer was deposited in mul... Read More about Navigating CIE Space for Efficient TADF Downconversion WOLEDs.

Excited State Dynamics of Thermally Activated Delayed Fluorescence from an Excited State Intramolecular Proton Transfer System (2020)
Journal Article
Long, Y., Mamada, M., Li, C., dos Santos, P. L., Colella, M., Danos, A., Adachi, C., & Monkman, A. (2020). Excited State Dynamics of Thermally Activated Delayed Fluorescence from an Excited State Intramolecular Proton Transfer System. Journal of Physical Chemistry Letters, 11(9), 3305-3312. https://doi.org/10.1021/acs.jpclett.0c00498

We describe the photophysical processes that give rise to thermally activated delayed fluorescence in the excited state intramolecular proton transfer (ESIPT) molecule, triquinolonobenzene (TQB). Using transient absorption and time-resolved photolumi... Read More about Excited State Dynamics of Thermally Activated Delayed Fluorescence from an Excited State Intramolecular Proton Transfer System.

Investigation of Thermally Activated Delayed Fluorescence from a Donor–Acceptor Compound with Time-Resolved Fluorescence and Density Functional Theory Applying an Optimally Tuned Range-Separated Hybrid Functional (2020)
Journal Article
Scholz, R., Kleine, P., Lygaitis, R., Popp, L., Lenk, S., Etherington, M. K., Monkman, A. P., & Reineke, S. (2020). Investigation of Thermally Activated Delayed Fluorescence from a Donor–Acceptor Compound with Time-Resolved Fluorescence and Density Functional Theory Applying an Optimally Tuned Range-Separated Hybrid Functional. The Journal of Physical Chemistry A, 124(8), 1535-1553. https://doi.org/10.1021/acs.jpca.9b11083

Emitters showing thermally activated delayed fluorescence (TADF) in electroluminescent devices rely on efficient reverse intersystem crossing (rISC) arising from small thermal activation barriers between the lowest excited triplet and singlet manifol... Read More about Investigation of Thermally Activated Delayed Fluorescence from a Donor–Acceptor Compound with Time-Resolved Fluorescence and Density Functional Theory Applying an Optimally Tuned Range-Separated Hybrid Functional.

Unusual dual-emissive heteroleptic iridium complexes incorporating TADF cyclometalating ligands (2020)
Journal Article
Benjamin, H., Zheng, Y., Kozhevnikov, V. N., Siddle, J. S., O'Driscoll, L. J., Fox, M. A., Batsanov, A. S., Griffiths, G. C., Dias, F. B., Monkman, A. P., & Bryce, M. R. (2020). Unusual dual-emissive heteroleptic iridium complexes incorporating TADF cyclometalating ligands. Dalton Transactions, 49(7), 2190-2208. https://doi.org/10.1039/c9dt04672k

Five new neutral heteroleptic iridium(III) complexes IrL2(pic) (2–6) based on the archetypical blue emitter FIrpic have been synthesised. The cyclometallating ligands L are derived from 2-(2,6-F2-3-pyridyl)-4-mesitylpyridine (7), 2-(3-cyano-2,6-F2-ph... Read More about Unusual dual-emissive heteroleptic iridium complexes incorporating TADF cyclometalating ligands.

An unusual plank-shaped nematogen with a graphene nanoribbon core (2019)
Journal Article
Farias, G., Simeão, D. S., Moreira, T. S., dos Santos, P. L., Bentaleb, A., Girotto, E., Monkman, A. P., Eccher, J., Durola, F., Bock, H., de Souza, B., & Bechtold, I. H. (2019). An unusual plank-shaped nematogen with a graphene nanoribbon core. Journal of Materials Chemistry C Materials for optical and electronic devices, 7(39), 12080-12085. https://doi.org/10.1039/c9tc03704g

A [12]phenacene exclusively decorated with four lateral hexylester substituents self-assembles into a nematic liquid crystal glass on cooling after melting at high temperature. This uniaxial nematic organization of a plank-shaped nanographene is unpr... Read More about An unusual plank-shaped nematogen with a graphene nanoribbon core.