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., …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.

In-situ synchrotron X-ray topography observation of double-ended Frank-Read sources in PVT-grown 4H-SiC wafers (2018)
Conference Proceeding
Yang, Y., Guo, J., Raghothamachar, B., Dudley, M., Welt, S., Danilewsky, A., …Tanner, B. (2018). In-situ synchrotron X-ray topography observation of double-ended Frank-Read sources in PVT-grown 4H-SiC wafers. In R. Stahlbush, P. Neudeck, A. Bhalla, R. Devaty, M. Dudley, & A. Lelis (Eds.), Silicon Carbide and Related Materials 2017 (172-175). https://doi.org/10.4028/www.scientific.net/msf.924

Direct observation of stress relaxation process in 4H-SiC homoepitaxial layers via in-situ synchrotron X-ray topography (2018)
Conference Proceeding
Guo, J., Yang, Y., Raghothamachar, B., Dudley, M., Welt, S., Danilewsky, A., …Tanner, B. (2018). Direct observation of stress relaxation process in 4H-SiC homoepitaxial layers via in-situ synchrotron X-ray topography. In R. Stahlbush, P. Neudeck, A. Bhalla, R. Devaty, M. Dudley, & A. Lelis (Eds.), Silicon Carbide and Related Materials 2017 (176-179). https://doi.org/10.4028/www.scientific.net/msf.924

Photophysics of Thermally Activated Delayed Fluorescence in Organic Molecules (2018)
Book Chapter
Dias, F. B., Penfold, T. J., Berberan-Santos, M. N., & Monkman, A. P. (2018). Photophysics of Thermally Activated Delayed Fluorescence in Organic Molecules. In Magnetic Field Effects (227-257). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/10680

Spin-out, licence or collaborate: The Knowledge Transfer Dilemma (2018)
Other
Tanner, B. (2018). Spin-out, licence or collaborate: The Knowledge Transfer Dilemma

Spontaneous emission enhancement in planar metal-organic structures (2018)
Journal Article
Morozov, K., Ivanov, K., Selenin, N., Mikhrin, S., Sa Pereira, D. D., Menelaou, C., …Kaliteevski, M. (2018). Spontaneous emission enhancement in planar metal-organic structures. Journal of Physics: Conference Series, 1135, Article 012034. https://doi.org/10.1088/1742-6596/1135/1/012034

We provide an experimental investigation of a Purcell enhancement in a silver-organic periodic structure with an organic material CBP (4,4'-Bis(N-carbazolyl)-1,1'-biphenyl). Were fabricated two structures using a thermal evaporation technique with a... Read More about Spontaneous emission enhancement in planar metal-organic structures.

Grazing Incidence X-Ray Reflectivity and Scattering (2018)
Book Chapter
Tanner, B. K. (2018). Grazing Incidence X-Ray Reflectivity and Scattering. In N. Ida, & N. Meyendorf (Eds.), Handbook of Advanced Non-Destructive Evaluation (1-16). Springer Verlag. https://doi.org/10.1007/978-3-319-30050-4_16-1

Time-resolved Photophysical Characterization of Triplet-Harvesting Organic Compounds at Oxygen-Free Environment Using an iCCD Camera (2018)
Journal Article
Pander, P., Data1, P., & Dias, F. B. (2018). Time-resolved Photophysical Characterization of Triplet-Harvesting Organic Compounds at Oxygen-Free Environment Using an iCCD Camera. Journal of Visualized Experiments, 142, Article e56614. https://doi.org/10.3791/56614

Here, we present a sensible method of the acquisition and analysis of time-resolved photoluminescence using an ultrafast iCCD camera. This system enables the acquisition of photoluminescence spectra covering the time regime from nanoseconds up to 0.1... Read More about Time-resolved Photophysical Characterization of Triplet-Harvesting Organic Compounds at Oxygen-Free Environment Using an iCCD Camera.

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.

An iminodibenzyl–quinoxaline–iminodibenzyl scaffold as a mechanochromic and dual emitter: donor and bridge effects on optical properties (2018)
Journal Article
Pashazadeh, R., Pander, P., Bucinskas, A., Skabara, P. J., Dias, F. B., & Grazulevicius, J. V. (2018). An iminodibenzyl–quinoxaline–iminodibenzyl scaffold as a mechanochromic and dual emitter: donor and bridge effects on optical properties. Chemical Communications, 54(98), 13857-13860. https://doi.org/10.1039/c8cc06981f

The influence of phenyl linkage and donor strength on the photophysical properties of new derivatives of quinoxaline-containing iminodibenzyl and iminostilbene moieties is studied. The donor–acceptor derivatives showed dual thermally activated delaye... Read More about An iminodibenzyl–quinoxaline–iminodibenzyl scaffold as a mechanochromic and dual emitter: donor and bridge effects on optical properties.

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.

Intramolecular Charge Transfer Controls Switching Between Room Temperature Phosphorescence and Thermally Activated Delayed Fluorescence (2018)
Journal Article
Chen, C., Huang, R., Batsanov, A., Pander, P., Hsu, Y., Chi, Z., …Bryce, M. R. (2018). Intramolecular Charge Transfer Controls Switching Between Room Temperature Phosphorescence and Thermally Activated Delayed Fluorescence. Angewandte Chemie, 130(50), 16645-16649. https://doi.org/10.1002/ange.201809945

Chemical modification of phenothiazine–benzophenone derivatives is shown to tune the emission behavior from triplet states by selecting the molecular geometry of the intramolecular charge transfer (ICT) state. A fundamental principle of planar ICT (P... Read More about Intramolecular Charge Transfer Controls Switching Between Room Temperature Phosphorescence and Thermally Activated Delayed Fluorescence.

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.

Bond Rotations and Heteroatom Effects in Donor-Acceptor-Donor Molecules: Implications for Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence (2018)
Journal Article
Ward, J. S., Nobuyasu, R. S., Fox, M. A., Batsanov, A. S., Santos, J., Dias, F. B., & Bryce, M. R. (2018). Bond Rotations and Heteroatom Effects in Donor-Acceptor-Donor Molecules: Implications for Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence. Journal of Organic Chemistry, 83(23), 14431-14442. https://doi.org/10.1021/acs.joc.8b02187

The synthesis of 1-methylphenoxazine via CO2-directed lithiation chemistry is reported. This electron donor was coupled with 2,8-dibenzothiophene-S,S-dioxide with Buchwald–Hartwig chemistry to give a new D–A–D charge-transfer fluorescent molecule 1b.... Read More about Bond Rotations and Heteroatom Effects in Donor-Acceptor-Donor Molecules: Implications for Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence.

Observation of Dual Room Temperature Fluorescence-Phosphorescence in Air, in the Crystal Form of a Thianthrene Derivative (2018)
Journal Article
Pander, P. H., Swist, A., Turczyn, R. M., Pouget, S., Djurado, D., Lazauskas, A., …Dias, F. B. (2018). Observation of Dual Room Temperature Fluorescence-Phosphorescence in Air, in the Crystal Form of a Thianthrene Derivative. Journal of Physical Chemistry C, 122(43), 24958-24966. https://doi.org/10.1021/acs.jpcc.8b08329

Thianthrenes have been nearly forgotten as phosphors in recent years, but are now coming back, showing their strong potential in luminescent applications. Here, we present a comprehensive photophysical study of a carbazolyl derivative of thianthrene... Read More about Observation of Dual Room Temperature Fluorescence-Phosphorescence in Air, in the Crystal Form of a Thianthrene Derivative.

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., …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.

Intermolecular Interactions in Molecular Crystals and Their Effect on Thermally Activated Delayed Fluorescence of Helicene-Based Emitters (2018)
Journal Article
Klimash, A., Pander, P. H., Klooster, W., Coles, S., Data, P., Dias, F., & Skabara, P. (2018). Intermolecular Interactions in Molecular Crystals and Their Effect on Thermally Activated Delayed Fluorescence of Helicene-Based Emitters. Journal of Materials Chemistry C Materials for optical and electronic devices, 6(39), 10557-10568. https://doi.org/10.1039/c8tc03390k

Here, we discuss the influence of the crystal structure on the photophysical properties of two new TADF emitters containing a non-planar helical moiety. The presence of solvent in the crystal lattice of a diaza[5]helicene-based compound alters molecu... Read More about Intermolecular Interactions in Molecular Crystals and Their Effect on Thermally Activated Delayed Fluorescence of Helicene-Based Emitters.

The influence of molecular conformation on the photophysics of organic room temperature phosphorescent luminophores (2018)
Journal Article
Huang, R., Ward, J. S., Kukhta, N. A., Avó, J., Gibson, J., Penfold, T., …Dias, F. B. (2018). The influence of molecular conformation on the photophysics of organic room temperature phosphorescent luminophores. Journal of Materials Chemistry C Materials for optical and electronic devices, 10(34), 9238-9247. https://doi.org/10.1039/c8tc02987c

A series of novel donor–acceptor–donor (D–A–D) compounds featuring dibenzothiophene (DBT) and phenothiazine (PTZ) units are presented. A different degree of steric hindrance between the donor and acceptor fragments is achieved by the systematic chang... Read More about The influence of molecular conformation on the photophysics of organic room temperature phosphorescent luminophores.

Thermally-Activated Delayed Fluorescence in Polymer-Small Molecule Exciplex Blends for Solution-Processed Organic Light-Emitting Diodes (2018)
Journal Article
Pander, P. H., Gogoc, S., Colella, M., Data, P., & Dias, F. B. (2018). Thermally-Activated Delayed Fluorescence in Polymer-Small Molecule Exciplex Blends for Solution-Processed Organic Light-Emitting Diodes. ACS Applied Materials and Interfaces, 10(34), 28796-28802. https://doi.org/10.1021/acsami.8b07554

The photophysics of an exciplex state, formed between a small molecule and a polymer, is investigated in this work. The results obtained with this blend show the strong potential of polymer-small molecule blends for triplet harvesting in organic ligh... Read More about Thermally-Activated Delayed Fluorescence in Polymer-Small Molecule Exciplex Blends for Solution-Processed Organic Light-Emitting Diodes.

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.