Staff profile

Departmental Responsabilities

Teaching

Fourth year undergraduate course in Optical Devices; Postgraduate course in Optical Spectroscopy; Level 1 Discovery Labs; Level 1 tutorials;Team Project; Level 4 project supervision.

PhD supervision: Rongjuan Huang and Piotr Pander.

Administration

Chair of the Health & Safety Committee; International Coordinator (Physics); Exchange Coordinator (Physics).

Research Interests

My research is broadly focused on the area of spectroscopy and photophysics of organic molecules for optoelectronic and photonic applications, focusing in particular on NIR emitters; room-temperature phosphorescence, termally activated delayed fluorescence, and energy transfer.

Chapter in book

• 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
• Seixas de Melo, J., Pina, J., Dias, F., & Maçanita, A. (2013). Experimental Techniques for Excited State Characterisation. In Applied Photochemistry. https://doi.org/10.1007/978-90-481-3830-2_15
• Monkman, A., Rothe, C., King, S., & Dias, F. (2008). Polyfluorene photophysics. In U. Scherf, & D. Neher (Eds.), Polyfluorenes (187-225). Springer Verlag. https://doi.org/10.1007/12_2008_147

Journal Article

• Galán-González, A., Pander, P., MacKenzie, R. C. I., Bowen, L., Zeze, D. A., Borthwick, R. J., …Chaudhry, M. U. (2023). Nanostructured Channel for Improving Emission Efficiency of Hybrid Light-Emitting Field-Effect Transistors. ACS Photonics, 10(12), 4315-4321. https://doi.org/10.1021/acsphotonics.3c01080
• Pander, P., Walden, M. T., Salthouse, R. J., Sil, A., Yufit, D. S., Dias, F. B., & Williams, J. A. G. (2023). Rigidly linked dinuclear platinum( ii ) complexes showing intense, excimer-like, near-infrared luminescence. Journal of Materials Chemistry C Materials for optical and electronic devices, 11(43), 15335-15346. https://doi.org/10.1039/d3tc03432a
• Pander, P., Zaytsev, A. V., Franca, L. G., Dias, F. B., & Kozhevnikov, V. N. (2023). Unusual Excimer/Dimer Behavior of a Highly Soluble C,N Platinum(II) Complex with a Spiro-Fluorene Motif. Inorganic Chemistry, 62, 18465 - 18473. https://doi.org/10.1021/acs.inorgchem.3c02667
• Pander, P., *Gomes Franca, L., Dias, F. B., & Kozhevnikov, V. N. (2023). Electroluminescence of Tetradentate Pt(II) Complexes: O^N^N^O versus C^N^N^O Coordination. Inorganic Chemistry, 62(14), https://doi.org/10.1021/acs.inorgchem.3c00364
• Pander, P., Zaytsev, A. V., Sil, A., Baryshnikov, G. V., Siddique, F., Williams, J. A. G., …Kozhevnikov, V. N. (2023). Thermally activated delayed fluorescence in a deep red dinuclear iridium( iii ) complex: a hidden mechanism for short luminescence lifetimes †. Chemical Science, 14, 13934-13943. https://doi.org/10.1039/d3sc04450e
• Fialho, C. B., Cruz, T. F. C., Rodrigues, A. I., Calhorda, M. J., Vieira Ferreira, L. F., Dias, F. B., …Gomes, P. T. (2023). 9-Borafluoren-9-yl and diphenylboron tetracoordinate complexes of F- and Cl-substituted 8-quinolinolato ligands: synthesis, molecular and electronic structures, fluorescence and application in OLED devices. Dalton Transactions, 52(15), 4933-4953. https://doi.org/10.1039/d3dt00496a
• Pander, P., Sil, A., Salthouse, R. J., Harris, C. W., Walden, M. T., Yufit, D. S., …Dias, F. B. (2022). Excimer or aggregate? Near infrared electro- and photoluminescence from multimolecular excited states of N^C^N-coordinated platinum(ii) complexes. Journal of Materials Chemistry C Materials for optical and electronic devices, 10(40), 15084-15095. https://doi.org/10.1039/d2tc01511k
• Li, C., Harrison, A. K., Liu, Y., Zhao, Z., Zeng, C., Dias, F. B., …Bryce, M. R. (2022). Asymmetrical‐Dendronized TADF Emitters for Efficient Non‐doped Solution‐Processed OLEDs by Eliminating Degenerate Excited States and Creating Solely Thermal Equilibrium Routes. Angewandte Chemie International Edition, 61(19), Article e202115140. https://doi.org/10.1002/anie.202115140
• Li, C., Harrison, A. K., Liu, Y., Zhao, Z., Dias, F. B., Zeng, C., …Ren, Z. (2022). TADF dendronized polymer with vibrationally enhanced direct spin-flip between charge-transfer states for efficient non-doped solution-processed OLEDs. Chemical Engineering Journal, 435, Article 134924. https://doi.org/10.1016/j.cej.2022.134924
• Maggiore, A., Qu, Y., Guillot, R., Pander, P., Vasylieva, M., Data, P., …Miomandre, F. (2022). Novel Easy to Synthesize Benzonitrile Compounds with Mixed Carbazole and Phenoxazine Substituents Exhibiting Dual Emission and TADF Properties. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 126(14), 2740-2753. https://doi.org/10.1021/acs.jpcb.2c00219
• Pander, P., Zaytsev, A. V., Sil, A., Williams, J. G., Kozhevnikov, V. N., & Dias, F. B. (2022). Enhancement of thermally activated delayed fluorescence properties by substitution of ancillary halogen in a multiple resonance-like diplatinum(ii) complex. Journal of Materials Chemistry C Materials for optical and electronic devices, 10(12), 4851-4860. https://doi.org/10.1039/d1tc05026e
• Salthouse, R. J., Pander, P., Yufit, D. S., Dias, F. B., & Williams, J. G. (2022). Near-infrared electroluminescence beyond 940 nm in Pt(N^C^N)X complexes: influencing aggregation with the ancillary ligand X. Chemical Science, 13(45), 13600-13610. https://doi.org/10.1039/d2sc05023d
• Powroźnik, P., Solecka, B., Pander, P., Jakubik, W., Dias, F. B., & Krzywiecki, M. (2022). Zinc Phthalocyanine Sensing Mechanism Quantification for Potential Application in Chemical Warfare Agent Detectors. Sensors, 22(24), Article 9947. https://doi.org/10.3390/s22249947
• Tavares, I. G., Enkvist, E., Kaimre, J., Uri, A., & Dias, F. B. (2021). Intramolecular interchromophore singlet-singlet and triplet-singlet energy transfer in a metal-free donor-acceptor emitter. Journal of Luminescence, 237, Article 118183. https://doi.org/10.1016/j.jlumin.2021.118183
• Pander, P. H., Zaytsev, A., Sil, A., Williams, J. G., Lanoë, P., Kozhevnikov, V. N., & Dias, F. B. (2021). The Role of Dinuclearity in Promoting Thermally Activated Delayed Fluorescence (TADF) in Cyclometallated, N^C^N-coordinated Platinum(II) Complexes. Journal of Materials Chemistry C Materials for optical and electronic devices, 9(32), 10276-10287. https://doi.org/10.1039/d1tc02562g
• Vasylieva, M., Pander, P., Sharma, B. K., Shaikh, A. M., Kamble, R. M., Dias, F. B., …Data, P. (2021). Acridone-amine D-A-D thermally activated delayed fluorescence emitters with narrow resolved electroluminescence and their electrochromic properties. Electrochimica Acta, 384, Article 138487. https://doi.org/10.1016/j.electacta.2021.138347
• Pander, P., Turnbull, G., Zaytsev, A. V., Dias, F. B., & Kozhevnikov, V. N. (2021). Benzannulation via the use of 1,2,4-triazines extends aromatic system of cyclometallated Pt(II) complexes to achieve candle light electroluminescence. Dyes and Pigments, 184, Article 108857. https://doi.org/10.1016/j.dyepig.2020.108857
• Smith, P. O., Black, D. J., Pal, R., Avó, J., Dias, F. B., Linthwaite, V. L., …Pålsson, L. (2021). Applying TADF Emitters in Bioimaging and Sensing—A Novel Approach Using Liposomes for Encapsulation and Cellular Uptake. Frontiers in Chemistry, 9, Article 743928. https://doi.org/10.3389/fchem.2021.743928
• Hempe, M., Harrison, A. K., Ward, J. S., Batsanov, A. S., Fox, M. A., Dias, F. B., & Bryce, M. R. (2021). Cyclophane Molecules Exhibiting Thermally Activated Delayed Fluorescence: Linking Donor Units to Influence Molecular Conformation. Journal of Organic Chemistry, 86(1), 429-445. https://doi.org/10.1021/acs.joc.0c02174
• Pander, P. H., Daniels, R., Zaytsev, A., Horn, A., Sil, A., Penfold, T., …Dias, F. B. (2021). Exceptionally Fast Radiative Decay of a Dinuclear Platinum Complex Through Thermally Activated Delayed Fluorescence. Chemical Science, 6172-6180. https://doi.org/10.1039/d1sc00160d
• Shafikov, M. Z., Pander, P., Zaytsev, A. V., Daniels, R., Martinscroft, R., Dias, F. B., …Kozhevnikov, V. N. (2021). Extended ligand conjugation and dinuclearity as a route to efficient platinum-based near-infrared (NIR) triplet emitters and solution-processed NIR-OLEDs. Journal of Materials Chemistry C Materials for optical and electronic devices, 9(1), 127-135. https://doi.org/10.1039/d0tc04881j
• Rodrigues, A. I., Krishnamoorthy, P., Gomes, C. S., Carmona, N., Di Paolo, R. E., Pander, P., …Gomes, P. T. (2020). Luminescent halogen-substituted 2-(N-arylimino)pyrrolyl boron complexes: the internal heavy-atom effect. Dalton Transactions, 49(29), 10185-10202. https://doi.org/10.1039/d0dt01845g
• Crucho, C. I., Avó, J., Nobuyasu, R., N. Pinto, S., Fernandes, F., Lima, J. C., …Dias, F. B. (2020). Silica nanoparticles with thermally activated delayed fluorescence for live cell imaging. Materials Science and Engineering: C, 109, Article 110528. https://doi.org/10.1016/j.msec.2019.110528
• Zheng, X., Huang, R., Zhong, C., Xie, G., Ning, W., Huang, M., …Yang, C. (2020). Achieving 21% External Quantum Efficiency for Nondoped Solution-Processed Sky-Blue Thermally Activated Delayed Fluorescence OLEDs by Means of Multi-Donor/Acceptor Emitter with Through-Space/-Bond Charge Transfer. Advanced Science, 7(7), Article 1902087. https://doi.org/10.1002/advs.201902087
• Aldahhak, H., Powroźnik, P., Pander, P., Jakubik, W., Dias, F. B., Schmidt, W. G., …Krzywiecki, M. (2020). Toward Efficient Toxic-Gas Detectors: Exploring Molecular Interactions of Sarin and Dimethyl Methylphosphonate with Metal-Centered Phthalocyanine Structures. Journal of Physical Chemistry C, 124(11), 6090-6102. https://doi.org/10.1021/acs.jpcc.9b11116
• Qu, Y., Pander, P. H., Vybornyi, O., Vasylieva, M., Guillot, R., Miomandre, F., …Audebert, P. (2020). Donor-acceptor 1,2,4,5-Tetrazines Prepared by Buchwald-Hartwig Cross-Coupling Reaction and Their Photoluminescence Turn-on Property by Inverse Electron Demand Diels-Alder Reaction. Journal of Organic Chemistry, 85(5), 3407-3416. https://doi.org/10.1021/acs.joc.9b02817
• Benjamin, H., Zheng, Y., Kozhevnikov, V. N., Siddle, J. S., O'Driscoll, L. J., Fox, M. A., …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
• Crucho, C. I., Avó, J., Diniz, A. M., Pinto, S. N., Barbosa, J., Smith, P. O., …Dias, F. B. (2020). TADF Dye-Loaded Nanoparticles for Fluorescence Live-Cell Imaging. Frontiers in Chemistry, 8, Article 404. https://doi.org/10.3389/fchem.2020.00404
• Kukhta, N., Huang, R., Batsanov, A., Bryce, M., & Dias, F. (2019). Achieving Conformational Control in RTP and TADF Emitters by Functionalization of the Central Core. Journal of Physical Chemistry C, 123(43), 26536-26546. https://doi.org/10.1021/acs.jpcc.9b08238
• Huang, R., Kukhta, N., Ward, J., Danos, A., Batsanov, A., Bryce, M., & Dias, F. (2019). Balancing charge-transfer strength and triplet states for deep-blue thermally activated delayed fluorescence with an unconventional electron rich dibenzothiophene acceptor. Journal of Materials Chemistry C Materials for optical and electronic devices, 7(42), 13224-13234. https://doi.org/10.1039/c9tc02175b
• Nobuyasu, R. S., Ward, J. S., Gibson, J., Laidlaw, B. A., Ren, Z., Data, P., …Dias, F. B. (2019). The influence of molecular geometry on the efficiency of thermally activated delayed fluorescence. Journal of Materials Chemistry C Materials for optical and electronic devices, 7(22), 6672-6684. https://doi.org/10.1039/c9tc00720b
• Walden, M. T., Pander, P., Yufit, D. S., Dias, F. B., & Williams, J. G. (2019). Homoleptic platinum(ii) complexes with pyridyltriazole ligands: excimer-forming phosphorescent emitters for solution-processed OLEDs. Journal of Materials Chemistry C Materials for optical and electronic devices, 7(22), 6592--6606. https://doi.org/10.1039/c9tc00768g
• Chapran, M., Pander, P. H., Vasylieva, M., Wiosna-Sałyga, G., Ulanski, J., Dias, F. B., & Data, P. (2019). Realizing 20% External Quantum Efficiency in Electroluminescence with Efficient Thermally Activated Delayed Fluorescence from an Exciplex. ACS Applied Materials and Interfaces, 11(14), 13460-13471. https://doi.org/10.1021/acsami.8b18284
• Ward, J. S., Nobuyasu, R. S., Fox, M. A., Aguilar, J. A., Hall, D., Batsanov, A. S., …Bryce, M. R. (2019). Impact of Methoxy Substituents on Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence in All-Organic Donor–Acceptor Systems. Journal of Organic Chemistry, 84(7), 3801-3816. https://doi.org/10.1021/acs.joc.8b02848
• Lv, X., Huang, R., Sun, S., Zhang, Q., Xiang, S., Ye, S., …Wang, L. (2019). Blue TADF Emitters Based on Indenocarbazole Derivatives with High Photoluminescence and Electroluminescence Efficiencies. ACS Applied Materials and Interfaces, 11(11), 10758-10767. https://doi.org/10.1021/acsami.8b20699
• Shafikov, M. Z., Daniels, R., Pander, P., Dias, F. B., Williams, J. G., & Kozhevnikov, V. N. (2019). Dinuclear Design of a Pt(II) Complex Affording Highly Efficient Red Emission: Photophysical Properties and Application in Solution-Processible OLEDs. ACS Applied Materials and Interfaces, 11(8), 8182-8193. https://doi.org/10.1021/acsami.8b18928
• dos Santos, P. L. L., Silveira, O. J., Huang, R., Jardim, G., Matos, M. J. S., da Silva Júnior, E. N., …Cury, L. A. (2019). Dynamics of aggregated states resolved by gated fluorescence in films of room temperature phosphorescent emitters. Physical Chemistry Chemical Physics, 21(7), 3814-3821. https://doi.org/10.1039/c8cp07005a
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• Pander, P. H., Swist, A., Soloducho, J., Dias, F., & Data, P. (2018). Thermally Activated Delayed Fluorescence with Narrow Emission Spectrum and Organic Room Temperature Phosphorescence by Controlling Spin-Orbit Coupling and Phosphorescence Lifetime of Metal-Free Organic Molecules. Journal of Materials Chemistry C Materials for optical and electronic devices, 6(20), 5434--5443. https://doi.org/10.1039/c8tc00175h
• Pander, P., Bulmer, R., Martinscroft, R., Thompson, S., Lewis, F., Penfold, T., …Kozhevnikov, V. (2018). 1,2,4-Triazines in the Synthesis of Bipyridine Bisphenolate O^N^N^O Ligands and Their Highly Luminescent Tetradentate Pt(II) Complexes for Solution-Processable OLEDs. Inorganic Chemistry, 57(7), 3825-3832. https://doi.org/10.1021/acs.inorgchem.7b03175
• Penfold, T., Dias, F., & Monkman, A. (2018). The theory of thermally activated delayed fluorescence for organic light emitting diodes. Chemical Communications, 54(32), 3926-3935. https://doi.org/10.1039/c7cc09612g
• Pashazadeh, R., Pander, P., Lazauskas, A., Dias, F. B., & Grazulevicius, J. V. (2018). Multicolor Luminescence Switching and Controllable Thermally Activated Delayed Fluorescence Turn on/Turn off in Carbazole–Quinoxaline–Carbazole Triads. Journal of Physical Chemistry Letters, 9(5), 1172-1177. https://doi.org/10.1021/acs.jpclett.8b00136
• Li, C., Nobuyasu, R. S., Wang, Y., Dias, F. B., Ren, Z., Bryce, M. R., & Yan, S. (2017). Solution-Processable Thermally Activated Delayed Fluorescence White OLEDs Based on Dual-Emission Polymers with Tunable Emission Colors and Aggregation Enhanced Emission Properties. Advanced Optical Materials, 5(20), Article 1700435. https://doi.org/10.1002/adom.201700435
• Li, G., Nobuyasu, R., Zhang, B., Geng, Y., Yao, B., Xie, Z., …Bryce, M. (2017). Thermally Activated Delayed Fluorescence in Cu(I) Complexes Originating from Restricted Molecular Vibrations. Chemistry - A European Journal, 23(49), 11761-11766. https://doi.org/10.1002/chem.201701862
• Huang, R., Avó, J., Northey, T., Chaning-Pearce, E., dos Santos, P. L., Ward, J. S., …Dias, F. B. (2017). The Contributions of Molecular Vibrations and Higher Triplet Levels to the Intersystem Crossing Mechanism in Metal-Free Organic Emitters. Journal of Materials Chemistry C Materials for optical and electronic devices, 5(25), 6269-6280. https://doi.org/10.1039/c7tc01958k
• Etherington, M. K., Franchello, F., Gibson, J., Northey, T., Santos, J., Ward, J. S., …Monkman, A. P. (2017). Regio- and conformational isomerization critical to design of efficient thermally-activated delayed fluorescence emitters. Nature Communications, 8, Article 14987. https://doi.org/10.1038/ncomms14987
• Pander, P., Swist, A., Soloducho, J., & Dias, F. B. (2017). Room Temperature Phosphorescence Lifetime and Spectrum Tuning of Substituted Thianthrenes. Dyes and Pigments, 142, 315-322. https://doi.org/10.1016/j.dyepig.2017.03.049
• Dias, F. B., Penfold, T. J., & Monkman, A. P. (2017). Photophysics of Thermally Activated Delayed Fluorescence Molecules. Methods and Applications in Fluorescence, 5(1), Article 012001. https://doi.org/10.1088/2050-6120/aa537e
• Costa, B., Jardim, G., Santos, P., Calado, H., Monkman, A., Dias, F., …Cury, L. (2017). Indirect consequences of exciplex states on the phosphorescence lifetime of phenazine-based 1,2,3-triazole luminescent probes. Physical Chemistry Chemical Physics, 19(5), 3473-3479. https://doi.org/10.1039/c6cp06134f
• Dias, F., Santos, J., Graves, D., Data, P., Nobuyasu, R., Fox, M., …Monkman, A. (2016). The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices. Advanced Science, 3(12), Article 1600080. https://doi.org/10.1002/advs.201600080
• dos Santos, P. L., Dias, F. B., & Monkman, A. P. (2016). Investigation of the Mechanisms Giving Rise to TADF in Exciplex States. Journal of Physical Chemistry C, 120(32), 18259-18267. https://doi.org/10.1021/acs.jpcc.6b05198
• Ren, Z., Nobuyasu, R. S., Dias, F. B., Monkman, A. P., Yan, S., & Bryce, M. R. (2016). Pendant Homopolymer and Copolymers as Solution-Processable Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes. Macromolecules, 49(15), 5452-5460. https://doi.org/10.1021/acs.macromol.6b01216
• Santos, P. L., Ward, J. S., Data, P., Batsanov, A. S., Bryce, M. R., Dias, F. B., & Monkman, A. P. (2016). Engineering the singlet–triplet energy splitting in a TADF molecule. Journal of Materials Chemistry C Materials for optical and electronic devices, 4(17), 3815-3824. https://doi.org/10.1039/c5tc03849a
• Santos, P., Cury, L., Dias, F., & Monkman, A. (2016). Spectroscopic studies of different poly3hexylthiophene chain environments in a polyfluorene matrix. Journal of Luminescence, 172, 118-123. https://doi.org/10.1016/j.jlumin.2015.11.045
• Nobuyasu, R. S., Ren, Z., Griffiths, G. C., Batsanov, A. S., Data, P., Yan, S., …Dias, F. B. (2016). Rational Design of TADF Polymers Using a Donor–Acceptor Monomer with Enhanced TADF Efficiency Induced by the Energy Alignment of Charge Transfer and Local Triplet Excited States. Advanced Optical Materials, 4(4), 597-607. https://doi.org/10.1002/adom.201500689
• Ward, J. S., Nobuyasu, R. S., Batsanov, A. S., Data, P., Monkman, A. P., Dias, F. B., & Bryce, M. R. (2016). The interplay of thermally activated delayed fluorescence (TADF) and room temperature organic phosphorescence in sterically-constrained donor–acceptor charge-transfer molecules. Chemical Communications, 52(12), 2612-2615. https://doi.org/10.1039/c5cc09645f
• Jankus, V., Aydemir, M., Dias, F. B., & Monkman, A. P. (2016). Generating Light from Upper Excited Triplet States: A Contribution to the Indirect Singlet Yield of a Polymer OLED, Helping to Exceed the 25% Singlet Exciton Limit. Advanced Science, 3(1), Article 1500221. https://doi.org/10.1002/advs.201500221
• Aydemir, M., Haykır, G., Battal, A., Jankus, V., Sugunana, S., Dias, F., …Monkman, A. (2016). High efficiency OLEDs based on anthracene derivatives: The impact of electron donating and withdrawing group on the performance of OLED. Organic Electronics, 30, https://doi.org/10.1016/j.orgel.2015.11.026
• Dias, F. B. (2015). Kinetics of thermal-assisted delayed fluorescence in blue organic emitters with large singlet–triplet energy gap. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373(2044), Article 20140447. https://doi.org/10.1098/rsta.2014.0447
• Aydemir, M., Jankus, V., Dias, F. B., & Monkman, A. P. (2015). Inter/intrachain interactions behind the formation of charge transfer states in polyspirobifluorene: A case study for complex excited-state dynamics in different polarity index solvents. Journal of Physical Chemistry C, 119(11), 5855-5863. https://doi.org/10.1021/jp512467g
• Aydemir, M., Haykir, G., Turksoy, F., Gumus, S., Dias, F., & Monkman, A. (2015). Synthesis and investigation of intra-molecular charge transfer state properties of novel donor-acceptor-donor pyridine derivatives: the effects of temperature and environment on molecular configurations and the origin of delayed fluorescence. Physical Chemistry Chemical Physics, 17(38), 25572-25582. https://doi.org/10.1039/c5cp03937a
• Dias, F., Graves, D., Jankus, V., & Monkman, A. (2015). Effect of Singlet Triplet Recycling in the Charge Transfer State Manifold and Molecular Geometry on Thermally Activated Delayed Fluorescence. SID Symposium Digest of Technical Papers, 46(1), https://doi.org/10.1002/sdtp.10440
• Jankus, V., Data, P., Graves, D., McGuinness, C., Santos, J., Bryce, M., …Monkman, A. (2014). Highly Efficient TADF OLEDs: How the Emitter–Host Interaction Controls Both the Excited State Species and Electrical Properties of the Devices to Achieve Near 100% Triplet Harvesting and High Efficiency. Advanced Functional Materials, 24(39), 6178-6186. https://doi.org/10.1002/adfm.201400948
• Szablewski, M., Fox, M., Dias, F., Namih, H., Snedden, E., King, S., …Pålsson, L. (2014). Ultrafast Dynamics and Computational Studies on Diaminodicyanoquinodimethanes (DADQs). Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 118(24), 6815-6828. https://doi.org/10.1021/jp411358d
• Aydemir, M., Jankus, V., Dias, F., & Monkman, A. (2014). The key role of geminate electron–hole pair recombination in the delayed fluorescence in rhodamine 6G and ATTO-532. Physical Chemistry Chemical Physics, 16(39), https://doi.org/10.1039/c4cp01675k
• 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
• Snedden, E. W., Monkman, A. P., & Dias, F. B. (2013). Photophysics of the Geminate Polaron-Pair State in Copper Phthalocyanine Organic Photovoltaic Blends: Evidence for Enhanced Intersystem Crossing. Advanced Materials, 25(13), 1930-1938. https://doi.org/10.1002/adma.201201350
• 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
• Graves, D., Jankus, V., Dias, F., & Monkman, A. (2013). Photophysical Investigation of the Thermally Activated Delayed Emission from Films of m-MTDATA:PBD Exciplex. Advanced Functional Materials, 24(16), https://doi.org/10.1002/adfm.201303389
• Nobuyasu, R., Araujo, K., Cury, L., Jarrosson, T., Serein-Spirau, F., Lère-Porte, J., …Monkman, A. (2013). Interfacial exciplex formation in bilayers of conjugated polymers. The Journal of Chemical Physics, 139(16), https://doi.org/10.1063/1.4827097
• Andres-Tome, I., Fyson, J., Dias, F. B., Monkman, A. P., Iacobellis, G., & Coppo, P. (2012). Copper(I) complexes with bipyridyl and phosphine ligands: a systematic study. Dalton Transactions, 41(28), 8669-8674. https://doi.org/10.1039/c2dt30698k
• Snedden, E. W., Monkman, A. P., & Dias, F. B. (2012). Kinetic Studies of Geminate Polaron Pair Recombination, Dissociation, and Efficient Triplet Exciton Formation in PC:PCBM Organic Photovoltaic Blends. Journal of Physical Chemistry C, 116(7), 4390-4398. https://doi.org/10.1021/jp208820g
• Snedden, E., Monkman, A., & Dias, F. (2012). Photophysics of Charge Generation in Organic Photovoltaic Materials: Kinetic Studies of Geminate and Free Polarons in a Model Donor/Acceptor System. Journal of Physical Chemistry C, 116(1), 86-97. https://doi.org/10.1021/jp206840m
• Zheng, Y., Batsanov, A., Jankus, V., Dias, F., Bryce, M., & Monkman, A. (2011). Bipolar Molecules with High Triplet Energies: Synthesis, Photophysical, and Structural Properties. Journal of Organic Chemistry, 76(20), 8300-8310. https://doi.org/10.1021/jo201488v
• King, S., Cass, M., Pintani, M., Coward, C., Dias, F., Monkman, A., & Roberts, M. (2011). The contribution of triplet-triplet annihilation to the lifetime and efficiency of fluorescent polymer organic light emitting diodes. Journal of Applied Physics, 109(7), Article 074502. https://doi.org/10.1063/1.3561430
• Cury, L., Bourdakos, K., Dai, D., Dias, F., & Monkman, A. (2011). Long range energy transfer in conjugated polymer sequential bilayers. The Journal of Chemical Physics, 134(10), Article 104903. https://doi.org/10.1063/1.3560164
• Santos, P., Costa, B., Araujo, K., Cury, L., Snedden, E., Bourdakos, K., …Monkman, A. (2011). Measurement of interchain and intrachain exciton hopping barriers in luminescent polymer. Journal of Physics: Condensed Matter, 24(1), https://doi.org/10.1088/0953-8984/24/1/015801
• Palsson, L., Nehls, B., Galbrecht, F., Coombs, B., Dias, F., Farrell, T., …Monkman, A. (2010). Synthesis, Excited State Dynamics, and Optical Characteristics of Oligophenyl-Based Swivel Cruciforms in Solution and Solid State. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 114(40), 12765-12776. https://doi.org/10.1021/jp1028883
• Moss, K., Bourdakos, K., Bhalla, V., Kamtekar, K., Bryce, M., Fox, M., …Monkman, A. (2010). Tuning the Intramolecular Charge Transfer Emission from Deep Blue to Green in Ambipolar Systems Based On Dibenzothiophene S S-Dioxide by Manipulation of Conjugation and Strength of the Electron Donor Units. Journal of Organic Chemistry, 75(20), 6771-6781. https://doi.org/10.1021/jo100898a
• Li, H., Batsanov, A., Moss, K., Vaughan, H., Dias, F., Kamtekar, K., …Monkman, A. (2010). The interplay of conformation and photophysical properties in deep-blue fluorescent oligomers. Chemical Communications, 46(26), 4812-4814. https://doi.org/10.1039/c0cc00211a
• 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
• Pinto, S. M., Burrows, H. D., Pereira, M. M., Fonseca, S. M., Dias, F. B., Mallavia, R., & Tapia, M. J. (2009). Singlet-singlet energy transfer in self-assembled systems of the cationic poly{9,9-bis[6-N,N,N-trimethylammonium)hexyl]fluorene-co-1,4-phenylene} with oppositely charged porphyrins. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 113(50), 16093-100. https://doi.org/10.1021/jp904959h
• Brendel, C., Dias, F., Saragi, T., Monkman, A., & Salbeck, J. (2009). Photophysical properties of the asymmetrically substituted spirobifluorenes spiro-DPO and spiro-MeO-DPO. physica status solidi (a) – applications and materials science, 206(12), 2715-2722. https://doi.org/10.1002/pssa.200925302
• 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
• 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
• 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
• 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
• King, S., Matheson, R., Dias, F., & Monkman, A. (2008). Enhanced triplet formation by twisted intramolecular charge-transfer excited states in conjugated oligomers and polymers. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 112(27), 8010-8016. https://doi.org/10.1021/jp712163b
• Dias, F., King, S., Monkman, A., Perepichka, I., Kryuchkov, M., Perepichka, I., & Bryce, M. (2008). Dipolar stabilization of emissive singlet charge transfer excited states in polyfluorene copolymers. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 112(21), 6557-6566. https://doi.org/10.1021/jp800068d
• Narayanan, S., Sarkar, R., Sinha, S., Dias, F., Monkman, A., & Pal, S. (2008). Luminescence depolarization dynamics of quantum dots: Is it hydrodynamic rotation or exciton migration?. Journal of Physical Chemistry C, 112(9), 3423-3428. https://doi.org/10.1021/jp710354z
• Knaapila, M., Dias, F., Garamus, V., Almasy, L., Torkkeli, M., Leppanen, K., …Monkman, A. (2007). Influence of side chain length on the self-assembly of hairy-rod poly(9,9-dialkylfluorene)s in the poor solvent methylcyclohexane. Macromolecules, 40(26), 9398-9405
• Sarkar, R., Narayanan, S., Palsson, L., Dias, F., Monkman, A., & Pal, S. (2007). Direct conjugation of semiconductor nanocrystals to a globular protein to study protein-folding intermediates. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 111, 12294-12298. https://doi.org/10.1021/jp075239h
• Dias, F., Pollock, S., Hedley, G., Palsson, L., Monkman, A., Perepichka, I., …Bryce, M. (2006). Intramolecular charge transfer assisted by conformational changes in the excited state of fluorene-dibenzothiophene-S,S-dioxide co-oligomers. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 110(39), 19329-19339. https://doi.org/10.1021/jp0643653
• Sarkar, R., Shaw, A., Narayanan, S., Dias, F., Monkman, A., & Pal, S. (2006). Direct observation of protein folding in nanoenvironments using a molecular ruler. Biophysical Chemistry, 123(1), 40-48. https://doi.org/10.1016/j.bpc.2006.04.006
• Dias, F., Knaapila, M., Monkman, A., & Burrows, H. (2006). Fast and slow time regimes of fluorescence quenching in conjugated polyfluorene-fluorenone random copolymers: The role of exciton hopping and dexter transfer along the polymer backbone. Macromolecules, 39(4), 1598-1606
• Dias, F., Morgado, J., Macanita, A., da Costa, F., Burrows, H., & Monkman, A. (2006). Kinetics and thermodynamics of poly(9,9-dioctylfluorene) beta-phase formation in dilute solution. Macromolecules, 39(17), 5854-5864. https://doi.org/10.1021/ma0602932
• Knaapila, M., Garamus, V., Dias, F., Almasy, L., Galbrecht, F., Charas, A., …Monkman, A. (2006). Influence of solvent quality on the self-organization of archetypical hairy rods - Branched and linear side chain polyfluorenes: Rodlike chains versus "beta-sheets" in solution. Macromolecules, 39(19), 6505-6512. https://doi.org/10.1021/ma060886c
• Pina, J., Burrows, H., Becker, R., Dias, F., Macanita, A., & de Melo, J. (2006). Photophysical studies of alpha,omega-dicyano-oligothiophenes NC(C4H2S)nCN (n=1-6). Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 110(13), 6499-6505. https://doi.org/10.1021/jp055455v
• Hintschich, S., Dias, F., & Monkman, A. (2006). Dynamics of conformational relaxation in photoexcited oligofluorenes and polyfluorene. Physical review B, 74(4), https://doi.org/10.1103/physrevb.74.045210
• Bettington, S., Tavasli, M., Bryce, M., Batsanov, A., Thompson, A., Al Attar, H., …Monkman, A. (2006). Bridged diiridium complexes for electrophosphorescent OLEDs : synthesis, X-ray crystal structures, photophysics, and devices. Journal of materials chemistry, 16(11), 1046-1052. https://doi.org/10.1039/b515258e
• Dias, F., Maiti, M., Hintschich, S., & Monkman, A. (2005). Intramolecular fluorescence quenching in luminescent copolymers containing fluorenone and fluorene units: A direct measurement of intrachain exciton hopping rate. The Journal of Chemical Physics, 122(5), Article 054904. https://doi.org/10.1063/1.1834496
• Vaughan, H., Dias, F., & Monkman, A. (2005). An investigation into the excitation migration in polyfluorene solutions via temperature dependent fluorescence anisotropy. The Journal of Chemical Physics, 122(1), Article 014902. https://doi.org/10.1063/1.1829035
• Becker, R., Favaro, G., Romani, A., Gentili, P., & Dias, F. (2005). Vibronic effects in pathways of photochemistry and vibrational relaxation. Chemical Physics, 316(1-3), 108-116. https://doi.org/10.1016/j.chemphys.2005.05.008
• Tavasli, M., Bettington, S., Bryce, M., Al Attar, H., Dias, F., King, S., & Monkman, A. (2005). Oligo(fluorenyl) pyridine ligands and their tris-cyclometalated iridium(III) complexes: synthesis, photophysical properties and electrophosphorescent devices. Journal of materials chemistry, 15(46), 4963-4970
• Rothe, C., King, S., Dias, F., & Monkman, A. (2004). Triplet exciton state and related phenomena in the beta-phase of poly(9,9-dioctyl)fluorene. Physical review B, 70(19), https://doi.org/10.1103/physrevb.70.195213
• Dias, F., Macanita, A., de Melo, J., Burrows, H., Guntner, R., Scherf, U., & Monkman, A. (2003). Picosecond conformational relaxation of singlet excited polyfluorene in solution. The Journal of Chemical Physics, 118(15), 7119-7126. https://doi.org/10.1063/1.1560939
• Dias, F., Lima, J., Horta, A., Pierola, I., & Macanita, A. (2002). Dynamics of linear poly(methylphenylsiloxane) by time-resolved fluorescence: Slow vs fast relaxations and low-temperature behavior in chains of different lengths. Macromolecules, 35(18), 7082-7088. https://doi.org/10.1021/ma020402m
• Dias, F., Lima, J., Pierola, I., Horta, A., & Macanita, A. (2001). Internal dynamics of poly(methylphenylsiloxane) chains as revealed by picosecond time resolved fluorescence. The Journal of Physical Chemistry A, 105(45), 10286-10295. https://doi.org/10.1021/jp010547f
• Dias, F., Lima, J., Macanita, A., Clarson, S., Horta, A., & Pierola, I. (2000). Anomalous fluorescence of linear poly(methylphenylsiloxane) in dilute solution at temperatures below-50 degrees C. Macromolecules, 33(13), 4772-4779
• Dias, F., Lima, J., Macanita, A., Horta, A., & Pierola, I. (2000). Dynamics of cyclic methylphenyltrisiloxane in the picosecond to nanosecond time range. The Journal of Physical Chemistry A, 104(1), 17-24