Dr Fernando Dias' Outputs (10)

Silica nanoparticles with thermally activated delayed fluorescence for live cell imaging (2019)
Journal Article
Crucho, C. I., Avó, J., Nobuyasu, R., N. Pinto, S., Fernandes, F., Lima, J. C., Berberan-Santos, M. N., & 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

Thermally activated delayed fluorescence (TADF) has revolutionized the field of organic light emitting diodes owing to the possibility of harvesting non-emissive triplet states and converting them in emissive singlet states. This mechanism generates... Read More about Silica nanoparticles with thermally activated delayed fluorescence for live cell imaging.

Balancing charge-transfer strength and triplet states for deep-blue thermally activated delayed fluorescence with an unconventional electron rich dibenzothiophene acceptor (2019)
Journal Article
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

Manipulation of the emission properties of deep-blue emitters exhibiting thermally activated delayed fluorescence (TADF) through molecular design is challenging. We present an effective strategy to probe deeper into the role of localized (LE) and cha... Read More about Balancing charge-transfer strength and triplet states for deep-blue thermally activated delayed fluorescence with an unconventional electron rich dibenzothiophene acceptor.

Achieving Conformational Control in RTP and TADF Emitters by Functionalization of the Central Core (2019)
Journal Article
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

Three new symmetrical donor–acceptor–donor (D–A–D)-type molecules were prepared with phenothiazine (PTZ) as electron donors and 9,9-dimethylthioxanthene (TX) as the electron acceptor. The PTZ groups are attached at different positions on the acceptor... Read More about Achieving Conformational Control in RTP and TADF Emitters by Functionalization of the Central Core.

The influence of molecular geometry on the efficiency of thermally activated delayed fluorescence (2019)
Journal Article
Nobuyasu, R. S., Ward, J. S., Gibson, J., Laidlaw, B. A., Ren, Z., Data, P., Batsanov, A. S., Penfold, T. J., Bryce, M. R., & 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

In this work we successfully developed a strategy for positively influencing the conformation of thermally activated delayed fluorescence (TADF) molecules containing phenothiazine as the electron donor (D) unit, and dibenzothiophene-S,S-dioxide as th... Read More about The influence of molecular geometry on the efficiency of thermally activated delayed fluorescence.

Impact of Methoxy Substituents on Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence in All-Organic Donor–Acceptor Systems (2019)
Journal Article
Ward, J. S., Nobuyasu, R. S., Fox, M. A., Aguilar, J. A., Hall, D., Batsanov, A. S., Ren, Z., Dias, F. B., & 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

Thermally activated delayed fluorescence (TADF) and room-temperature phosphorescence (RTP) are known to occur in organic D–A–D and D–A systems where the donor group contains the phenothiazine unit and the acceptor is dibenzothiophene-S,S-dioxide. Thi... Read More about Impact of Methoxy Substituents on Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence in All-Organic Donor–Acceptor Systems.

Homoleptic platinum(ii) complexes with pyridyltriazole ligands: excimer-forming phosphorescent emitters for solution-processed OLEDs (2019)
Journal Article
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

Two new homoleptic platinum(II) complexes are reported that feature aryl-appended 5-(2-pyridyl)-1,2,4- triazole chelates acting as N^N ligating ions, PtL1 2 and PtL2 2. Readily prepared from easily accessible proligands, they offer good solubility in... Read More about Homoleptic platinum(ii) complexes with pyridyltriazole ligands: excimer-forming phosphorescent emitters for solution-processed OLEDs.

Realizing 20% External Quantum Efficiency in Electroluminescence with Efficient Thermally Activated Delayed Fluorescence from an Exciplex (2019)
Journal Article
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

Herein we report the investigation of non-doped exciplex formed in blends of 2,4,6-Tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine (PO-T2T), working as the one-electron acceptor molecule, with different electron donors. The emission of these excipl... Read More about Realizing 20% External Quantum Efficiency in Electroluminescence with Efficient Thermally Activated Delayed Fluorescence from an Exciplex.

Blue TADF Emitters Based on Indenocarbazole Derivatives with High Photoluminescence and Electroluminescence Efficiencies (2019)
Journal Article
Lv, X., Huang, R., Sun, S., Zhang, Q., Xiang, S., Ye, S., Leng, P., Dias, F. B., & 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

A series of blue thermally activated delayed fluorescence (TADF) emitters were designed and synthesized, using 2,4,6-triphenyl-1,3,5-triazine as the acceptor unit, and indenocarbazole derivatives as the electron-donating moiety. In contrast with othe... Read More about Blue TADF Emitters Based on Indenocarbazole Derivatives with High Photoluminescence and Electroluminescence Efficiencies.

Dinuclear Design of a Pt(II) Complex Affording Highly Efficient Red Emission: Photophysical Properties and Application in Solution-Processible OLEDs (2019)
Journal Article
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

The light-emitting efficiency of luminescent materials is invariably compromised on moving to the red and near-infrared regions of the spectrum due to the transfer of electronic excited-state energy into vibrations. We describe how this undesirable “... Read More about Dinuclear Design of a Pt(II) Complex Affording Highly Efficient Red Emission: Photophysical Properties and Application in Solution-Processible OLEDs.

Dynamics of aggregated states resolved by gated fluorescence in films of room temperature phosphorescent emitters (2019)
Journal Article
dos Santos, P. L. L., Silveira, O. J., Huang, R., Jardim, G., Matos, M. J. S., da Silva Júnior, E. N., Monkman, A. P., Dias, F. B., & 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

Phenazine derivative molecules were studied using steady state and time resolved fluorescence techniques and demonstrated to lead to strong formation of aggregated species, identified as dimers by time dependent density functional theory calculations... Read More about Dynamics of aggregated states resolved by gated fluorescence in films of room temperature phosphorescent emitters.