Outputs (1600)

Identifying the Factors That Lead to PLQY Enhancement in Diluted TADF Exciplexes Based on Carbazole Donors (2019)
Journal Article
Colella, M., Danos, A., & Monkman, A. P. (2019). Identifying the Factors That Lead to PLQY Enhancement in Diluted TADF Exciplexes Based on Carbazole Donors. Journal of Physical Chemistry C, 123(28), 17318-17324. https://doi.org/10.1021/acs.jpcc.9b03538

Here we compare the effects of solid-state dilution on the photophysical and electrical performance of three TADF exciplexes based on carbazole containing donors with a high-performance acceptor PO-T2T. We observe intrinsically different photophysica... Read More about Identifying the Factors That Lead to PLQY Enhancement in Diluted TADF Exciplexes Based on Carbazole Donors.

Metal-insulator-metal diodes based on alkyltrichlorosilane self-assembled monolayers (2019)
Journal Article
Jin, J., Wang, L., Zheng, Z., Zhang, J., Hu, X., Lu, J. R., Etor, D., Pearson, C., Song, A., Wood, D., Gallant, A. J., & Balocco, C. (2019). Metal-insulator-metal diodes based on alkyltrichlorosilane self-assembled monolayers. AIP Advances, 9(6), https://doi.org/10.1063/1.5100252

This paper reports on the experimental investigation of metal-insulator-metal (MIM) diodes based on alkyltrichlorosilane self-assembled monolayers (SAMs) with different alkyl chain lengths. The insulating SAM is sandwiched between two metal contacts,... Read More about Metal-insulator-metal diodes based on alkyltrichlorosilane self-assembled monolayers.

On the application of the Spiegler-Kedem model to forward osmosis (2019)
Journal Article
Wu, J. J. (2019). On the application of the Spiegler-Kedem model to forward osmosis. BMC chemical engineering, 1, Article 15. https://doi.org/10.1186/s42480-019-0014-8

In Forward Osmosis the diffusion of the solute is counter to that of the solvent i.e. there is so-called “reverse salt diffusion”. Furthermore, the ratio of the two fluxes is generally taken to be a constant because of the assumption of ideal semi-pe... Read More about On the application of the Spiegler-Kedem model to forward osmosis.

Organic electronic memory devices (2019)
Book Chapter
Petty, M. C. (2019). Organic electronic memory devices. In O. Ostroverkhova (Ed.), Handbook of Organic Materials for Electronic and Photonic Devices (843-874). (2). Woodhead Publishing. https://doi.org/10.1016/b978-0-08-102284-9.00026-7

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.

Single-Phase White-Emitting Phosphors Based on Apatite-Type Gadolinium Silicate, Gd9.33(SiO4)6O2 Doped with Dy3+, Eu3+ and Tb3+ (2019)
Journal Article
Rodriguez-Garcia, M. M., Williams, J. G., & Evans, I. R. (2019). Single-Phase White-Emitting Phosphors Based on Apatite-Type Gadolinium Silicate, Gd9.33(SiO4)6O2 Doped with Dy3+, Eu3+ and Tb3+. Journal of Materials Chemistry C Materials for optical and electronic devices, 7(25), 7779-7787. https://doi.org/10.1039/c9tc02336d

Two series of new apatite-type silicate materials were synthesised and characterised with the aim of achieving white light emission from single-phase phosphors. The Gd9.33(SiO4)6O2 host was doped systematically with Dy3+, Tb3+ and Eu3+ to tune the em... Read More about Single-Phase White-Emitting Phosphors Based on Apatite-Type Gadolinium Silicate, Gd9.33(SiO4)6O2 Doped with Dy3+, Eu3+ and Tb3+.

Electroabsorption Spectroscopy as a Tool to Probe Charge-Transfer and State Mixing in Thermally-Activated Delayed Fluorescence Emitters (2019)
Journal Article
De Sa Pereira, D., Menelaou, C., Danos, A., Marian, C. M., & Monkman, A. P. (2019). Electroabsorption Spectroscopy as a Tool to Probe Charge-Transfer and State Mixing in Thermally-Activated Delayed Fluorescence Emitters. Journal of Physical Chemistry Letters, 10(12), 3205-3211. https://doi.org/10.1021/acs.jpclett.9b00999

Solid-state electroabsorption is demonstrated as a powerful tool to probe the charge-transfer (CT) character and state mixing in the low energy optical transitions of two structurally similar thermally-activated delayed fluorescent (TADF) materials w... Read More about Electroabsorption Spectroscopy as a Tool to Probe Charge-Transfer and State Mixing in Thermally-Activated Delayed Fluorescence Emitters.

Delayed Blue Fluorescence via Upper-triplet State Crossing from C-C Bonded Donor-Acceptor Charge-Transfer Molecules with Azatriangulene cores (2019)
Journal Article
Ward, J., Kukhta, N., Dos Santos, P., Congrave, D., Batsanov, A., Monkman, A., & Bryce, M. (2019). Delayed Blue Fluorescence via Upper-triplet State Crossing from C-C Bonded Donor-Acceptor Charge-Transfer Molecules with Azatriangulene cores. Chemistry of Materials, 31(17), 6684-6695. https://doi.org/10.1021/acs.chemmater.9b01184

We report the synthesis and structural and photophysical characterization of two series of molecules with functionalized azatriangulene electron donor cores and three pendant electron acceptor units. The presented donor and acceptor units are joined... Read More about Delayed Blue Fluorescence via Upper-triplet State Crossing from C-C Bonded Donor-Acceptor Charge-Transfer Molecules with Azatriangulene cores.

Planck's generalised radiation law and its implications for cathodoluminescence spectra (2019)
Journal Article
Mendis, B. (2019). Planck's generalised radiation law and its implications for cathodoluminescence spectra. Ultramicroscopy, 204, 73-80. https://doi.org/10.1016/j.ultramic.2019.05.007

Cathodoluminescence (CL) is an important analytical technique for probing the optical properties of materials at high spatial resolution. Interpretation of CL spectra is however complicated by the fact that the spectrum depends on the carrier injecti... Read More about Planck's generalised radiation law and its implications for cathodoluminescence spectra.

Understanding the role of selenium in defect passivation for highly efficient selenium-alloyed cadmium telluride solar cells (2019)
Journal Article
Fiducia, T. A., Mendis, B. G., Li, K., Grovenor, C. R., Munshi, A. H., Barth, K., Sampath, W. S., Wright, L. D., Abbas, A., Bowers, J. W., & Walls, J. M. (2019). Understanding the role of selenium in defect passivation for highly efficient selenium-alloyed cadmium telluride solar cells. Nature Energy, 4, 504-511. https://doi.org/10.1038/s41560-019-0389-z

Electricity produced by cadmium telluride (CdTe) photovoltaic modules is the lowest-cost electricity in the solar industry, and now undercuts fossil fuel-based sources in many regions of the world. This is due to recent efficiency gains brought about... Read More about Understanding the role of selenium in defect passivation for highly efficient selenium-alloyed cadmium telluride solar cells.

A highly luminescent tetrahydrocurcumin Ir(III) complex with remarkable photoactivated anticancer activity (2019)
Journal Article
Dragonetti, C., Colombo, A., Fontani, M., Roberto, D., Williams, G., Scotto di Perrotolo, R., Casagrande, F., Barozzi, S., & Polo, S. (2019). A highly luminescent tetrahydrocurcumin Ir(III) complex with remarkable photoactivated anticancer activity. Chemistry - A European Journal, 25(33), 7948-7952. https://doi.org/10.1002/chem.201901527

Curcumin has chemopreventive properties against a variety of tumours, but it has poor bioavailability. Two new bis‐cyclometallated iridium(III) complexes have been prepared, featuring the natural product curcumin (CUR) or its reduced form, tetrahydro... Read More about A highly luminescent tetrahydrocurcumin Ir(III) complex with remarkable photoactivated anticancer activity.

Controlling the growth of single crystal ZnO nanowires by tuning the atomic layer deposition parameters of the ZnO seed layer (2019)
Journal Article
Galan-Gonzalez, A., Gallant, A., Zeze, D. A., & Atkinson, D. (2019). Controlling the growth of single crystal ZnO nanowires by tuning the atomic layer deposition parameters of the ZnO seed layer. Nanotechnology, 30(30), Article 305602. https://doi.org/10.1088/1361-6528/ab186a

Semiconducting nanowires (NWs) offer exciting prospects for a wide range of technological applications. The translation of NW science into technology requires reliable high quality large volume production. This study provides an in-depth investigatio... Read More about Controlling the growth of single crystal ZnO nanowires by tuning the atomic layer deposition parameters of the ZnO seed layer.

Light‐Emitting Transistors Based on Solution‐Processed Heterostructures of Self‐Organized Multiple‐Quantum‐Well Perovskite and Metal‐Oxide Semiconductors (2019)
Journal Article
Chaudhry, M. U., Wang, N., Tetzner, K., Seitkhan, A., Miao, Y., Sun, Y., Petty, M. C., Anthopoulos, T. D., Wang, J., & Bradley, D. D. (2019). Light‐Emitting Transistors Based on Solution‐Processed Heterostructures of Self‐Organized Multiple‐Quantum‐Well Perovskite and Metal‐Oxide Semiconductors. Advanced Electronic Materials, 5(7), Article 1800985. https://doi.org/10.1002/aelm.201800985

Solution‐processed hybrid organic–inorganic perovskite semiconductors have demonstrated remarkable performance for both photovoltaic and light‐emitting‐diode applications in recent years, launching a new field of condensed matter physics. However, th... Read More about Light‐Emitting Transistors Based on Solution‐Processed Heterostructures of Self‐Organized Multiple‐Quantum‐Well Perovskite and Metal‐Oxide Semiconductors.

Intramolecular Dimerization Quenching of Delayed Emission in Asymmetric D-D’-A TADF Emitters (2019)
Journal Article
Woon, K. L., Yi, C.-L., Pan, K.-C., Etherington, M. K., Wu, C.-C., Wong, K.-T., & Monkman, A. P. (2019). Intramolecular Dimerization Quenching of Delayed Emission in Asymmetric D-D’-A TADF Emitters. Journal of Physical Chemistry C, 123(19), 12400-12410. https://doi.org/10.1021/acs.jpcc.9b01900

Understanding the excited-state dynamics and conformational relaxation in thermallyactivated delayed fluorescence (TADF) molecules, including conformations that potentially support intramolecular through-space charge transfer, can open new avenues fo... Read More about Intramolecular Dimerization Quenching of Delayed Emission in Asymmetric D-D’-A TADF Emitters.

Fully depleted emitter layers: a novel method to improve band alignment in thin-film solar cells (2019)
Journal Article
Mendis, B. (2019). Fully depleted emitter layers: a novel method to improve band alignment in thin-film solar cells. Semiconductor Science and Technology, 34(5), Article 055008. https://doi.org/10.1088/1361-6641/ab0c2b

The interface between the emitter and absorber layers in a thin-film solar cell must satisfy two important criteria, namely a small lattice mismatch and electron barrier height. It is shown that the barrier height is lowered when the emitter is fully... Read More about Fully depleted emitter layers: a novel method to improve band alignment in thin-film solar cells.

Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials (2019)
Journal Article
Etherington, M. K., Kukhta, N. A., Higginbotham, H. F., Danos, A., Bismillah, A. N., Graves, D. R., McGonigal, P. R., Haase, N., Morherr, A., Batsanov, A. S., Pflumm, C., Bhalla, V., Bryce, M. R., & Monkman, A. P. (2019). Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials. Journal of Physical Chemistry C, 123(17), 11109-11117. https://doi.org/10.1021/acs.jpcc.9b01458

We expose significant changes in emission color of carbazole-based thermally activated delayed fluorescence (TADF) emitters that arise through the presence of persistent dimer states in thin films and organic light-emitting diodes(OLEDs). Direct phot... Read More about Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials.

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.

An enantiopure cyclometallated iridium complex displaying long-lived phosphorescence both in solution and in the solid state (2019)
Journal Article
Crassous, J., Macé, A., Hellou, N., Hammoud, J., Martin, C., Nasser, G., Gauthier, E., Favereau, L., Roisnel, T., Caytan, E., Vanthuyne, N., Williams, G., Berrée, F., & Carboni, B. (2019). An enantiopure cyclometallated iridium complex displaying long-lived phosphorescence both in solution and in the solid state. Helvetica Chimica Acta, 102(4), https://doi.org/10.1002/hlca.201900044

A new enantiopure cyclometallated iridium complex bearing a [4]helicenic :C^C– and two :N^C– dfppy (2‐(2,4‐difluorophenyl)‐pyridyl) ligands was prepared. This complex revealed a long‐lived phosphorescence both in solution and in the solid state. Its... Read More about An enantiopure cyclometallated iridium complex displaying long-lived phosphorescence both in solution and in the solid state.

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.