Dr Andrew Danos
Lecturer in Experimental Condensed Matter Physics
School of Physical and Chemical Sciences
Queen Mary University of London
Queen Mary University of London
Research
Organic Electronics, Spectroscopy, Physical Chemistry
Interests
Fundamental studies of photophysical processes of molecular excitons, such as triplet-triplet annihilation, thermally activated delayed fluorescence, and room temperature phosphorescence. Designing and interpreting time-resolved and temperature-dependent emission/absorption spectroscopy of these materials, building on wide skills in laser spectroscopy. Parallel expertise in device fabrication and characterisation support the application of these materials in optoelectronic devices such as OLEDs.Publications
Publications of specific relevance to the Centre for Experimental and Applied Physics2024
Dos Santos JM, Hall D, Basumatary B, Bryden M, Chen D, Choudhary P, Comerford T, Crovini E, Danos A, De J, Diesing S, Fatahi M, Griffin M, Gupta AK, Hafeez H, Hämmerling L, Hanover E, Haug J, Heil T, Karthik D, et al. (2024). The Golden Age of Thermally Activated Delayed Fluorescence Materials: Design and Exploitation. Chemical Reviews, American Chemical Society (ACS) 12-12-2024
Carrod AJ, Berghuis AM, Gopalakrishnan VN, Monkman A, Danos A and Börjesson K (2024). Separating triplet exciton diffusion from triplet–triplet annihilation by the introduction of a mediator. Chemical Science, Royal Society of Chemistry (RSC) (Immediate Access) 09-12-2024
Karakurt O, Demirgezer EF, Dastemir M, Cakmaktepe SC, Miranda-Salinas H, Aksoy E, Danos A, Monkman A, Yildirim E and Cirpan A (2024). Design and performance of sulfur and selenium-substituted triarylboron D3-A TADF emitters for OLED applications. Organic Electronics, Elsevier vol. 134 01-11-2024
Mattiello S, Danos A, Stavrou K, Ronchi A, Baranovski R, Florenzano D, Meinardi F, Beverina L, Monkman A and Monguzzi A (2024). Diffusion‐Free Intramolecular Triplet–Triplet Annihilation Contributes to the Enhanced Exciton Utilization in OLEDs. Advanced Optical Materials, Wiley vol. 12 (33) 09-10-2024
Öner S, Kuila S, Stavrou K, Danos A, Fox MA, Monkman AP and Bryce MR (2024). Exciplex, Not Heavy-Atom Effect, Controls the Triplet Dynamics of a Series of Sulfur-Containing Thermally Activated Delayed Fluorescence Molecules. Chemistry of Materials, American Chemical Society (ACS) vol. 36 (15), 7135-7150. 02-08-2024
Stavrou K, Franca LG, Danos A and Monkman AP (2024). Key requirements for ultraefficient sensitization in hyperfluorescence organic light-emitting diodes. Nature Photonics, Springer Nature vol. 18 (6), 554-561. 13-02-2024
Franca LG, Danos A, Saxena R, Kuila S, Stavrou K, Li C, Wedler S, Köhler A and Monkman AP (2024). Exploring the Early Time Behavior of the Excited States of an Archetype Thermally Activated Delayed Fluorescence Molecule. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 15 (6), 1734-1740. 07-02-2024
Brebels S, Cardeynaels T, Jackers L, Kuila S, Penxten H, Salthouse RJ, Danos A, Monkman AP, Champagne B and Maes W (2024). Isomeric modulation of thermally activated delayed fluorescence in dibenzo[ a , c ]phenazine-based (deep) red emitters. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 12 (25), 9255-9265. 01-01-2024
Miranda-Salinas H, Wang J, Danos A, Matulaitis T, Stavrou K, Monkman AP and Zysman-Colman E (2024). Peripheral halogen atoms in multi-resonant thermally activated delayed fluorescence emitters: the role of heavy atoms in intermolecular interactions and spin orbit coupling. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 12 (6), 1996-2006. 01-01-2024
2023
Alanazi F, Eggeman AS, Stavrou K, Danos A, Monkman AP and Mendis BG (2023). Quantifying Molecular Disorder in Tri-Isopropyl Silane (TIPS) Pentacene Using Variable Coherence Transmission Electron Microscopy. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 14 (36), 8183-8190. 06-09-2023
Paredis S, Cardeynaels T, Kuila S, Deckers J, Van Landeghem M, Vandewal K, Danos A, Monkman AP, Champagne B and Maes W (2023). Balanced Energy Gaps as a Key Design Rule for Solution‐Phase Organic Room Temperature Phosphorescence. Chemistry - A European Journal, Wiley vol. 29 (42) 13-06-2023
Sudhakar P, Kuila S, Stavrou K, Danos A, Slawin AMZ, Monkman A and Zysman-Colman E (2023). Azaborine as a Versatile Weak Donor for Thermally Activated Delayed Fluorescence. ACS Applied Materials & Interfaces, American Chemical Society (ACS) vol. 15 (21), 25806-25818. 18-05-2023
Franca LG, Danos A and Monkman A (2023). Donor, Acceptor, and Molecular Charge Transfer Emission All in One Molecule. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 14 (11), 2764-2771. 10-03-2023
Saha PK, Mallick A, Turley AT, Bismillah AN, Danos A, Monkman AP, Avestro A-J, Yufit DS and McGonigal PR (2023). Rupturing aromaticity by periphery overcrowding. Nature Chemistry, Springer Nature vol. 15 (4), 516-525. 06-03-2023
Salah L, Makhseed S, Ghazal B, Abdel Nazeer A, Etherington MK, Ponseca CS, Li C, Monkman AP, Danos A and Shuaib A (2023). Covalently linked pyrene antennas for optically dense yet aggregation-resistant light-harvesting systems. Physical Chemistry Chemical Physics, Royal Society of Chemistry (RSC) vol. 25 (36), 24878-24882. 01-01-2023
Paredis S, Cardeynaels T, Brebels S, Deckers J, Kuila S, Lathouwers A, Van Landeghem M, Vandewal K, Danos A, Monkman AP, Champagne B and Maes W (2023). Intramolecular locking and coumarin insertion: a stepwise approach for TADF design. Physical Chemistry Chemical Physics, Royal Society of Chemistry (RSC) vol. 25 (43), 29842-29849. 01-01-2023
2022
Sharif P, Alemdar E, Ozturk S, Caylan O, Haciefendioglu T, Buke G, Aydemir M, Danos A, Monkman AP, Yildirim E, Gunbas G, Cirpan A and Oral A (2022). Rational Molecular Design Enables Efficient Blue TADF−OLEDs with Flexible Graphene Substrate. Advanced Functional Materials, Wiley vol. 32 (47) 22-09-2022
Hempe M, Kukhta NA, Danos A, Batsanov AS, Monkman AP and Bryce MR (2022). Intramolecular Hydrogen Bonding in Thermally Activated Delayed Fluorescence Emitters: Is There Evidence Beyond Reasonable Doubt? The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 13 (35), 8221-8227. 25-08-2022
Kelly D, Franca LG, Stavrou K, Danos A and Monkman AP (2022). Laplace Transform Fitting as a Tool To Uncover Distributions of Reverse Intersystem Crossing Rates in TADF Systems. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 13 (30), 6981-6986. 26-07-2022
Stavrou K, Suresh SM, Hall D, Danos A, Kukhta NA, Slawin AMZ, Warriner S, Beljonne D, Olivier Y, Monkman A and Zysman‐Colman E (2022). Emission and Absorption Tuning in TADF B,N‐Doped Heptacenes: Toward Ideal‐Blue Hyperfluorescent OLEDs. Advanced Optical Materials, Wiley vol. 10 (17) 14-06-2022
Haykir G, Aydemir M, Tekin A, Tekin E, Danos A, Yuksel F, Hizal G, Monkman AP and Turksoy F (2022). Effects of donor position and multiple charge transfer pathways in asymmetric pyridyl-sulfonyl TADF emitters. Materials Today Communications, Elsevier vol. 31 01-06-2022
Turley AT, Saha PK, Danos A, Bismillah AN, Monkman AP, Yufit DS, Curchod BFE, Etherington MK and McGonigal PR (2022). Extended Conjugation Attenuates the Quenching of Aggregation‐Induced Emitters by Photocyclization Pathways. Angewandte Chemie International Edition, Wiley vol. 61 (24) 13-04-2022
AKSOY E, DANOS A, Lİ C, MONKMAN A and VARLIKLI C (2022). The Effect of Imide Substituents on the Excited State Properties of Perylene Diimide Derivatives. Turkish Journal of Science and Technology, Firat Universitesi vol. 17 (1), 11-21. 20-03-2022
Maggiore A, Tan X, Brosseau A, Danos A, Miomandre F, Monkman AP, Audebert P and Clavier G (2022). Novel D–A chromophores with condensed 1,2,4-triazine system simultaneously display thermally activated delayed fluorescence and crystallization-induced phosphorescence. Physical Chemistry Chemical Physics, Royal Society of Chemistry (RSC) vol. 24 (29), 17770-17781. 01-01-2022
Hall D, Stavrou K, Duda E, Danos A, Bagnich S, Warriner S, Slawin AMZ, Beljonne D, Köhler A, Monkman A, Olivier Y and Zysman-Colman E (2022). Diindolocarbazole – achieving multiresonant thermally activated delayed fluorescence without the need for acceptor units. Materials Horizons, Royal Society of Chemistry (RSC) vol. 9 (3), 1068-1080. 01-01-2022
Paredis S, Cardeynaels T, Deckers J, Danos A, Vanderzande D, Monkman AP, Champagne B and Maes W (2022). Bridge control of photophysical properties in benzothiazole-phenoxazine emitters – from thermally activated delayed fluorescence to room temperature phosphorescence. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 10 (12), 4775-4784. 01-01-2022
Sem S, Jenatsch S, Stavrou K, Danos A, Monkman AP and Ruhstaller B (2022). Determining non-radiative decay rates in TADF compounds using coupled transient and steady state optical data. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 10 (12), 4878-4885. 01-01-2022
Franca LG, Danos A and Monkman A (2022). Spiro donor–acceptor TADF emitters: naked TADF free from inhomogeneity caused by donor acceptor bridge bond disorder. Fast rISC and invariant photophysics in solid state hosts. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 10 (4), 1313-1325. 01-01-2022
Danos A, Gudeika D, Kukhta NA, Lygaitis R, Colella M, Higginbotham HF, Bismillah AN, McGonigal PR, Grazulevicius JV and Monkman AP (2022). Not the sum of their parts: understanding multi-donor interactions in symmetric and asymmetric TADF emitters. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 10 (12), 4737-4747. 01-01-2022
2021
Haykir G, Aydemir M, Danos A, Gumus S, Hizal G, Monkman AP and Turksoy F (2021). Effects of asymmetric acceptor and donor positioning in deep blue pyridyl-sulfonyl based TADF emitters. Dyes and Pigments, Elsevier vol. 194 01-10-2021
Aksoy E, Danos A, Li C, Monkman AP and Varlikli C (2021). Silylethynyl Substitution for Preventing Aggregate Formation in Perylene Diimides. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 125 (23), 13041-13049. 02-06-2021
Cardeynaels T, Paredis S, Danos A, Harrison A, Deckers J, Brebels S, Lutsen L, Vanderzande D, Monkman AP, Champagne B and Maes W (2021). Difluorodithieno[3,2-a:2′,3′-c]phenazine as a strong acceptor for materials displaying thermally activated delayed fluorescence or room temperature phosphorescence. Dyes and Pigments, Elsevier vol. 190 01-06-2021
Hempe M, Kukhta NA, Danos A, Fox MA, Batsanov AS, Monkman AP and Bryce MR (2021). Vibrational Damping Reveals Vibronic Coupling in Thermally Activated Delayed Fluorescence Materials. Chemistry of Materials, American Chemical Society (ACS) vol. 33 (9), 3066-3080. 28-04-2021
Wright IA, Danos A, Montanaro S, Batsanov AS, Monkman AP and Bryce MR (2021). Conformational Dependence of Triplet Energies in Rotationally Hindered N‐ and S‐Heterocyclic Dimers: New Design and Measurement Rules for High Triplet Energy OLED Host Materials. Chemistry - A European Journal, Wiley vol. 27 (21), 6545-6556. 10-03-2021
Stavrou K, Danos A, Hama T, Hatakeyama T and 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 & Interfaces, American Chemical Society (ACS) vol. 13 (7), 8643-8655. 08-02-2021
Franca LG, Long Y, Li C, Danos A and Monkman A (2021). The Critical Role of nπ* States in the Photophysics and Thermally Activated Delayed Fluorescence of Spiro Acridine-Anthracenone. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 12 (5), 1490-1500. 03-02-2021
Cardeynaels T, Paredis S, Danos A, Vanderzande D, Monkman AP, Champagne B and Maes W (2021). Benzo[1,2-b:4,5-b']dithiophene as a weak donor component for push-pull materials displaying thermally activated delayed fluorescence or room temperature phosphorescence. Dyes and Pigments, Elsevier vol. 186 01-02-2021
Haase N, Danos A, Pflumm C, Stachelek P, Brütting W and Monkman AP (2021). Are the rates of dexter transfer in TADF hyperfluorescence systems optically accessible? Materials Horizons, Royal Society of Chemistry (RSC) vol. 8 (6), 1805-1815. 01-01-2021
Salah L, Etherington MK, Shuaib A, Danos A, Nazeer AA, Ghazal B, Prlj A, Turley AT, Mallick A, McGonigal PR, Curchod BFE, Monkman AP and Makhseed S (2021). Suppressing dimer formation by increasing conformational freedom in multi-carbazole thermally activated delayed fluorescence emitters. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 9 (1), 189-198. 01-01-2021
2020
Aksoy E, Danos A, Varlikli C and Monkman AP (2020). Navigating CIE Space for Efficient TADF Downconversion WOLEDs. Dyes and Pigments, Elsevier vol. 183 01-12-2020
Long Y, Mamada M, Li C, dos Santos PL, Colella M, Danos A, Adachi C and Monkman A (2020). Excited State Dynamics of Thermally Activated Delayed Fluorescence from an Excited State Intramolecular Proton Transfer System. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 11 (9), 3305-3312. 07-04-2020
Turley AT, Danos A, Prlj A, Monkman AP, Curchod BFE, McGonigal PR and Etherington MK (2020). Modulation of charge transfer by N -alkylation to control photoluminescence energy and quantum yield. Chemical Science, Royal Society of Chemistry (RSC) vol. 11 (27), 6990-6995. 01-01-2020
Ward JS, Danos A, Stachelek P, Fox MA, Batsanov AS, Monkman AP and Bryce MR (2020). Exploiting trifluoromethyl substituents for tuning orbital character of singlet and triplet states to increase the rate of thermally activated delayed fluorescence. Materials Chemistry Frontiers, Royal Society of Chemistry (RSC) vol. 4 (12), 3602-3615. 01-01-2020
2019
Stachelek P, Ward JS, dos Santos PL, Danos A, Colella M, Haase N, Raynes SJ, Batsanov AS, Bryce MR and Monkman AP (2019). Molecular Design Strategies for Color Tuning of Blue TADF Emitters. ACS Applied Materials & Interfaces, American Chemical Society (ACS) vol. 11 (30), 27125-27133. 17-07-2019
Colella M, Danos A and Monkman AP (2019). Identifying the Factors That Lead to PLQY Enhancement in Diluted TADF Exciplexes Based on Carbazole Donors. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 123 (28), 17318-17324. 25-06-2019
Pereira DDS, Menelaou C, Danos A, Marian C and Monkman AP (2019). Electroabsorption Spectroscopy as a Tool for Probing Charge Transfer and State Mixing in Thermally Activated Delayed Fluorescence Emitters. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 10 (12), 3205-3211. 22-05-2019
Etherington MK, Kukhta NA, Higginbotham HF, Danos A, Bismillah AN, Graves DR, McGonigal PR, Haase N, Morherr A, Batsanov AS, Pflumm C, Bhalla V, Bryce MR and Monkman AP (2019). Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 123 (17), 11109-11117. 03-04-2019
Colella M, Danos A and Monkman AP (2019). Less Is More: Dilution Enhances Optical and Electrical Performance of a TADF Exciplex. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 10 (4), 793-798. 06-02-2019
Huang R, Kukhta NA, Ward JS, Danos A, Batsanov AS, Bryce MR and Dias FB (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, Royal Society of Chemistry (RSC) vol. 7 (42), 13224-13234. 01-01-2019
Kukhta NA, Higginbotham HF, Matulaitis T, Danos A, Bismillah AN, Haase N, Etherington MK, Yufit DS, McGonigal PR, Gražulevičius JV and Monkman AP (2019). Revealing resonance effects and intramolecular dipole interactions in the positional isomers of benzonitrile-core thermally activated delayed fluorescence materials. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 7 (30), 9184-9194. 01-01-2019
2018
Haase N, Danos A, Pflumm C, Morherr A, Stachelek P, Mekic A, Brütting W and Monkman AP (2018). Kinetic Modeling of Transient Photoluminescence from Thermally Activated Delayed Fluorescence. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 122 (51), 29173-29179. 03-12-2018
2017
Guse JA, Jones TW, Danos A and McCamey DR (2017). Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity. Journal of Visualized Experiments, MyJove (121) 06-03-2017
2016
Davis NJLK, MacQueen RW, Roberts DA, Danos A, Dehn S, Perrier S and Schmidt TW (2016). Energy transfer in pendant perylene diimide copolymers. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 4 (35), 8270-8275. 01-01-2016
2015
Danos A, MacQueen RW, Cheng YY, Dvořák M, Darwish TA, McCamey DR and Schmidt TW (2015). Deuteration of Perylene Enhances Photochemical Upconversion Efficiency. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 6 (15), 3061-3066. 22-07-2015
2014
MacQueen RW, Cheng YY, Danos AN, Lips K and Schmidt TW (2014). Action spectrum experiment for the measurement of incoherent photon upconversion efficiency under sun-like excitation. RSC Advances, Royal Society of Chemistry (RSC) vol. 4 (95), 52749-52756. 01-01-2014
2013
Keevers TL, Danos A, Schmidt TW and McCamey DR (2013). An agnostic approach. Nature Nanotechnology, Springer Nature vol. 8 (12), 886-887. 01-12-2013
2012
Schulze TF, Cheng YY, Fückel B, MacQueen RW, Danos A, Davis NJLK, Tayebjee MJY, Khoury T, Clady RGCR, Ekins-Daukes NJ, Crossley MJ, Stannowski B, Lips K and Schmidt TW (2012). Photochemical Upconversion Enhanced Solar Cells: Effect of a Back Reflector. Australian Journal of Chemistry, CSIRO Publishing vol. 65 (5), 480-485. 01-01-2012
2009
Derekas A, Kiss LL, Bedding TR, Ashley MCB, Csák B, Danos A, Fernandez JM, Fűrész G, Mészáros S, Szabó GM, Szakáts R, Székely P and Szatmáry K (2009). Binarity and multiperiodicity in high‐amplitude δ Scuti stars. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP) vol. 394 (2), 995-1008. 18-02-2009