Andrew Monkman

Professor Andy Monkman, BSc., PhD., C.Phys, FInstP

ORCHID ID        orcid.org/0000-0002-0784-8640     
Research ID        B-1521-2013       

Researcher ID profilePersonal web page
Professor in the Department of Physics
Telephone: +44 (0) 191 33 43616
Room number: 141
Member of the Durham X-ray Centre

(email at a.p.monkman@durham.ac.uk)

Biography

Professor Andy Monkman obtained his PhD (London) in 1987 and has run the OEM research group at the University of Durham since then, focussing on the study of the optical properties of organic semiconductors, and OLED devices. The research group has a sophisticated array of spectroscopic techniques ranging from 15 fsec time resolved laser measurements to the ability to study the weakest phosphorescent processes. Many dedicated spectroscopic techniques have been developed for the study of triplet exciton dynamics, triplet annihilation processes and thermally activated delayed fluorescence, in organic materials. We are currently focused on understanding the mechanism that drive TADF.

Responsibilities within department

Director of the University of Durham Photonic Materials Centre. Head of the Organic Electroactive Materials research group.

Research interests

Organic light emitting displays, ultrafast laser spectroscopy materials characterisation, optical spectroscopy, development of new spectroscopic techniques.

Research Groups

Department of Physics

Indicators of Esteem

  • 2016 : Royal Society International Exchange Committee (2017-2010)
  • 2014  : International Advisory Committee for the Department of Chemistry, University of Coimbra, Portugal
  • 2013: : Conference Chairman and organiser of the 2013 International Conference on Optical Probes for Conjugated System to be hosted in Durham.
  • 2012: : UK-Japan International University-to-Business Symposium, British Embassy Tokyo. Presented case study on joint academic-industry research projects.
  • 2012: : EU Project Assessor; projects CELLO, OLED100, SCOOP and Flex-OLED
  • 2012 : CS3: UK team member Chemical Sciences and Society Summit (CS3) San Francisco, California, United States
  • 2011: : Chaired British Council DelPHE-Iraq Exploratory meeting held in Istanbul. A report was submitted to Basra University on a feasible structure for a Nanophotonics Centre.
  • 2011: : UK Korean Embassy Plastic Electronics Event (speaker); companies in attendance included Samsung SDi and Display, LG and various research organisations.
  • 2011: : Member of the UK Plastic Mission led by British Embassy Tokyo, talks given at Sumitomo, Panasonic, Toshiba, British Embassy event, Lumiotec, Yamagata University, AIST, NEDO.
  • 2010 : The Engineer Technology and Innovation Awards 2010, best Environmental Technology, for Project TOPLESS
  • 2010 : Academy of Finland: Chairman Photonics Panel, Academy of Finland Natural Sciences and Engineering Research Committee.
  • 2006: Invited Speaker at the UK-Korea Science, Technology Innovation Partnership Forum, Jeju Island, Korea.
  • 2006: DTI: 2006 Lead Academic on a new £2.7M DTI sponsored Technology program on organic solid stae lighting with Thorn Lighting and Sumation.
  • 2006: Trade and Industry: UKTI and DTI Inward Investment Team member to the Far East on Flat Panel Displays
  • 2005: AAAS: Organiser of the UK Organic Electronics Workshop, AAAS Meeting St Louis 2006 for the Foreign and Commonwealth Office
  • 2004: EPSRC: Chairman of the EPSRC Photonics Committee
  • 2004: Photonic Materials Institute: Director of the Durham University Photonic Materials Institute
  • 2003: IoP: Fellow of the Institute of Physics
  • 2002: Fellow: Leverhulme Fellow

Publications

Journal Article

 

2017

Etherington, Marc K; Franchello, Flavio ; Gibson, Jamie ; Northey, Thomas ; Santos, Jose ; Ward, Jonathan S; Higginbotham, Heather F; Data, Przemyslaw ; Kurowska, Aleksandra ; {Dos Santos}, Paloma L; Graves, David R; Batsanov, Andrei S; Dias, Fernando B; Bryce, Martin R; Penfold, Thomas J; Monkman, Andrew P

Regio- and conformational isomerization critical to design of efficient thermally-activated delayed fluorescence emitters Journal Article

Nature Communications, 8 , pp. 14987, 2017, ISSN: 2041-1723.

Links | BibTeX

2016

Dias, Fernando B; Santos, Jose ; Graves, David R; Data, Przemyslaw ; Nobuyasu, Roberto S; Fox, Mark A; Batsanov, Andrei S; Palmeira, Tiago ; Berberan-Santos, M{á}rio N; Bryce, Martin R; Monkman, Andrew P

The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices Journal Article

Advanced Science, 3 (12), pp. 1600080, 2016, ISSN: 21983844.

Links | BibTeX

Etherington, Marc K; Gibson, Jamie ; Higginbotham, Heather F; Penfold, Thomas J; Monkman, Andrew P

Revealing the spin–vibronic coupling mechanism of thermally activated delayed fluorescence Journal Article

Nature Communications, 7 , pp. 13680, 2016, ISSN: 2041-1723.

Abstract | Links | BibTeX

Etherington, Marc K; Gibson, Jamie ; Higginbotham, Heather F; Penfold, Thomas J; Monkman, Andrew P

Revealing the spin–vibronic coupling mechanism of thermally activated delayed fluorescence Journal Article

Nature Communications, 7 , pp. 13680, 2016, ISSN: 2041-1723.

Abstract | Links | BibTeX

dos Santos, Paloma L; Ward, Jonathan S; Bryce, Martin R; Monkman, Andrew P

Using Guest-Host Interactions to Optimize the Efficiency of TADF OLEDs Journal Article

Journal of Physical Chemistry Letters, 7 (17), pp. 3341–3346, 2016, ISSN: 19487185.

Abstract | Links | BibTeX

dos Santos, Paloma L; Ward, Jonathan S; Bryce, Martin R; Monkman, Andrew P

Using Guest–Host Interactions To Optimize the Efficiency of TADF OLEDs Journal Article

The Journal of Physical Chemistry Letters, 7 (17), pp. 3341–3346, 2016, ISSN: 1948-7185.

Links | BibTeX

Al-Attar, Hameed ; Monkman, Andrew P

Electric Field Induce Blue Shift and Intensity Enhancement in 2D Exciplex Organic Light Emitting Diodes; Controlling Electron-Hole Separation Journal Article

Advanced Materials, 28 (36), pp. 8014–8020, 2016, ISSN: 09359648.

Links | BibTeX

dos Santos, Paloma L; Ward, Jonathan S; Bryce, Martin R; Monkman, Andrew P

Using Guest–Host Interactions To Optimize the Efficiency of TADF OLEDs Journal Article

Journal of Physical Chemistry Letters, 7 (17), pp. 3341–3346, 2016, ISSN: 19487185.

Abstract | Links | BibTeX

Gibson, Jamie ; Monkman, Andrew P; Penfold, Thomas J

The Importance of Vibronic Coupling for Efficient Reverse Intersystem Crossing in Thermally Activated Delayed Fluorescence Molecules Journal Article

ChemPhysChem, 17 (19), pp. 2956–2961, 2016, ISSN: 14394235.

Links | BibTeX

Data, Przemyslaw ; Pander, Piotr ; Okazaki, Masato ; Takeda, Youhei ; Minakata, Satoshi ; Monkman, Andrew P

Dibenzo[ a,j ]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters Journal Article

Angewandte Chemie, 128 (19), pp. 5833–5838, 2016, ISSN: 00448249.

Links | BibTeX

Nobuyasu, Roberto S; Ren, Zhongjie ; Griffiths, Gareth C; Batsanov, Andrei S; Data, Przemyslaw ; Yan, Shouke ; Monkman, Andrew P; Bryce, Martin R; Dias, Fernando B

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 Journal Article

Advanced Optical Materials, 4 (4), pp. 597–607, 2016, ISSN: 21951071.

Links | BibTeX

dos Santos, Paloma L; Ward, Jonathan S; Data, Przemyslaw ; Batsanov, Andrei S; Bryce, Martin R; Dias, Fernando B; Monkman, Andrew P

Engineering the singlet–triplet energy splitting in a TADF molecule Journal Article

J. Mater. Chem. C, 4 (17), pp. 3815–3824, 2016, ISSN: 2050-7526.

Links | BibTeX

dos Santos, Paloma L; Ward, Jonathan S; Data, Przemyslaw ; Batsanov, Andrei S; Bryce, Martin R; Dias, Fernando B; Monkman, Andrew P

Engineering the singlet-triplet energy splitting in a TADF molecule Journal Article

J. Mater. Chem. C, 4 (ii), pp. 3815–3824, 2016, ISSN: 2050-7526.

Abstract | Links | BibTeX

dos Santos, Paloma L; Ward, Jonathan S; Data, Przemyslaw ; Batsanov, Andrei S; Bryce, Martin R; Dias, Fernando B; Monkman, Andrew P

Engineering the singlet–triplet energy splitting in a TADF molecule Journal Article

J. Mater. Chem. C, 4 (17), pp. 3815–3824, 2016, ISSN: 2050-7526.

Abstract | Links | BibTeX

Ward, Jonathan S; Nobuyasu, Roberto S; Batsanov, Andrei S; Data, Przemyslaw ; Monkman, Andrew P; Dias, Fernando B; Bryce, Martin R

The interplay of thermally activated delayed fluorescence (TADF) and room temperature organic phosphorescence in sterically-constrained donor–acceptor charge-transfer molecules Journal Article

Chem. Commun., 52 (12), pp. 2612–2615, 2016, ISSN: 1359-7345.

Links | BibTeX

Ward, Jonathan S; Nobuyasu, Roberto S; Batsanov, Andrei S; Data, Przemyslaw ; Monkman, Andrew P; Dias, Fernando B; Bryce, Martin R

The interplay of thermally activated delayed fluorescence (TADF) and room temperature organic phosphorescence in sterically-constrained donor–acceptor charge-transfer molecules Journal Article

Chem. Commun., 52 , pp. 3–6, 2016, ISSN: 1359-7345.

Links | BibTeX

Ward, Jonathan S; Nobuyasu, Roberto S; Batsanov, Andrei S; Data, Przemyslaw ; Monkman, Andrew P; Dias, Fernando B; Bryce, Martin R

The interplay of thermally activated delayed fluorescence (TADF) and room temperature organic phosphorescence in sterically-constrained donor–acceptor charge-transfer molecules Journal Article

Chem. Commun., 52 (12), pp. 3–6, 2016, ISSN: 1359-7345.

Abstract | Links | BibTeX

Ward, Jonathan S; Nobuyasu, Roberto S; Batsanov, Andrei S; Data, Przemyslaw ; Monkman, Andrew P; Dias, Fernando B; Bryce, Martin R

The interplay of thermally activated delayed fluorescence (TADF) and room temperature organic phosphorescence in sterically-constrained donor–acceptor charge-transfer molecules Journal Article

Chem. Commun., 52 , pp. 3–6, 2016, ISSN: 1359-7345.

Abstract | Links | BibTeX

2015

Aydemir, Murat ; Haykir, Gulcin ; Turksoy, Figen ; Gumus, Selcuk ; Dias, Fernando B; Monkman, Andrew P

Synthesis and investigation of intra-molecular charge transfer state properties of novel donor-acceptor-donor pyridine derivatives: The effects of temperature and environment upon molecular configurations and the origin of delayed fuluorescence Journal Article

Phys. Chem. Chem. Phys., 2015, ISSN: 1463-9076.

Links | BibTeX

Aydemir, Murat ; Jankus, Vygintas ; Dias, Fernando B; Monkman, Andrew P

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 Article

The Journal of Physical Chemistry C, pp. 150311134718000, 2015, ISSN: 1932-7447.

Links | BibTeX

Data, Przemyslaw ; Motyka, Radoslaw ; Lapkowski, Mieczyslaw ; Suwinski, Jerzy ; Monkman, Andrew P

Spectroelectrochemical Analysis of Charge Carriers as a Way of Improving Poly(p-phenylene)-Based Electrochromic Windows Journal Article

Journal of Physical Chemistry C, 119 (34), pp. 20188–20200, 2015, ISSN: 19327455.

Links | BibTeX

2014

Jankus, Vygintas ; Data, Przemyslaw ; Graves, David R; McGuinness, C; Santos, Jose ; Bryce, Martin R; Dias, Fernando B; Monkman, Andrew P

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 Journal Article

Advanced Functional Materials, 24 (39), pp. 6178–6186, 2014, ISSN: 1616301X.

Links | BibTeX

Graves, David R; Jankus, Vygintas ; Dias, Fernando B; Monkman, Andrew P

Photophysical Investigation of the Thermally Activated Delayed Emission from Films of m-MTDATA:PBD Exciplex Journal Article

Advanced Functional Materials, 24 (16), pp. 2343–2351, 2014, ISSN: 1616301X.

Links | BibTeX

2013

Chiang, Chien-Jung ; Kimyonok, Alpay ; Etherington, Marc K; Griffiths, Gareth C; Jankus, Vygintas ; Turksoy, Figen ; Monkman, Andrew P

Ultrahigh Efficiency Fluorescent Single and Bi-Layer Organic Light Emitting Diodes: The Key Role of Triplet Fusion Journal Article

Advanced Functional Materials, 23 (6), pp. 739–746, 2013, ISSN: 1616301X.

Links | BibTeX

Dias, Fernando B; Bourdakos, Konstantinos N; Jankus, Vygintas ; Moss, Kathryn C; Kamtekar, Kiran T; Bhalla, Vandana ; Santos, Jose ; Bryce, Martin R; Monkman, Andrew P

Triplet harvesting with 100% efficiency by way of thermally activated delayed fluorescence in charge transfer OLED emitters. Journal Article

Advanced materials (Deerfield Beach, Fla.), 25 (27), pp. 3707–14, 2013, ISSN: 1521-4095.

Abstract | Links | BibTeX

Dias, Fernando B; Bourdakos, Konstantinos N; Jankus, Vygintas ; Moss, Kathryn C; Kamtekar, Kiran T; Bhalla, Vandana ; Santos, Jose ; Bryce, Martin R; Monkman, Andrew P

Triplet harvesting with 100% efficiency by way of thermally activated delayed fluorescence in charge transfer OLED emitters. Journal Article

Advanced materials (Deerfield Beach, Fla.), 25 (27), pp. 3707–14, 2013, ISSN: 1521-4095.

Abstract | Links | BibTeX

2011

Kamtekar, Kiran T; Dahms, Katja ; Batsanov, Andrei S; Jankus, Vygintas ; Vaughan, Helen L; Monkman, Andrew P; Bryce, Martin R

Synthesis and characterization of fluorene-based oligomers and polymers incorporating N-arylphenothiazine-S,S-dioxide units Journal Article

Journal of Polymer Science Part A: Polymer Chemistry, 49 (5), pp. 1129–1137, 2011, ISSN: 0887624X.

Links | BibTeX

King, Simon M; Cass, M; Pintani, M; Coward, Christopher ; Dias, Fernando B; Monkman, Andrew P; Roberts, M

The contribution of triplet–triplet annihilation to the lifetime and efficiency of fluorescent polymer organic light emitting diodes Journal Article

Journal of Applied Physics, 109 (7), pp. 074502, 2011, ISSN: 00218979.

Links | BibTeX

King, Simon M; Cass, M; Pintani, M; Coward, Christopher ; Dias, Fernando B; Monkman, Andrew P; Roberts, M

The contribution of triplet–triplet annihilation to the lifetime and efficiency of fluorescent polymer organic light emitting diodes Journal Article

Journal of Applied Physics, 109 (7), pp. 074502, 2011, ISSN: 00218979.

Links | BibTeX

King, Simon M; Cass, M; Pintani, M; Coward, Christopher ; Dias, Fernando B; Monkman, Andrew P; Roberts, M

The contribution of triplet–triplet annihilation to the lifetime and efficiency of fluorescent polymer organic light emitting diodes Journal Article

Journal of Applied Physics, 109 (7), pp. 074502, 2011, ISSN: 00218979.

Links | BibTeX

2009

Monkman, Andrew P; Rothe, Carsten ; King, Simon M

Singlet Generation Yields in Organic Light-Emitting Diodes Journal Article

Proceedings of the IEEE, 97 (9), pp. 1597–1605, 2009, ISSN: 0018-9219.

Links | BibTeX

2007

King, Simon M; Dai, D; Rothe, Carsten ; Monkman, Andrew P

Exciton annihilation in a polyfluorene: Low threshold for singlet-singlet annihilation and the absence of singlet-triplet annihilation Journal Article

Physical Review B, 76 (8), pp. 085204, 2007, ISSN: 1098-0121.

Abstract | Links | BibTeX

2006

Rothe, Carsten ; King, Simon M; Monkman, Andrew P

Direct Measurement of the Singlet Generation Yield in Polymer Light-Emitting Diodes Journal Article

Physical Review Letters, 97 (7), pp. 1–4, 2006, ISSN: 0031-9007.

Links | BibTeX

King, Simon M; Rothe, Carsten ; Dai, D; Monkman, Andrew P

Femtosecond ground state recovery: Measuring the intersystem crossing yield of polyspirobifluorene Journal Article

Journal of Chemical Physics, 124 (23), 2006, ISSN: 00219606.

Abstract | Links | BibTeX

Dias, Fernando B; Pollock, Sam ; Hedley, Gordon ; P{aa}lsson, Lars-Olof ; Monkman, Andrew P; Perepichka, Irene I; Perepichka, Igor F; Tavasli, Mustafa ; Bryce, Martin R

Intramolecular charge transfer assisted by conformational changes in the excited state of fluorene-dibenzothiophene-S,S-dioxide co-oligomers. Journal Article

The journal of physical chemistry. B, 110 (39), pp. 19329–39, 2006, ISSN: 1520-6106.

Abstract | Links | BibTeX

2005

Rothe, Carsten ; Al-Attar, Hameed ; Monkman, Andrew P

Absolute measurements of the triplet-triplet annihilation rate and the charge-carrier recombination layer thickness in working polymer light-emitting diodes based on polyspirobifluorene Journal Article

Physical Review B, 72 (15), pp. 1–9, 2005, ISSN: 1098-0121.

Links | BibTeX

Rothe, Carsten ; King, Simon M; Monkman, Andrew P

Electric-field-induced singlet and triplet exciton quenching in films of the conjugated polymer polyspirobifluorene Journal Article

Physical Review B, 72 (8), pp. 1–7, 2005, ISSN: 1098-0121.

Links | BibTeX

Rothe, Carsten ; King, Simon M; Monkman, Andrew P

Electric-field-induced singlet and triplet exciton quenching in films of the conjugated polymer polyspirobifluorene Journal Article

Physical Review B, 72 (8), pp. 085220, 2005, ISSN: 1098-0121.

Links | BibTeX

Rothe, Carsten ; King, Simon M; Monkman, Andrew P

Electric-field-induced singlet and triplet exciton quenching in films of the conjugated polymer polyspirobifluorene Journal Article

Physical Review B, 72 (8), pp. 1–7, 2005, ISSN: 1098-0121.

Links | BibTeX

2004

King, Simon M; Rothe, Carsten ; Monkman, Andrew P

Triplet build in and decay of isolated polyspirobifluorene chains in dilute solution. Journal Article

The Journal of chemical physics, 121 (21), pp. 10803–8, 2004, ISSN: 0021-9606.

Abstract | Links | BibTeX

King, Simon M; Rothe, Carsten ; Monkman, Andrew P

Triplet build in and decay of isolated polyspirobifluorene chains in dilute solution. Journal Article

The Journal of chemical physics, 121 (21), pp. 10803–8, 2004, ISSN: 0021-9606.

Abstract | Links | BibTeX

Rothe, Carsten ; King, Simon M; Dias, Fernando B; Monkman, Andrew P

Triplet exciton state and related phenomena in the $beta$-phase of poly(9,9-dioctyl)fluorene Journal Article

Physical Review B, 70 (19), pp. 195213, 2004, ISSN: 1098-0121.

Abstract | Links | BibTeX

King, Simon M; Rothe, Carsten ; Monkman, Andrew P

Triplet build in and decay of isolated polyspirobifluorene chains in dilute solution Journal Article

Journal of Chemical Physics, 121 (21), pp. 10803–10808, 2004, ISSN: 00219606.

Abstract | Links | BibTeX

2003

Rothe, Carsten ; Monkman, Andrew P

Triplet exciton migration in a conjugated polyfluorene Journal Article

Physical Review B, 68 (7), pp. 075208, 2003, ISSN: 0163-1829.

Links | BibTeX

Sinha, S; Rothe, Carsten ; G{ü}ntner, R; Scherf, U; Monkman, Andrew P

Electrophosphorescence and Delayed Electroluminescence from Pristine Polyfluorene Thin-Film Devices at Low Temperature Journal Article

Physical Review Letters, 90 (12), pp. 28–31, 2003, ISSN: 0031-9007.

Links | BibTeX

Sinha, S; Monkman, Andrew P; Güntner, R; Scherf, U

Space-charge-mediated delayed electroluminescence from polyfluorene thin films Journal Article

Applied Physics Letters, 82 (26), pp. 4693, 2003, ISSN: 00036951.

Links | BibTeX

2002

P{aa}lsson, L O; Monkman, Andrew P

Measurements of Solid-State Photoluminescence Quantum Yields of Films Using a Fluorimeter Journal Article

Advanced Materials, 14 (10), pp. 757, 2002, ISSN: 09359648.

Links | BibTeX

2001

Monkman, Andrew P; Burrows, H; Hartwell, L; Horsburgh, L; Hamblett, I; Navaratnam, S

Triplet Energies of $pi$-Conjugated Polymers Journal Article

Physical Review Letters, 86 (7), pp. 1358–1361, 2001, ISSN: 0031-9007.

Links | BibTeX

Rothe, Carsten ; Guentner, R; Scherf, U; Monkman, Andrew P

Trap influenced properties of the delayed luminescence in thin solid films of the conjugated polymer Poly (9,9-di(ethylhexyl)fluorene) Journal Article

The Journal of Chemical Physics, 115 (20), pp. 9557, 2001, ISSN: 00219606.

Links | BibTeX

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