Publications

2017

55

Synthesis and Exciton Dynamics of Donor-Orthogonal Acceptor Conjugated Polymers: Reducing the Singlet-Triplet Energy Gap

David M. E. Freeman, Andrew J. Musser* , Jarvist M. Frost, Hannah L. Stern, Alexander K. Forster, Kealan J. Fallon, Alexandros G. Rapidis, Franco Cacialli, Iain McCulloch, Tracey M. Clarke, Richard H. Friend*, Hugo Bronstein*
Journal of the American Chemical Society 2017asap, DOI: 10.1021/jacs.7b03327


54

Tunable Semiconducting Polymer Nanoparticles with INDT-Based Conjugated Polymers for Photoacoustic Molecular Imaging

Thomas Stahl, Robin Bofinger, Ivan Lam, Kealan J. Fallon, Peter Johnson, Olumide Ogunlade, Vessela Vassileva, R. Barbara Pedley, Paul C. Beard, Helen C. Hailes, Hugo Bronstein*, Alethea B. Tabor*
Bioconjugate Chemistry 201728(6)pp 1734–1740, DOI: 10.1021/acs.bioconjchem.7b00185


53

Enhanced sub-bandgap efficiency of a solid-state organic intermediate band solar cell using triplet–triplet annihilation

YunHui L. Lin, Marius Koch, Alyssa N. Brigeman, David M. E. Freeman, Lianfeng Zhao, Hugo Bronstein, Noel C. Giebink, Gregory D. Scholes, Barry P. Rand*
Energy & Environmental Science 2017(10)pp 1465-1475 , DOI: 10.1039/C6EE03702J


52

Bithiazole: An Intriguing Electron‐Deficient Building for Plastic Electronic Applications

Haw‐Lih Su, Dusan N Sredojevic, Hugo Bronstein, Tobin J Marks, Bob C Schroeder, Mohammed Al‐Hashimi
Macromolecular Rapid Communications 2017, DOI: 10.1002/marc.201600610

2016

51

Indolo-naphthyridine-6, 13-dione Thiophene Building Block for Conjugated Polymer Electronics: Molecular Origin of Ultrahigh n-Type Mobility

Kealan J Fallon, Nilushi Wijeyasinghe, Eric F Manley, Stoichko D Dimitrov, Syeda A Yousaf, Raja S Ashraf, Warren Duffy, Anne AY Guilbert, David ME Freeman, Mohammed Al-Hashimi, Jenny Nelson, James R Durrant, Lin X Chen, Iain McCulloch, Tobin J Marks, Tracey M Clarke, Thomas D Anthopoulos, Hugo Bronstein
Chemistry of Materials 201628(22)pp 8366-8378, DOI: 10.1021/acs.chemmater.6b03671


50

Exploring the origin of high optical absorption in conjugated polymers

Michelle S Vezie, Sheridan Few, Iain Meager, Galatia Pieridou, Bernhard Dörling, Raja Shahid Ashraf, Alejandro R Goñi, Hugo Bronstein, Iain McCulloch, Sophia C Hayes, Mariano Campoy-Quiles, Jenny Nelson
Nature materials 2016, DOI: 10.1038/nmat4645


49

Hybrid Organic–Inorganic Coordination Complexes as Tunable Optical Response Materials

Will Travis, Caroline E Knapp, Christopher N Savory, Alex M Ganose, Panagiota Kafourou, Xingchi Song, Zainab Sharif, Jeremy K Cockcroft, David O Scanlon, Hugo Bronstein, Robert G Palgrave
Inorganic chemistry 201655(7)pp 3393-3400, DOI: 10.1021/acs.inorgchem.5b02749


48

Spatial Electron-hole Separation in a One Dimensional Hybrid Organic–Inorganic Lead Iodide

Christopher N Savory, Robert G Palgrave, Hugo Bronstein, David O Scanlon
Scientific reports 20166pp 20626, DOI: 10.1038/srep20626


47

Singlet exciton lifetimes in conjugated polymer films for organic solar cells

Stoichko D Dimitrov, Bob C Schroeder, Christian B Nielsen, Hugo Bronstein, Zhuping Fei, Iain McCulloch, Martin Heeney, James R Durrant
Polymers 20168(1)pp 14, DOI: 10.3390/polym8010014


46

Energetic tuning in spirocyclic conjugated polymers

H. Bronstein, F. D. King
Polymers 20168(1)pp 9, DOI: 10.3390/polym8010009


45

Probing the chemical structure of monolayer covalent-organic frameworks grown via Schiff-base condensation reactions

Ya Hu, Niall Goodeal, Ying Chen, Alex M Ganose, Robert G Palgrave, Hugo Bronstein, Matthew O Blunt
Chemical Communications 201652(64)pp 9941-9944, DOI: 10.1039/C6CC03895F


44

On the application of the tolerance factor to inorganic and hybrid halide perovskites: a revised system

W. Travis, E. N. K. Glover, H. Bronstein, D. O. Scanlon, R. G. Palgrave
Chem. Sci. 20167pp 4548-4556, DOI: 10.1039/C5SC04845A


43

Highly red-shifted NIR emission from a novel anthracene conjugated polymer backbone containing Pt(II) porphyrins

D. M. E. Freeman, A. Minotto, W. Duffy, K. J. Fallon, I. McCulloch, F. Cacialli and H. Bronstein
Polym. Chem. 20167pp 722-730

2015

42

Synthesis and Exciton Dynamics of Triplet Sensitized Conjugated Polymers

Rolf Andernach, Hendrik Utzat, Stoichko D. Dimitrov, Iain McCulloch, Martin Heeney, James R. Durrant, and Hugo Bronstein
J. Am. Chem. Soc. 2015137(32)pp 10383-10390, DOI: 10.1021/jacs.5b06223


41

Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells

Derya Baran, Michelle S. Vezie, Nicola Gasparini, Florent Deledalle, Jizhong Yao, Bob C. Schroeder, Hugo Bronstein, Tayebeh Ameri, Thomas Kirchartz, Iain McCulloch, Jenny Nelson, Christoph J. Brabec
J. Phys. Chem. C 2015article asap, DOI: 10.1021/acs.jpcc.5b05709


40

Operational electrochemical stability of thiophene-thiazole copolymers probed by resonant Raman spectroscopy

Jessica Wade, Sebastian Wood, Daniel Beatrup, Michael Hurhangee, Hugo Bronstein, Iain McCulloch, James R. Durrant, Ji-Seon Kim
J. Chem. Phys. 2015142pp 244904, DOI: 10.1063/1.4923197


39

Conjugated Polymer–Porphyrin Complexes for Organic Electronics

Rolf E. Andernach, Stephan Rossbauer, Dr. Raja S. Ashraf, Hendrik Faber, Prof. Thomas D. Anthopoulos, Prof. Iain McCulloch, Prof. Martin Heeney, Dr. Hugo A. Bronstein
ChemPhysChem Special Issue: Organic Electronics 201516(6)pp 1223-1231, DOI: 10.1002/cphc.201402759


38

A Nature-Inspired Conjugated Polymer for High Performance Transistors and Solar Cells

Kealan J. Fallon, Nilushi Wijeyasinghe, Nir Yaacobi-Gross, Raja S. Ashraf, David M. E. Freeman, Robert G. Palgrave, Mohammed Al-Hashimi, Tobin J. Marks, Iain McCulloch, Thomas D. Anthopoulos, and Hugo Bronstein
Macromolecules 201548(15)pp 5148-5154, DOI: 10.1021/acs.macromol.5b00542


37

Deep-red electrophosphorescence from a platinum(II)–porphyrin complex copolymerised with polyfluorene for efficient energy transfer and triplet harvesting

David M.E. Freeman, Giulia Tregnago, Silvia Araguas Rodriguez, Kealan J. Fallon, Franco Cacialli & Hugo Bronstein
J. Org. Semiconductors 20153(1)pp 1-7, DOI: 10.1080/21606099.2015.1047473


36

Scalable route to CH3NH3PbI3 perovskite thin films by aerosol assisted chemical vapour deposition

DS Bhachu, DO Scanlon, EJ Saban, H Bronstein, IP Parkin, CJ Carmalt, RG Palgrave
Journal of Materials Chemistry A 20152015(3)pp 9071-9073, DOI: 10.1039/C4TA05522E

2014

35

Thieno [3, 2‐b] thiophene Flanked Isoindigo Polymers for High Performance Ambipolar OFET Applications

Iain Meager, Mark Nikolka, Bob C Schroeder, Christian B Nielsen, Miquel Planells, Hugo Bronstein, Joseph W Rumer, David Ian James, Raja Shahid Ashraf, Aditya Sadhanala, Pascal Hayoz, Jean‐Charles Flores, Henning Sirringhaus, Iain McCulloch
Advanced Functional Materials 201424(45)pp 7109-7115, DOI: 10.1002/adfm.201402307


34

Polaron stability in semiconducting polymer neat films

Daniel Beatrup, Jessica Wade, Laure Biniek, Hugo Bronstein, Michael Hurhangee, Ji-Seon Kim, Iain McCulloch, James R Durrant
Chem. Commun. 201450(92)pp 14425-14428, DOI: 10.1039/C4CC06193D


33

Bis-lactam-based donor polymers for organic solar cells: Evolution by design

Joseph W Rumer, Bob C Schroeder, Christian B Nielsen, Raja S Ashraf, Daniel Beatrup, Hugo Bronstein, Samuel J Cryer, Jenny E Donaghey, Sarah Holliday, Michael Hurhangee, David I James, Stefanie Lim, Iain Meager, Weimin Zhang, Iain McCulloch
Thin Solid Films 2014560pp 82-85, DOI: 10.1016/j.tsf.2013.10.089


32

Morphological Stability and Performance of Polymer–Fullerene Solar Cells under Thermal Stress: The Impact of Photoinduced PC60BM Oligomerization

H. C. Wong, Z. Li, C. H. Tan, H. Zhong, Z. Huang, H. Bronstein, I. McCulloch, J. T. Cabral, J. R. Durrant
ACS Nano 20148 (2)pp 1297–1308, DOI: 10.1021/nn404687s


31

Optimisation of diketopyrrolopyrrole: fullerene solar cell performance through control of polymer molecular weight and thermal annealing

Z. Huang, E. C. Fregoso, S. Dimitrov, P. S. Tuladhar, Y. W. Soon, H. Bronstein, I. Meager, W. Zhang, I. McCulloch, J. R. Durrant
J. Mater. Chem. A 20142pp 19282-19289, DOI: 10.1039/C4TA03589E


30

Power conversion efficiency enhancement in diketopyrrolopyrrole based solar cells through polymer fractionation

I. Meager, R. S. Ashraf, C. B. Nielsen, J. E. Donaghey, Z. Huang, H. Bronstein, J. R. Durrant, I. McCulloch
Journal of Materials Chemistry C 20142(40)pp 8593-8598, DOI: 10.1039/C4TC01594K


29

Polythiophenes with vinylene linked ortho, meta and para-carborane sidechains

J. Marshall, J. Hooton, Y. Han, A. Creamer, R. S. Ashraf, Y. Porte, T. D. Anthopoulos, P. N. Stavrinou, M. A. McLachlan, H. Bronstein, P. Beavis, M. Heeney
Polymer Chemistry 20145(21)pp 6190-6199, DOI: 10.1039/C4PY00767K

2013

28

Benzocarborano[2,1-b:3,4-b′]dithiophene Containing Conjugated Polymers: Synthesis, Characterization, and Optoelectronic Properties

J. Marshall, B. C. Schroeder, H. Bronstein, I. Meager, S. Rossbauer, N. Yaacobi-Gross, E. Buchaca-Domingo, T. D. Anthopoulos, N. Stingelin, P. Beavis, M. Heeney
Macromolecules 201347(1)pp 89-96, DOI: 10.1021/ma402273w


27

Material Crystallinity as a Determinant of Triplet Dynamics and Oxygen Quenching in Donor Polymers for Organic Photovoltaic Devices

Y. W. Soon, S. Shoaee, R. S. Ashraf, H. Bronstein, B. C. Schroeder, W. Zhang, Z. Fei, M. Heeney, I. McCulloch, J. R. Durrant*
Advanced Functional Materials 201324(10)pp 1474-1482, DOI: 10.1002/adfm.201302612


26

Iso-structural, deeper HOMO analogues of P3HT for high open circuit voltage organic solar cells

H. Bronstein*, M. Hurhangee, E. Collado-Fregoso, D. Beatrup, Y. W. Soon, Z. Huang, A. Hadipour, P. S. Tuladhar, S. Rossbauer, E.H. Sohn, S. Shoaee, S. D. Dimitrov, J. M. Frost, R. S. Ashraf, T. Kirchartz, S. E. Watkins, K. Song, T. D. Anthopoulos, J. Nelson, B. P. Rand, J. R. Durrant, I. McCulloch
Chemistry of Materials 201325(21)pp 4239-4249, DOI: 10.1021/cm4022563


25

Bis-lactam-based donor polymers for organic solar cells: Evolution by design

J. W. Rumer, B. C. Schroeder, C. B. Nielsen, R. S. Ashraf, D. Beatrup, H. Bronstein, S. J. Cryer, J. E. Donaghey, S. Holliday, M. Hurhangee, D. I. James, S. Lim, I. Meager, W. Zhang, I. McCulloch
Thin Solid Films 2013560pp 82-85, DOI: 10.1016/j.tsf.2013.10.089


24

Alkyl side-chain branching point effects in thieno [3, 4-c] pyrrole-4, 6-dione copolymers

J. W. Rumer*, C. K. L. Hora, I. Meager, C. P. Yau, Z. Huang, C. B. Nielsen, S. E. Watkins, H. Bronstein, I. McCulloch
Journal of Organic Semiconductors 20131(1)pp 30-35, DOI: 10.1080/21606099.2013.829393


23

Photocurrent Enhancement from Diketopyrrolopyrrole Polymer Solar Cells through Alkyl-Chain Branching Point Manipulation

I. Meager*, R. S. Ashraf, S. Mollinger, B. C. Schroeder, H. Bronstein, D. Beatrup, M. S. Vezie, T. Kirchartz, A. Salleo, J. Nelson, I. McCulloch
Journal of the American Chemical Society 2013135(31)pp 11537-11540, DOI: 10.1021/ja406934j


22

Alkyl chain extension as a route to novel thieno[3,2-b]thiophene flanked diketopyrrolopyrrole polymers for use in organic solar cells and field effect transistors

I. Meager*, R. S. Ashraf, S. Rossbauer, H. Bronstein, J. E. Donaghey, J. Marshall, B. C. Schroeder, M.Heeney, T. D. Anthopoulos, I. McCulloch
Macromolecules 201346(15)pp 5961-5967, DOI: 10.1021/ma401128s


21

Molecular Origin of High Field-Effect Mobility in an Indacenodithiophene-Benzothiadiazole Copolymer

X. Zhang#, H. Bronstein#, A. J. Kronemeijer, J. Smith, Y. Kim, J. R. Kline, L. J. Richter, T. D. Anthopoulos, H. Sirringhaus, K. Song, M. Heeney, W. Zhang, I. McCulloch*, D. M. DeLongchamp* #Authors contributed equally
Nature Communications 20134pp 2238, DOI: 10.1038/ncomms3238


20

Thieno[3,2-b]thiophene-diketopyrrolopyrrole containing polymers for inverted solar cells devices with high short circuit currents

H. Bronstein*, A. Hadipour, S. D. Dimitrov, E. Collado-Fregoso, B. P. Rand, S. E. Watkins, Z. Huang, P. S. Tuladhar, I. Meager, J. R. Durrant, I. McCulloch
Advanced Functional Materials 201323(45)pp 5647-5654, DOI: 10.1002/adfm.201300287


19

The Influence of polymer purification on photovoltaic device performance of a series of indacenodithiophene donor polymers

R. S. Ashraf*, B. C. Schroeder, H. Bronstein, Z. Huang, S. Thomas, J. R. Kline, C. J. Brabec, P. Rannou, T. D. Anthopoulos, J. R. Durrant, I. McCulloch
Advanced Materials 201325(14)pp 2029-2034, DOI: 10.1002/adma.201300027


18

Effect of fluorination on the properties of a donor-acceptor co-polymer for use in photovoltaic cells and transistors

H. Bronstein*, J. M. Frost, A. Hadipour, Y. Kim, C. Nielsen, R. S. Ashraf, B. P. Rand, S. E. Watkins, I. McCulloch
Chemistry of Materials 201325(3)pp 277-285, DOI: 10.1021/cm301910t


17

Correlating triplet yield, singlet oxygen generation and photochemical stability in polymer/fullerene blend films

Y. W. Soon, H. Cho, J. Low, H. Bronstein, I. McCulloch, J. R. Durrant*
Chemical Communications 201349pp 1291-1293, DOI: 10.1039/C2CC38243A

2012

16

On the Energetic Dependence of Charge Separation in Low-Band-Gap Polymer/Fullerene Blends

S. D. Dimitrov, A. A. Bakulin, C. B. Nielsen, B. C. Schroeder, J. Du, H. Bronstein, I. McCulloch, R. H. Friend, J. R. Durrant*
Journal of the American Chemical Society 2012134(44)pp 18189-18192, DOI: 10.1021/ja308177d


15

Design of Semiconducting Indacenodithiophene Polymers for High Performance Transistors and Solar Cells

I. McCulloch*, R. S. Ashraf, L. Biniek, H. Bronstein, C. Combe, J. E. Donaghey, D. I. James, C. B. Nielsen, B. C. Schroeder, W. Zhang
Accounts of Chemical Research 201245(5)pp  714-722, DOI: 10.1021/ar200208g


14

A Systematic Approach to the Design Optimization of Light-Absorbing Indenofluorene Polymers for Organic Photovoltaics

J. Kirkpatrick, C. B. Nielsen*, W. Zhang, H. Bronstein, R. S. Ashraf, M. Heeney, I. McCulloch
Advanced Energy Materials 20122(2)pp 260-265, DOI: 10.1002/aenm.201100622


13

Constructing Regioregular Star Poly(3-hexylthiophene) via Externally Initiated Kumada Catalyst-Transfer Polycondensation

M. Yuan, K. Okamoto, H. Bronstein, C. K. Luscombe*
ACS Macro Letters 20121(3)pp 392-395, DOI: 10.1021/mz3000368

2011

12

Synthesis of a novel fused thiophene-thieno[3,2-b]thiophene-thiophene donor monomer and co-polymer for use in OPV and OFETs

H. Bronstein*, R. S. Ashraf, Y. Kim, A. J.P. White, T. Anthopoulos, K. Song, D. James, W. Zhang, I. McCulloch
Macromolecular Rapid Communications 201132(20)pp 1664-1668, DOI: 10.1002/marc.201100417


11

Indacenodithiophene-co-Benzothiadiazole copolymers for high performance solar cells or transistors via alkyl chain optimization

H. Bronstein, D. S. Leem, R. Hamilton, P. Woebkenberg, S. King, W. Zhang, R. S. Ashraf, M. Heeney, T. D. Anthopoulos, J. de Mello, I. McCulloch*
Macromolecules 201144(17)pp 6649-6652, DOI: 10.1021/ma201158d


10

Thieno[3,2-b]thiophene-Diketopyrrolopyrrole-Containing Polymers for High-Performance Organic Field-Effect Transistors and Organic Photovoltaic Devices

H. Bronstein*, Z. Chen*, R. S. Ashraf, W. Zhang, J. Du, J. R. Durrant, P. S. Tuladhar, K. Song, S. E. Watkins, Y. Geerts, M. M. Wienk, R. A. J. Janssen, T. Anthopoulos, H. Sirringhaus, M. Heeney, I. McCulloch
Journal of the American Chemical Society 2011133(10)pp 3272-3275, DOI: 10.1021/ja110619k


9

Silaindacenodithiophene Semiconducting Polymers for Efficient Solar Cells and High-Mobility Ambipolar Transistors

R. S. Ashraf*, Z. Chen, D. S. Leem, H. Bronstein, W. Zhang, B. Schroeder, Y. Geerts, J. Smith, S. Watkins, T. D. Anthopoulos, H. Sirringhaus, J. C. de Mello, M. Heeney, I. McCulloch
Chemistry of Materials 201123(3)pp 768-770, DOI: 10.1021/cm1029744

2010

8

Pressure-Induced Delocalization of Photoexcited States in a Semiconducting Polymer

S. Albert-Seifried, J. M. Hodgkiss, F. Laquai, H. Bronstein, C. K. Williams, R. H. Friend*
Physical Review Letters 2010105(19)pp 195501, DOI: 10.1103/PhysRevLett.105.195501


7

Charge recombination and annihilation reactions in conjugated polymer blends

I. A. Howard, J. M. Hodgkiss, X. Zhang, K. R. Kirov, H. Bronstein, C. K. Williams, R. H. Friend, S. Westenhoff, N. C. Greenham*
Journal of the American Chemical Society 2010132(1)pp 328-335, DOI: 10.1021/ja908046h

2009

6

The effects of binding ligand variation on the nickel catalyzed externally initiated polymerization of 2-bromo-3-hexyl-5-iodothiophene

N. Doubina, M. Stoddard, H. Bronstein, A. K. Y. Jen, C. K. Luscombe*
Macromolecular Chemistry and Physics 2009210(22)pp 1966-1972, DOI: 10.1002/macp.200900375


5

Externally initiated regioregular P3HT with controlled molecular weight and narrow polydispersity

H. Bronstein, C. K. Luscombe*
Journal of the American Chemical Society 2009131(36)pp 12894-12895, DOI: 10.1021/ja9054977


4

Synthesis of fluoro-substituted silole-containing conjugated materials

S. Horst, N. R. Evans, H. Bronstein, C. K. Williams*
Journal of Polymer Science Part A: Polymer Chemistry 200947(19)pp 5116-5125, DOI: 10.1002/pola.23563

2008

3

Charge recombination in organic photovoltaic devices with high open-circuit voltages

S. Westenhoff, I. A. Howard, J. M. Hodgkiss, K. Kirov, H. Bronstein, C. K. Williams, N. C. Greenham, R. H. Friend*
Journal of the American Chemical Society 2008130(41)pp 13653-13658, DOI: 10.1021/ja803054g


2

An investigation into the phosphorescence of a series of regioisomeric Ir(III) complexes

H. Bronstein, C. E. Finlayson, K. R. Kirov, R. H. Friend, C. K. Williams*
Organometallics 200827(13)pp 2980-2989, DOI: 10.1021/om800014e

2007

1

Identification of oxidation products of squalene in solution and in latent fingerprints by ESI-MS and LC/APCI-MS

K. A. Mountfort, H. Bronstein, N. Archer, S. M. Jickells*
Analytical Chemistry 200779(7)pp 2650-2657, DOI: 10.1021/ac0623944