Professor of Functional Materials

Biography

I was born in Buenos Aires, Argentina in 1980 but grew up in London, UK. I studied Chemistry at Oxford, before going on to do a PhD at Imperial College with Prof. Charlotte Williams. I then spent a year at the University of Washington in Seattle working as a postdoc for Prof. Christine Luscombe. After this I returned to Imperial College to do a second postdoc with Prof. Iain McCulloch. I was awarded am Imperial College Junior Research Fellowship in 2012 before being appointed as a lecturer at University College London in 2013. In 2015 I was awarded an ERC starting grant and then in 2017 I was appointed as a lecturer joint between the physics and chemistry departments at the University of Cambridge. I was awarded an EPSRC fellowship in 2019 and then promoted to Professor (Grade 12) in 2022.

Research

Research in my group involves the synthesis of novel conjugated materials for use in organic solar cells, light emitting diodes and transistors. We are particularly interested in synthesizing materials that help understand and utilise triplet and other unusual excited states (eg. singlet fission, upconversion, reverse intersystem crossing) due to their unique and fascinating properties. The virtually infinite tunability of conjugated polymers means that they can be applied to an immense number of applications. My research group is currently made up of 6 PDRAs and 4 PhD students. We also have MSc students join the group every year. We work very closely with other research groups particularly in Physics resulting a mix of disciplines, people and ideas.

Traditionally, much of the development of novel materials has come from a “top-down” approach where a particular research group focuses on one/several types of application. My aim as a scientist is to begin the research process from the “bottom up”. I believe that by developing a true understanding of the fundamental properties of conjugated materials, simultaneous advancement across all areas of conjugated polymer research and its relevant applications.

There are a few key properties of conjugated polymers which are important across ALL applications, which if they could be controlled would offer rapid advances across all fields of research. For instance, it could be argued that in applications where there is interaction of light and matter, the three most important of these properties are: excited state energy, lifetime and diffusion length. My aim is to synthesize novel systems which allow us to firstly measure, and then control these basic properties which are still not understood.

By developing a true understanding of how structure (both primary chemical, and secondary morphological) affects the fundamental properties it will be possible to make rapid advances across all fields. In particular, using this approach I believe it is possible to make great advances in areas which I believe represent some key challenges for modern science (eg clean energy generation and storage)

Find out more about Professor Bronstein's research

Publications

Probing the chemical structure of monolayer covalent-organic frameworks grown via Schiff-base condensation reactions.
Y Hu, N Goodeal, Y Chen, AM Ganose, RG Palgrave, H Bronstein, MO Blunt
Chemical communications (Cambridge, England)
(2016)
52
Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells
D Baran, MS Vezie, N Gasparini, F Deledalle, J Yao, BC Schroeder, H Bronstein, T Ameri, T Kirchartz, I McCulloch, J Nelson, CJ Brabec
Journal of Physical Chemistry C
(2015)
119
Synthesis and exciton dynamics of triplet sensitized conjugated polymers
R Andernach, H Utzat, SD Dimitrov, I McCulloch, M Heeney, JR Durrant, H Bronstein
Journal of the American Chemical Society
(2015)
137
A Nature-Inspired Conjugated Polymer for High Performance Transistors and Solar Cells
KJ Fallon, N Wijeyasinghe, N Yaacobi-Gross, RS Ashraf, DME Freeman, RG Palgrave, M Al-Hashimi, TJ Marks, I McCulloch, TD Anthopoulos, H Bronstein
Macromolecules
(2015)
48
Operational electrochemical stability of thiophene-thiazole copolymers probed by resonant Raman spectroscopy.
J Wade, S Wood, D Beatrup, M Hurhangee, H Bronstein, I McCulloch, JR Durrant, J-S Kim
Journal of Chemical Physics
(2015)
142
Deep-red electrophosphorescence from a platinum(II)–porphyrin complex copolymerised with polyfluorene for efficient energy transfer and triplet harvesting
DME Freeman, G Tregnago, SA Rodriguez, KJ Fallon, F Cacialli, H Bronstein
Journal of Organic Semiconductors
(2015)
3
Conjugated polymer-porphyrin complexes for organic electronics.
RE Andernach, S Rossbauer, RS Ashraf, H Faber, TD Anthopoulos, I McCulloch, M Heeney, HA Bronstein
ChemPhysChem
(2015)
16
Scalable route to CH 3 NH 3 PbI 3 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
(2015)
3
Thieno[3,2-b]thiophene flanked isoindigo polymers for high performance ambipolar OFET applications
I Meager, M Nikolka, BC Schroeder, CB Nielsen, M Planells, H Bronstein, JW Rumer, DI James, RS Ashraf, A Sadhanala, P Hayoz, JC Flores, H Sirringhaus, I McCulloch
Advanced Functional Materials
(2014)
24
Bis-lactam-based donor polymers for organic solar cells: Evolution by design
JW Rumer, BC Schroeder, CB Nielsen, RS Ashraf, D Beatrup, H Bronstein, SJ Cryer, JE Donaghey, S Holliday, M Hurhangee, DI James, S Lim, I Meager, W Zhang, I McCulloch
Thin Solid Films
(2014)
560

Telephone number

01223 336697

Email address