Stefan T. Bromley

Stefan T. Bromley

Universitat de Barcelona

Engineering Sciences

Stefan Bromley heads the Nanoclusters and Nanostructured Materials (www.ub.edu/nnmgroup) group within the Institute of Theoretical and Computational Chemistry at the University of Barcelona (IQTC-UB). He obtained his PhD in Computational Physics (University of Southampton, UK) in 1997 and has held research posts in the UK (Postdoctoral fellow, Royal Institution), the Netherlands (Associate Professor, Delft University of Technology) and Spain (Ramón y Cajal fellow, UB). He has published over 200 articles and given many invited talks about his work at international conferences and academic institutions. He has also co-edited two books and co-authored two reviews on computational modelling of nanoparticles and nanomaterials.

Research interests

With the constant technological drive for device miniaturisation, materials are increasingly being used at scales of only a few 100s or 1000s of atoms (i.e. the nanoscale). Such nanomaterials display novel size-dependent properties compared to materials at everyday length scales. Employing classical atomistic and quantum chemical modelling methods implemented on powerful supercomputers, we aim to provide a detailed predictive understanding of the structural, electronic and chemical properties of nanomaterials. We focus on how nanomaterials evolve with size, and designing new materials from nanoscale building blocks. Our research follows three main themes:
1) Inorganic nanoclusters and nanostructured materials for energy applications (e.g TiO2, ZnO, CeO2).
2) Nucleation, growth and properties of nano-sized cosmic dust particles (e.g. nanosilicates).
3) Design and understanding of low-dimensional materials for electronics/spintronics using organic molecular building blocks .

Selected publications

– Santiago R Carvajal MA Poater J Moreira IDR Bromley ST Deumal M Ribas-Ariño J 2025, ‘Rational design of organic diradicals with robust high-spin ground state based on antiaromatic linkers‘, Chemical Science, 16, 430 – 447.
– Recio-Poo M, Shakiba M, Illas F, Bromley ST, Akimov AV, Morales-García A 2025, ‘Hydration Accelerates Radiative and Nonradiative Recombination in Small TiO2 Nanoclusters‘, Journal of Physical Chemistry C, 129, 1806 – 1823.
– Recio-Poo M, Morales-García A, Bromley ST 2025, ‘Impact of Surface Hydroxylation on the Structural and Electronic Properties of 2-3.5 nm Diameter Crystalline and Amorphous Titania Nanoparticles‘, Journal of Physical Chemistry C 129, 3299 – 3309.
– Morales-Salvador R, Demiroglu I, Viñes F & Bromley ST 2025, ‘Tuning the electronic properties of ZnO nanofilms via strain-induced structural phase transformations and quantum confinement‘, Nanoscale, 17, 8764 – 8777.
– Guiu JM, Bakker JM, Bernhardt TM, Plane JMC, Bromley ST & Lang SM 2025, ‘Oxygen-rich anionic metal silicate clusters as nucleation seeds for noctilucent clouds‘, npj Climate and Atmospheric Science, 8, 153.
– Jutglar-Lozano K, Deumal M, Ribas-Arino J & Bromley ST 2025, ‘Rational Design of Electric Field-Responsive Building Blocks for All-Organic 2D Magnetoelectric Materials‘, Journal of the American Chemical Society, 147, 22550 – 22561.
– Recio-Poo M Rotteger CH Illas F Bromley ST Morales-Garcia A Sayres SG Akimov AV, 2025 ‘Revealing Recombination and Ultrafast Relaxation Mechanisms in Atomically Precise Titania Nanoclusters‘, Journal of the American Chemical Society, 147, 40900 – 40909.
– Potapov A, Mccoustra MRS, Tazaki R, Bergin EA, Bromley ST, Garrod RT & Rimola A 2025, ‘Is cosmic dust porous?‘, Astronomy and Astrophysics Review, 33, 1 – 6.

Selected research activities

Invited talk: “Understanding Trapped Molecular Water on Silicate Grain Surfaces” 38th European Conference on Surface Science (ECOSS-38), Braga (Portugal) August 2025.