Assoc. Prof. Asaph Widmer-Cooper | ARC Centre of Excellence in Exciton Science

Widmer-Cooper is a computational chemist with expertise in modelling the structure and dynamics of amorphous, crystalline and self-assembled materials. He helps develop solution-processed materials for extracting energy from sunlight and contributes to fundamental studies of exciton behaviour.

Centre Research Themes: 
1. Excitonic Systems for Solar Energy Conversion
2. Control of Excitons
Summary of any other of your centre responsibilities: 
  • Deputy Champion of the Multiscale Modelling Platform
  • University of Sydney Node Manager
  • Member of the Equity and Diversity Committee



Journal Articles
Lin, Q.; Bernardi, S.; Shabbir, B.; Ou, Q.; Wang, M.; Yin, W.; Liu, S.; Chesman, A. S. R.; Fürer, S. O.; Si, G.; et al. Phase-Control of Single-Crystalline Inorganic Halide Perovskites via Molecular Coordination Engineering. Advanced Functional Materials 2022, 32 (16), 2270096 DOI: 10.1002/adfm.202109442. doi: 10.1002/adfm.202109442
Liu, Y.; Wood, J. A.; Giacometti, A.; Widmer-Cooper, A. The thermodynamic origins of chiral twist in monolayer assemblies of rod-like colloids. Nanoscale 2022, 14 (45), 16837 - 16844 DOI: 10.1039/D2NR05230J. doi: 10.1039/D2NR05230J
Bo, A.; Liu, Y.; Kuttich, B.; Kraus, T.; Widmer-Cooper, A.; de Jonge, N. Nanoscale Faceting and Ligand Shell Structure Dominate the Self‐Assembly of Nonpolar Nanoparticles into Superlattices. Advanced Materials 2022, 34 (20), 2109093 DOI: 10.1002/adma.202109093. doi: 10.1002/adma.202109093
Liu, Y.; Wei, J.; Frenkel, D.; Widmer-Cooper, A. Modelling aggregates of cetyltrimethylammonium bromide on gold surfaces using dissipative particle dynamics simulations. Molecular Simulation 2022, 48 (10), 872-881 DOI: 10.1080/08927022.2021.1948546. doi: 10.1080/08927022.2021.1948546
Zhang, H.; Liu, Y.; Ashokan, A.; Gao, C.; Dong, Y.; Kinnear, C.; Kirkwood, N.; Zaman, S.; Maasoumi, F.; James, T. D.; et al. A General Method for Direct Assembly of Single Nanocrystals. Advanced Optical Materials 2022, 10 (14), 2200179 DOI: 10.1002/adom.202200179. doi: 10.1002/adom.202200179
Stamper, C.; Sabatini, R. P.; Bernardi, S.; Liao, C.; Dennis, E.; Sharma, A.; Widmer-Cooper, A.; Saidaminov, M. I.; Ho‐Baillie, A. W. Y.; Lakhwani, G. Magnetic optical rotary dispersion and magnetic circular dichroism in methylammonium lead halide perovskites. Chirality 2021, 33 (10), 610 - 617 DOI: 10.1002/chir.23346. doi: 10.1002/chir.23346
Zhang, H.; Liu, Y.; Shahidan, M. Faris Shah; Kinnear, C.; Maasoumi, F.; Cadusch, J.; Akinoglu, E. Metin; James, T. D.; Widmer-Cooper, A.; Roberts, A.; et al. Direct Assembly of Vertically Oriented, Gold Nanorod Arrays. Advanced Functional Materials 2021, 31 (6), 2006753 DOI: 10.1002/adfm.202006753. doi: 10.1002/adfm.202006753
Dvořák, M.; Prasad, S. K. K.; Dover, C. B.; Forest, C. R.; Kaleem, A.; MacQueen, R. W.; Petty, A. J.; Forecast, R.; Beves, J. E.; Anthony, J. E.; et al. Singlet Fission in Concentrated TIPS-Pentacene Solutions: The Role of Excimers and Aggregates. Journal of the American Chemical Society 2021, 143 (34), 13749 - 13758 DOI: 10.1021/jacs.1c05767. doi: 10.1021/jacs.1c05767
Wood, J. A.; Liu, Y.; Widmer-Cooper, A. Crystal nucleation in colloidal rod suspensions: The effect of depletant size. The Journal of Chemical Physics 2021, 154 (24), 244505 DOI: 10.1063/5.0052623. doi: 10.1063/5.0052623
Liu, Y.; Widmer-Cooper, A. A dissipative particle dynamics model for studying dynamic phenomena in colloidal rod suspensions. The Journal of Chemical Physics 2021, 154 (10), 104120 DOI: 10.1063/5.0041285. doi: 10.1063/5.0041285
Monego, D.; Kister, T.; Kirkwood, N.; Doblas, D.; Mulvaney, P.; Kraus, T.; Widmer-Cooper, A. When Like Destabilizes Like: Inverted Solvent Effects in Apolar Nanoparticle Dispersions. ACS Nano 2020, 14 (5), 5278 - 5287 DOI: 10.1021/acsnano.9b03552. doi: 10.1021/acsnano.9b03552
Monego, D.; Kister, T.; Kirkwood, N.; Mulvaney, P.; Widmer-Cooper, A.; Kraus, T. Correction to “On the Colloidal Stability of Apolar Nanoparticles: The Role of Ligand Length”. Langmuir 2020, 36 (36), 10892 - 10893 DOI: 10.1021/acs.langmuir.0c02478. doi: 10.1021/acs.langmuir.0c02478
Sabatini, R. P.; Liao, C.; Bernardi, S.; Mao, W.; Rahme, M. S.; Widmer-Cooper, A.; Bach, U.; Huang, S.; Ho‐Baillie, A. W. Y.; Lakhwani, G. Solution‐Processed Faraday Rotators Using Single Crystal Lead Halide Perovskites. Advanced Science 2020, 7 (7), 1902950 DOI: 10.1002/advs.201902950. doi: 10.1002/advs.201902950
Rathnayake, P. V. G. M.; Bernardi, S.; Widmer-Cooper, A. Evaluation of the AMOEBA force field for simulating metal halide perovskites in the solid state and in solution. The Journal of Chemical Physics 2020, 152 (2), 024117 DOI: 10.1063/1.5131790. doi: 10.1063/1.5131790
Mao, W.; Hall, C. R.; Bernardi, S.; Cheng, Y. - B.; Widmer-Cooper, A.; Smith, T. A.; Bach, U. Light-induced reversal of ion segregation in mixed-halide perovskites. Nature Materials 2020 DOI: 10.1038/s41563-020-00826-y. doi: 10.1038/s41563-020-00826-y
Sharma, A.; Wojciechowski, J. P.; Liu, Y.; Pelras, T.; Wallace, C. M.; Müllner, M.; Widmer-Cooper, A.; Thordarson, P.; Lakhwani, G. The Role of Fiber Agglomeration in Formation of Perylene-Based Fiber Networks. Cell Reports Physical Science 2020, 1 (8), 100148 DOI: 10.1016/j.xcrp.2020.100148. doi: 10.1016/j.xcrp.2020.100148
Liu, Y.; Bernardi, S.; Widmer-Cooper, A. Stability of pinned surface nanobubbles against expansion: Insights from theory and simulation. The Journal of Chemical Physics 2020, 153 (2), 024704 DOI: 10.1063/5.0013223. doi: 10.1063/5.0013223
Lloyd, J. A.; Liu, Y.; Ng, S. Hock; Thai, T.; Gómez, D. E.; Widmer-Cooper, A.; Bach, U. Self-assembly of spherical and rod-shaped nanoparticles with full positional control. Nanoscale 2019, 11 (47), 22841-22848 DOI: 10.1039/C9NR06679A. doi: 10.1039/C9NR06679A
Liu, Y.; Widmer-Cooper, A. A versatile simulation method for studying phase behavior and dynamics in colloidal rod and rod-polymer suspensions. The Journal of Chemical Physics 2019, 150 (24), 244508 DOI: 10.1063/1.5096193. doi: 10.1063/1.5096193
Monego, D.; Kister, T.; Kirkwood, N.; Mulvaney, P.; Widmer-Cooper, A.; Kraus, T. Colloidal Stability of Apolar Nanoparticles: Role of Ligand Length. Langmuir 2018, 34 (43), 12982 - 12989 DOI: 10.1021/acs.langmuir.8b02883. doi: 10.1021/acs.langmuir.8b02883
Kister, T.; Monego, D.; Mulvaney, P.; Widmer-Cooper, A.; Kraus, T. Colloidal Stability of Apolar Nanoparticles: The Role of Particle Size and Ligand Shell Structure. ACS Nano 2018, 12 (6), 5969 - 5977 DOI: 10.1021/acsnano.8b02202. doi: 10.1021/acsnano.8b02202