Photochemical Dynamics Group


In Short

The aim of the Group for Photochemical Dynamics (Moser Group) is to contribute to the advancement of solar energy conversion science and technology through fundamental research. Efforts focus in particular on scrutinizing the mechanisms and ultrafast dynamics of light-induced electron transfer and charge separation at donor-acceptor heterojunctions, and in supramolecular assemblies.

Systems currently under study include hybrid organic-inorganic lead halide perovskite semiconductor thin films and quantized nanoparticles, dye-sensitized solar cells, and small molecule-based organic photovoltaic systems.

Ultrafast laser spectroscopy techniques, such as broadband transient absorption and fluorescence up-conversion, electro-modulated differential absorption, and time-resolved THz spectroscopies, are our main methods of investigation.

See Research Themes for more.

Selected Recent Publications

Exciton, Biexciton, and Hot Exciton Dynamics in CsPbBr3 Colloidal Nanoplatelets.
B. R. C. Vale, E. Socie, A. Burgos-Caminal, J. Bettini, M. A. Schiavon & J. E. Moser
J. Phys. Chem. Lett. 2020, 11, 387-394.

Hot carrier mobility dynamics unravel competing sub-ps cooling processes in lead halide perovskites.
A. Burgos-Caminal, J. M. Moreno-Naranjo, A. R. Willauer, A. A. Paraecattil, A. Ajdarzadeh & J.-E. Moser
arXiv preprint 2019, arXiv:1909.04589.

Crystal orientation drives the interface physics at two/three-dimensional hybrid perovskites.
M. E. F. Bouduban, V. I. E. Queloz, V. M. Caselli, K. T. Cho, A. R. Kirmani, S. Paek, C. Roldan-Carmona, L. J. Richter, J. E. Moser, T. J. Savenije, M K. Nazeeruddin & G. Grancini
J. Phys. Chem. Lett. 2019, 10, 5713-5720.

Inter-domain charge transfer as a rationale for superior photovoltaic performances of mixed halide lead perovskites.
M. E. F. Bouduban, F. Giordano, A. Rosspeintner, J. Teuscher, E. Vauthey, M. Grätzel & J.-E. Moser
arXiv preprint 2018, arXiv:1808.02768

Direct synthesis of selenium nanowire mesh on a solid substrate and insights into ultrafast photocarrier dynamics.
W. Yan, A. Burgos-Caminal, T. D. Gupta, J.-E. Moser & F. Sorin
J. Phys. Chem. C 2018, 122, 25134-25141.

Lateral intermolecular electronic interactions of diketopyrrolopyrrole D-π-A solar dye sensitizers adsorbed on mesoporous alumina.
H.-W. Bahng, A. Hagfeldt & J.-E. Moser
J. Phys. Chem. C 2018, 122, 19348-19358.

Charge separation and carrier dynamics in donor-acceptor heterojunction photovoltaic systems.
J. Teuscher, J. C. Brauer, A. Stepanov, A. Solano, A. Boziki, M. Chergui, J.-P. Wolf, U. Rothlisberger, N. Banerji & J.-E. Moser
Struct. Dyn. 2017, 4, 061503.

Dye-sensitized solar cells for efficient power generation under ambient lighting.
M. Freitag, J. Teuscher, Y. Saygili, X. Zhang, F. Giordano, P. Liska, J. Hua, S. M. Zakeeruddin, J.-E. Moser, M. Grätzel & A. Hagfeldt
Nat. Photon. 2017, 11, 372-378.

Energy and charge transfer cascade in methylammonium lead bromide perovskite nanoparticle aggregates.
M. E. F. Bouduban, A. Burgos-Caminal, R. Ossola, J. Teuscher & J.-E. Moser
Chem. Sci. 2017, 8, 4371-4380.

Perovskite photovoltaics: Slow recombination unveiled.
J.-E. Moser
Nat. Mater.
2017, 16, 4-6.