Theory

Theory

Theory

Alongside our experimental efforts, we develop, apply and explore new theoretical models to understand energy transport through disordered materials. We interrogate dynamics in both natural and artificial systems (plus the occasional Gedankenexperiment!) to isolate and test design principles of excitonic transport. We also explore new strategies to extract more information from nonlinear spectroscopic data including filtering, signal processing, and identifying new spectral signatures in our data.

M. Bednarz, J. Lapin, R. McGillicuddy, K.M. Pelzer, G.S. Engel, and G.B. Griffin, "Modeling Ultrafast Exciton Migration Within the Electron Donor Domains of Bulk Heterojunction Organic Photovoltaics" J. Phys. Chem. C, 121, 5467–5479 2017.

Y. Zhang, A. Wirthwein, F.H. Alharbi, G.S. Engel, and S. Kais., "Dark states enhance the photocell power via phononic dissipation" Phys. Chem. Chem. Phys. 18, 31845-31849 2016.

V. P. Singh, M. Westberg, C. Wang, P. D. Dahlberg, T. Gellen, A. T. Gardiner, R. J. Cogdell, and G. S. Engel, "Towards quantification of vibronic coupling in photosynthetic antenna complexes" J. Chem. Phys. 142, 212446 2015.

Y. Zhang, S. Oh, F.H. Alharbi, G.S. Engel, and S. Kais, "Delocalized quantum states enhance photocell efficiency" Phys. Chem. Chem. Phys. 17, 5743-5750 2015.

K.M. Pelzer, T. Can, S.K. Gray, D.K Morr, and G.S.Engel, "Coherent Transport and Energy Flow Patterns in Photosynthesis under Incoherent Excitation" J. Phys. Chem. B 118, 2693−2702 2014.