The Engel Group chooses problems at the interface of theory and experiment where we can test our understanding of excited state dynamics. We look for new design principles to control chemical reactivity, and we often find our inspiration in biological systems. We create new spectrometers of our own design to reveal new dynamics and new organizing principles for steering chemical reactivity. We approach our problems through a careful balance of synthesis, spectroscopy, theory, and biophysics.
S-H Yeh, R. Hoehn, M.A. Allodi, G.S. Engel, and S. Kais, "Elucidation of near-resonance vibronic coherence lifetimes by nonadiabatic electronic-vibrational state character mixing", PNAS 116 18263-18268 2019.
L. Wang*, M.A. Allodi* and G.S. Engel, "Quantum coherences reveal excited state dynamics in biophysical systems", Nat. Rev. Chem. 3 477–490 2019.
Z. Hu, G.S. Engel, and S. Kais, "Double-excitation manifold’s effect on exciton transfer dynamics and the efficiency of coherent light harvesting", PCCP 20, 30032-30040 2018.
E.M. Janke*, N.E. Williams*, C. She, D. Zherebetskyy, M. Hudson, L. Wang, D.J. Gosztola, R.D. Schaller, B. Lee, C. Sun, G.S. Engel, D.V. Talapin, "The origin of broad emission spectra in InP quantum dots: contributions from structural and electronic disorder", JACS 140, 15791–15803 2018.
Z. Hu, G.S. Engel, and S. Kais, "Connecting bright and dark states through accidental degeneracy caused by lack of symmetry", J. Chem. Phys. 148, 204307 2018.
J. Otto, L. Wang, I. Pochorovski, S.M. Blau, A. Aspuru-Guzik, Z. Bao, G.S. Engel, and M. Chiu, "Disentanglement of Excited-State Dynamics with Implications for FRET Measurements: Two-Dimensional Electronic Spectroscopy of a BODIPY-Functionalized Cavitand", Chemical Science 9, 3694-3703 2018.
Z. Hu, G.S. Engel, F. Alharbi, and S. Kais , "Dark states and delocalization: competing effects of quantum coherence on the efficiency of light harvesting systems", J. Chem. Phys. 48, 064304 2018.
L. Wang, N.P. Brawand, M. Vörös, P.D. Dahlberg, J.P. Otto, N.E. Williams, D.M. Tiede, G. Galli, and G.S. Engel, "Excitations Partition into Two Distinct Populations in Bulk Perovskites", Adv. Opt. Mat. 1700975 2018.