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Nature has had 2.4 billion years to evolve and engineer excited state dynamics. From photosynthesis to vision to photoenzymes, we examine natural mechanisms to steer excited states. Our goal is to isolate and identify new design principles to control quantum dynamics.
More on PhotosynthesisElectronic excited states carry enough energy to make and break chemical bonds. Photochemistry operates outside the Born-Oppenheimer regime -- thereby escaping our standard chemical intuition. We seek new strategies to steer excited states and to control their reactivity.
More on PhotochemistryYou can't engineer what you can't see. We build new spectroscopic tools to probe femtosecond dynamics of electronic excitations. In living cells, protein complexes, and small molecules, we capture how these systems evolve with unprecedented depth and specificity.
More on Spectroscopy
Welcome to Qirui Wang, who is joining the group as a graduate student rotator.
Welcome to Xander Wilcox and Brayden Banks, who are joining the group as graduate student rotators.
Welcome to Juho Kim, who is joining the group as a summer graduate student rotator.
Welcome to Advait Risbud, Gabriel Levine, and Jack Callahan, who are joining the group as summer graduate student rotators.
Congratulations to Coco Li and our collaborators in the Alivisatos group on having their paper entitled, "Efficient Up-Conversion in CsPbBr3 Nanocrystals via Phonon-Driven Exciton-Polaron Formation" published in Nature Communications.
Congratulations to Qijie Shen on receiving a travel grant to support her attendance at 2025 Photosynthesis Gordon Research Conference.
A.S. Abbas, B.C. Li, R.D. Schaller, V.B. Prakapenka, S. Chariton, D. Bian, G.S. Engel and A.P. Alivisatos, "Efficient Up-Conversion in CsPbBr3 Nanocrystals via Phonon-Driven Exciton-Polaron Formation",
B.C. Li*, K. Lin*, P.-J. Wu, A. Gupta, K. Peng, S. Sohoni, J.C. Ondry, Z. Zhou, C.C. Bellora, Y.J. Ryu, S. Chariton, D.J. Gosztola, V.B. Prakapenka, R.D. Schaller, D.V. Talapin, E. Rabani and G.S. Engel, "Exciton-phonon Coupling and Phonon-assisted Exciton Relaxation Dynamics in In1-xGaxP Quantum Dots",
* These authors contributed equally
B.C. Li, H. Cairney, Y. Jin, J. Park, S. Sohoni, L.T. Lloyd, Y. Liu, J.E. Jureller, Y.J. Ryu, S. Chariton, V.B. Prakapenka, R.D. Schaller, G. Galli and G.S. Engel, "Connectivity-dependent Exciton-phonon Coupling in Cesium Bismuth Halide Quantum Dots",
H. Gestsson, C. Nation, J.S. Higgins, G.S. Engel and A. Olaya-Castro, "Non-perturbative exciton transfer rate analysis of the Fenna-Matthews-Olson photosynthetic complex under reducing and oxidizing conditions",
S.H. Sohail, S. Sohoni, P.-C. Ting, L.R. Fantz, S.M. Abdulhadi, C. MacGregor-Chatwin, A. Hitchcock, C.N. Hunter, G.S. Engel and S.C. Massey, "Functional Connectivity of Red Chlorophylls in Cyanobacterial Photosystem I Revealed by Fluence-Dependent Transient Absorption",
