Group Research Profile

The Jang group combines theory development and computational modeling to investigate dynamical and kinetic processes in complex molecular environments. Particular focus of the group's research has been on the quantum dynamics of excitons and charge carriers in photosynthetic light harvesting complexes and conjugated organic molecules, which have significant implications for the next generation of solar energy conversion devices. The Jang group is also interested in the development of a broad range of quantum dynamics theories and computational methods. Examples include path integral based methods and quantum master approaches. The ultimate goal of these efforts is developing general-purpose quantum dynamics software packages that can be interfaced with existing quantum chemistry and classical molecular dynamics codes. Most recently, the Jang group has also been conducting theoretical and computational research on olfaction and chemical sensing.

Published Books

  1. Seogjoo J. Jang. (2023). Quantum Mechanics for Chemistry. Springer Nature. DOI: https://doi.org/10.1007/978-3-031-30218-3. ISBN: 978-3-031-30217-6, 978-3-031-30220-6, 978-3-031-30218-3.
  1. Seogjoo J. Jang. (2020). Dynamics of Molecular Excitons. Elsevier. ISBN: 9780081023358, 9780081023365.

Selected Recent Publications

  1. Seogjoo J. Jang and Young Min Rhee; "Modified Fermis golden rule rate expressions," Journal of Chemical Physics, 159, 014101 (2023)
  2. Davinder Singh, Seogjoo J. Jang, and Changbong Hyeon; "Fundamental trade-off between the speed of light and the Fano factor of photon current in three-level lambda systems," Journal of Physics A: Mathematical and Theoretical 56, 015001 (2023)
  3. Seogjoo J. Jang; "Partially polaron-transformed quantum master equation for exciton and charge transport dynamics," Journal of Chemical Physics 157, 104107 (2022)
  4. Seogjoo J. Jang, Irene Burghardt, Chao-Ping Hsu, and Christopher J. Bardeen, "Excitons: Energetics and spatiotemporal dynamics," Journal of Chemical Physics 155, 200401 (2021)
  5. Seogjoo J. Jang; "A simple generalization of the energy gap law for nonradiative processes," Journal of Chemical Physics 155, 164106 (2021)
  6. Andrew M Levine, Guiying He, Guanhong Bu, Pablo Ramos, Fanglue Wu, Aisha Soliman, Jacqueline Serrano, Dorian Pietraru, Christopher Chan, James D Batteas, Marta Kowalczyk, Seogjoo J. Jang, Brent L Nannenga, Matthew Y Sfeir, Esther H R. Tsai, and Adam B Braunschweig; "Efficient Free Triplet Generation Follows Singlet Fission in Diketopyrrolopyrrole Polymorphs with Goldilocks Coupling," Journal of Physical Chemistry C 125, 12207 - 12213(2021)
  7. Kara Ng, Megan Webster, William P Carbery, Nikunjkumar Visaveliya, Pooja Gaikwad, Seogjoo J. Jang, Ilona Kretzschmar, and Dorthe M Eisele; "Frenkel excitons in heat-stressed supramolecular nanocomposites enabled by tunable cage-like scaffolding," Nature Chemistry 12, 1157 - 1164 (2020)
  8. Lei Yang and Seogjoo J. Jang; "Theoretical investigation of non-Forster exciton transfer mechanisms in perylene diimide donor, phenylene bridge, and terrylene diimide acceptor systems," Journal of Chemical Physics 153, 144305 (2020)
  9. Ning Chen, Murali Devi, and Seogjoo J. Jang; "Computational modeling of charge hopping dynamics along a disordered one-dimensional wire with energy gradients in quantum environments," Journal of Chemical Physics 153, 054109 (2020)
  10. Seogjoo J. Jang; "Dynamics of molecular excitons," Book in Nanophotonics Series (ISBN: 9780081023358)(Elsevier) (2020)

© 2023 The Jang Group, Chemistry Department, Queens College, CUNY.