S
Sergei Tretiak
Researcher at Los Alamos National Laboratory
Publications - 475
Citations - 28719
Sergei Tretiak is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Excited state & Density functional theory. The author has an hindex of 73, co-authored 415 publications receiving 23905 citations. Previous affiliations of Sergei Tretiak include European University of Brittany & University of Central Florida.
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Theoretical study of the effects of solvent environment on photophysical properties and electronic structure of paracyclophane chromophores
TL;DR: First-principles quantum-chemical approaches are used to study absorption and emission properties of recently synthesized distyrylbenzene derivative chromophores and their dimers, and suggest two mechanisms for the excited-state lifetime increase in aqueous solutions.
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Charge carrier dynamics in two-dimensional hybrid perovskites: Dion–Jacobson vs. Ruddlesden–Popper phases
Dibyajyoti Ghosh,Debdipto Acharya,Debdipto Acharya,Laurent Pedesseau,Claudine Katan,Jacky Even,Sergei Tretiak,Amanda Neukirch +7 more
TL;DR: In this paper, the dominant non-radiative carrier recombination and dephasing processes in Ruddlesden-Popper (RP) and DJ monolayered lead halide perovskites were compared at room temperature.
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Determination of exciton-phonon coupling elements in single-walled carbon nanotubes by Raman overtone analysis.
Andrew P. Shreve,Erik H. Haroz,Sergei M. Bachilo,R. Bruce Weisman,Sergei Tretiak,Svetlana Kilina,Stephen K. Doorn +6 more
TL;DR: The Huang-Rhys factors obtained from the modeling are directly related to the magnitude of the RBM exciton-phonon coupling element, which is shown to be in a weak coupling limit.
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Ligands Slow Down Pure-Dephasing in Semiconductor Quantum Dots.
TL;DR: The authors' simulations demonstrate that elastic scattering slows down in CdSe QDs passivated with ligands compared to that in bare QDs, and the pure-dephasing time is increased and the homogeneous luminescence line width is decreased in the presence of ligands.
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Chemical Bonding and Size-Scaling of Nonlinear Polarizabilities of Conjugated Polymers.
TL;DR: Using sum rules for spectral moments of linear and nonlinear absorption, it is shown that the jth order off-resonant polarizabilities of polyacetylene chains scale as ,jD2jNj11ysN 1 Ldj ; N is the number of carbon atoms, D the bond-length alternation, and LsDd the exciton coherence size.