Results 31 to 40 of about 827,605 (367)

Excited State Properties of Point Defects in Semiconductors and Insulators Investigated with Time-Dependent Density Functional Theory. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2023
We present a formulation of spin-conserving and spin-flip hybrid time-dependent density functional theory (TDDFT), including the calculation of analytical forces, which allows for efficient calculations of excited state properties of solid-state systems ...
Yu-Ming Jin   +4 more
semanticscholar   +1 more source

Revisiting the Performance of Time-Dependent Density Functional Theory for Electronic Excitations: Assessment of 43 Popular and Recently Developed Functionals from Rungs One to Four. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2022
In this paper, the performance of more than 40 popular or recently developed density functionals is assessed for the calculation of 463 vertical excitation energies against the large and accurate QuestDB benchmark set.
Jiashu Liang   +3 more
semanticscholar   +1 more source

Computational Study of Photodegradation Process and Conversion Products of the Antidepressant Citalopram in Water

open access: yesMolecules, 2023
Citalopram (CIT) is a commonly prescribed medication for depression. However, the photodegradation mechanism of CIT has not yet been fully analyzed. Therefore, the photodegradation process of CIT in water is studied by density functional theory and time ...
Yifan Shen   +5 more
doaj   +1 more source

New developments in fission studies within the time-dependent density functional theory framework [PDF]

open access: yesEPJ Web of Conferences, 2023
We have extended significantly the microscopic description of the fission process by examining a larger set of observables. We extract neutron and proton numbers of fission fragments, their spins and fission fragment relative orbital angular momentum and
Bulgac Aurel
doaj   +1 more source

Double and Charge-Transfer Excitations in Time-Dependent Density Functional Theory. [PDF]

open access: yesAnnual review of physical chemistry (Print), 2021
Time-dependent density functional theory has emerged as a method of choice for calculations of spectra and response properties in physics, chemistry, and biology, with its system-size scaling enabling computations on systems much larger than otherwise ...
N. Maitra
semanticscholar   +1 more source

Fundamentals of Time-Dependent Density Functional Theory [PDF]

open access: yesN/A, 2012
Part I Theory and Experiment - Why We Need TDDFT.- Part II Basic Theory.- PartIII Advanced Concepts.- Part IV Real-Time Dynamics.- Part V Numerical Aspects.- Part VI TDDFT vs Other Theoretical Techniques.
Ed. M.A.L. Marques   +4 more
openaire   +3 more sources

Time Evolution of Plasmonic Features in Pentagonal Ag Clusters

open access: yesMolecules, 2023
In the present work, we apply recently developed real-time descriptors to study the time evolution of plasmonic features of pentagonal Ag clusters. The method is based on the propagation of the time-dependent Schrödinger equation within a singly excited ...
Nicola Domenis   +5 more
doaj   +1 more source

Time Dependent- Density Functional Theory calculations on frequency-dependent photophysical properties of 2, 3-diphenylcyclopropenone

open access: yesFountain Journal of Natural and Applied Sciences (FUJNAS), 2017
Time Dependent Density Functional Theory (TD-DFT/B3LYP/6-31G*) calculations have been performed on the optimized structure of 2, 3-diphenylcyclopropenone (DPCP) in the UV region of the spectra; giving energies, oscillator strength, dipole moment, µ and ...
N. O. Obi-Egbedi, M. D. Adeoye
doaj   +3 more sources

Modeling of plasmonic properties of nanostructures for next generation solar cells and beyond

open access: yesAdvances in Physics: X, 2021
Plasmonic particles and nanostructures are widely used in photovoltaic and photonics. Surface plasmons were found to enhance different types of solar cells including plasmonic DSSCs, plasmonic solid semiconductor solar cells, plasmonic organic solar ...
Sergei Manzhos   +3 more
doaj   +1 more source

Non-Equilibrium Aspects of Fission Dynamics within the Time Dependent Density Functional Theory [PDF]

open access: yesEPJ Web of Conferences
We will cover briefly the time-dependent density functional theory approach, extended to include pairing correlations, to induced fission of 238U(n,f), 241,243Pu, and 238Np, and also results on scission neutrons and a number of very nontrivial aspects of
Bulgac Aurel   +3 more
doaj   +1 more source

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