Highlights with ‘TDDFT’

AMS & Science Webinar Series

Following the release of AMS2022, we are organizing a new series of webinars. We thereby aim to combine scientific presentations and lectures from our expert collaboration partners with online demonstrations of novel and exciting functionality...

The BCL Method for Dye-Sensitized Solar Cell: Basis and Applications

The BCL method is a theoretical framework to understand and predict dyes and their efficiency in solar cells. The method is comprehensively presented in a recent paper. It is based on a system of equations...

Understanding halide perovskite solution chemistry

Solution synthesis is one of the most commonly employed method to prepare metal-halide perovskites for optoelectronic applications. A controlled perovskite growth from solution is crucial to obtain high quality materials and requires a deep understanding...

Optical and photoluminescence properties of gold and silver nanoclusters

Silver and gold nanoclusters (NCs) have proven to be efficient and stable, with optical and emissive properties that can be tuned by changing the cluster’s geometric and electronic parameters. Due to the dependence of size,...

Fast & efficient plasmonic excitations in metallic nanoparticles

The great potential of employing tight-binding approximations after a regular DFT ground state calculation has been demonstrated in a recent paper. With the TD-DFT+TB approach (see thesis by Robert Rüger), plasmon resonances in large silver, gold,...

Accurate optical spectra of semi-conductors and insulators

Our BAND developers in Toulouse published a simple yet accurate method to obtain accurate optical spectra for semi-conductors and insulators. In a recent Phys. Rev. B paper they combine time-dependent DFT with the dynamical Polarization...

Geometry Optimization with the Optimally Tuned Range-Separated Hybrid Functional

The state-of-the-art DFT is, as it turns out, too accurate for gas-phase calculations to be relevant to materials research.  Dielectric effects can be readily accounted for within the optimally tuned range-separated hybrid (OT-RSH) functional framework...

Chiroptical activity of bisphosphine-stabilized gold clusters studied with ADF

By running DFT and TDDFT calculations with ADF, Natalia V. Karimova and Christine M. Aikens could gain detailed insight into the origin of chiroptical activity and the effects of ligands in bisphosphine-stabilized gold clusters [Au11X4Cl2]+ and [Au8X3(PPh3)2]2+ (X...

Photoinduced Charge Separation in Organic Photovoltaics: Effect of Dispersion

The effects of dispersion forces on the structure and charge separation (CS) in the P3HT/PCBM dimer were studied using state-of-the-art computational methods in ADF (DFT-D3, TDDFT–CAMYB3LYP). The authors demonstrate the importance to properly account for...

PhD thesis Robert Rüger: Fast Excited State Calculations

Congratulations to Dr. Robert Rüger! On 14 February Robert successfully defended his PhD thesis entitled Approximations in Density Functional Based Excited State Calculations, describing the development, benchmarking and applications of fast methods for UV/VIS methods. Robert...