Since its first appearance in 2010, the optimal tuning of the range-separated hybrid functional has reshaped the landscape of computational chemistry, by placing routine DFT calculations on par with those of the prohibitively expensive many-body...
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...
Optimizing TADF emission Long-range corrected density functional theory can ameliorate some of the known problems of DFT dealing with charge transfer states (e.g. push-pull systems). These systems are of great interest for organic electronics, and...
The process of electrical doping, or charge transfer in general terms, was used in the early stages of developing organic electronics when conducting polymers were first discovered. Since then it has been largely unexplored in stark contrast...
On 15 August 2016, two papers were published in Nature Chemistry featuring ADF charge transfer calculations from Grozema & Renaud (TU Delft).
The performance of seven ruthenium dyes in DSSC devices was predicted employing a molecular model were the dye is linked to two Ti(OH)3 units. The theoretical efficiency of the dyes is determined by three factors: 1) the amount of...
Reactive Molecular Dynamics simulations with ReaxFF have been used successfully in combination with Time-Dependent Density Functional Theory (TDDFT) calculations to disclose structural features, aggregation characteristics, dynamics and spectroscopic properties of an organic dye adsorbed on a...
The Os(fipz)(tfa)(CO)3 (tfa = trifluoroacetate, fipz=3-trifluoromethyl-5-(1-isoquinolinyl)-1,2-pyrazole) complex shows excitation-dependent emission quantum yield. The higher-energy excitation (< 340 nm) contributes more to phosphorescence than fluorescence, implying stronger intersystem crossing (ISC) for highly excited singlet states. Theoretical...
In two recent publications, frozen density embedding has been used to study hole decay in DNA and long-range charge-separation processes. Charges and spins can be constrained in different subsystems with the linear-scaling subsystem DFT approach,...
The incident photon-to-current-conversion efficiency (IPCE) of dye-sensitized solar cells depends, amongst others, on the light-harvesting capabilities of the dye. In two recent studies, researchers from the Computational Lab for Hybrid/Organic Photovoltaics of CNR-ISTM Perugia, Italy,...