This work provides a detailed overview of density functional theory (DFT) methods for treating molecular and periodic systems within the TURBOMOLE software package. The implementation employs Gaussian-type orbitals and is based on efficient real-space techniques and density-fitting approaches for Coulomb…
This work presents a density functional theory (DFT)-based embedding technique for the calculation of optical gaps in ionic solids. The approach partitions the supercell of the ionic solid and embeds a small molecule-like cluster in a periodic environment using a cluster-in-periodic embedding method.…
Complex chemical systems pose formidable challenges to electronic structure theory. While density functional theory (DFT), a popular lower-level quantum mechanical method, can efficiently handle large systems with hundreds of atoms, it is plagued by issues such as self-interaction error and the use of…
Abstract Nonlinear optical properties of organic semiconductors (OSCs) have been extensively investigated in the perturbative regime, while strong light induced high‐order processes in solid‐state OSCs are less studied. Here, below‐threshold harmonic generation is examined, both experimentally and theoretically,…