Journal Article 2 transition density matrix DFT/MRCI 1 Dendrimers 1 Research Support, Non-U.S. Gov't 1 TDDFT 1 density-functional theory 1 mehr ... local excitation and charge-transfer excitation 1 nonfullerene acceptors 1 organic solar cell 1 spin-component scaling modification ADC(2) (SCS-ADC(2)) 1 time-dependent density-functional theory 1 tree-like conjugated molecules 1 weniger ...