Hybrid functionals improve TDDFT exciton energies for short-range cases in C60-PTCDA complexes, but the simpler PBE functional becomes more accurate for long-range excitons as the radius approaches the screening length.
et al Han Y., Cao L.J Mater Sci, 53:1326–1334
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Exciton screening in C$_{60}$ and PTCDA complexes. TDDFT calculations with GGA and hybrid functionals
Hybrid functionals improve TDDFT exciton energies for short-range cases in C60-PTCDA complexes, but the simpler PBE functional becomes more accurate for long-range excitons as the radius approaches the screening length.