Hogan C.Palummo M.Gierschner, JohannesRubio A.2020-12-152020-12-152013http://hdl.handle.net/20.500.12614/2108enAtribuciĆ³n-NoComercial-SinDerivadas 3.0 EspaƱaCorrelation effects in the optical spectra of porphyrin oligomer chains: Exciton confinement and length dependenceresearch article10.1063/1.4773582open access