Tregnago G.Wykes M.Paternò G.M.Beljonne D.Cacialli F.2020-12-042020-12-042015http://hdl.handle.net/20.500.12614/1119application/pdfenAtribución-NoComercial-SinDerivadas 3.0 EspañaAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Low-temperature photoluminescence spectroscopy of solvent-free PCBM single-crystalsresearch article10.1021/acs.jpcc.5b02345open access