A molecular anion of tris(8-hydroxyquinolinato)aluminum (Alq) was generated by a pulsed discharge to the solid sample under supersonic expansion and its photoelectron spectrum was recorded after mass selection. The vertical detachment energy of Alq and the adiabatic electron affinity of Alq were determined to be 1.24 ± 0.01 and 0.89 ± 0.04 eV, respectively. By using these energies determined for monomeric Alq, the reorganization energy for the intermolecular electron transport in bulk Alq was estimated to be 0.70 ± 0.08 eV.
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| http://dx.doi.org/10.1021/acsomega.8b02206 | DOI Listing |
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