New 4,5-Diaza-9,9\textquotesingle-spirobifluorene Derivative—A Promising Electron Acceptor for Nonfullerene Polymer Solar Cellsстатья
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Дата последнего поиска статьи во внешних источниках: 17 июля 2019 г.
Аннотация:A new 4,5-diaza-9,9'-spirobifluorene derivative 8 containing two electron-withdrawing perylenediimide moieties has been synthesized. The compound has been characterized by NMR, elemental analysis,
UV spectroscopy, and cyclic voltammetry. The HOMO/LUMO energies of compound 8 are –5.81 eV/–3.89 eV;
the = 1.75 eV, and = 1.92 eV. Low HOMO/LUMO energies and strong absorption in the visible range
of the UV spectrum point to the possibility to use compound 8 as a promising electron acceptor for nonfullerene polymer solar cells.