{Stable|Steady}, π-conjugated radical anions of boron-nitrogen dihydroindeno[1,2-b]fluorenes
{We have|We’ve|We’ve got} {recently|lately|not too long ago} reported the synthesis and application of boron-nitrogen dihydroindenofluorene derivatives as acceptors in organic photovoltaic (OPV) devices. Their modest observed efficiencies {may|might|could|may possibly|may well|may…