Oleksandr Yushchenko

TL;DR: The fluorescence and triplet quantum yields of rNDI, thus, can be substantially changed by a simple variation of the excitation wavelength.

TL;DR: The physicochemical properties of cationic dioxa, azaoxa, and diaza [6]helicenes demonstrate a much higher chemical stability and fine tuning of the optical properties of the diazas core is achieved through selective and orthogonal post-functionalization reactions.

TL;DR: In this paper, the excited state and electron injection dynamics of three new organic sensitizers, comprising a triphenylamine moiety connected by an ethenylene (C−C double-bond) or ethynylene π-spacer to an electron-withdrawing benzothiazole bearing a cyanoacrylic acid anchoring group, have been studied using a combination of steady-state and femtosecond-resolved spectroscopies.

TL;DR: Differences are explained in terms of hydrogen-bond interactions between the solvent and the azo nitrogen atoms of MO, which not only change the nature of the S1 state but also have an impact on the shape of ground- and excited-state potentials, and, thus, affect the deactivation pathways from the excited state.

TL;DR: The excited-state dynamics of two molecular dyads connected via a peptide linker to a core-substituted naphthalenediimide (NDI) have been investigated using optical spectroscopy and show rich photophysics.