4-Azafluorenone and ?-Carboline Fluorophores with Green and Violet/Blue Emission.

ABSTRACT: The emission properties of three 4-azafluorenone and five new ?-carboline fluorophores in both solution and thin solid films were investigated. Fluorescence of the azafluorenone is clearly enhanced in thin solid films due to the presence of phenyl/biphenyl rotors, and these derivatives can be classified as green Aggregation-Induced Emission luminogens (AIEgens) with a non-emissive heteroaromatic core structure. Compared to azafluorenones, emission of ?-carbolines is hypsochromically shifted to the blue region of the electromagnetic spectrum, and most of these derivatives exhibit strong violet-blue fluorescence in both solution and thin solid film layers. Further, the effective mobility and electroluminescence of new ?-carbolines were investigated in prepared organic field-effect transistors and organic light-emitting diodes, respectively.

SUBMITTER: Cigan M 

PROVIDER: S-EPMC6651119 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature