Triphenylamine–Benzimidazole Derivatives: Synthesis, Excited-State Characterization, and DFT Studies
作者:João Pina、J. Sérgio Seixas de Melo、Rosa M. F. Batista、Susana P. G. Costa、M. Manuela M. Raposo
DOI:10.1021/jo401803u
日期:2013.11.15
absorption spectra, together with quantum yields of fluorescence, internal conversion, intersystem crossing, and singlet oxygen. From the overall data the radiative and radiationless rateconstants could be obtained, and it is shown that the compounds are highly emissive with the radiativedecay dominating, with more than 70% of the quanta loss through this deactivation channel. The basic structure of the
performance of PhOLEDs, we have used carbazole/triphenyl amine as hole transporting moiety and cyano along with benzimidazole as electrontransporting core in 3-Cbz-ImdCN, 4-Cbz-ImdCN and TPA-ImdCN. Their thermal, photophysical and electrochemical properties have been evaluated to shed light on structure-property-performance relationship. Good performances have been exhibited by these bipolar host materials