Synthesis, photophysical and electrochemical properties of 2,8-diaryl-dibenzothiophene derivatives for organic electronics

Journal of Chemical Sciences

Neeraj Agarwal1¹  N Periasamy1¹  Pabitra K Nayak¹ 

[1] Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005$$

关键词: Dibenzothiophene;    Suzuki-Miyaura coupling;    palladium catalyst;    phosphorescence;    triplet OLED;    hole blocker.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

A series of 2,8-𝑝-diaryldibenzothiophene derivatives were synthesized and characterized. These molecules have electron withdrawing or electron donating groups at the para phenyl position, which alters the electronic properties of these derivatives. The quantum yield, fluorescence lifetime, singlet, triplet and EHOMO energy levels of these compounds were determined by fluorescence, phosphorescence and cyclic voltammetry. A plot of Hammett constants of the para substituents vs EHOMO revealed a linear relationship. The usefulness of these molecules in organic light emitting diodes, OLEDs is discussed vis-à-vis the energy levels and properties.

【 授权许可】

Unknown