Synthesis and electroluminescent properties of new phenothiazyl derivatives

Synthesis and Hole-Injection Property of Phenothiazinyl Derivative Containing Triphenylamine Moiety in OLED Device

“…We also used tertiary butyl group in order to decrease packing effect and light absorption at visible light region. Phenothiazine group has been previously reported as hole injection layer by our group [6].…”

Phenothiazinyl- and 4-diethylaminophenyl-substituted diethylenes as fluorescent and hole-transporting molecular materials

“…Compounds 4, 5, 7, 8 exhibit broad absorption up to 475 nm with l max in the range of 303-416 nm. The comparison of the absorption spectra of compounds 4,5,7,8 with that of Et HxPH shows that these compounds have new absorption maxima in the longer wavelength region at 375, 392, 398 and 416 nm, respectively. Compounds 6 and 9 containing diethylaminophenyl groups exhibit broad absorption bands with l max values of 367 and 400 nm.…”

“…Among electroactive aromatic amines triphenylamine and carbazole-based materials prevail [5,6]. Phenothiazine having electron-rich sulphur and nitrogen heteroatoms is much less studied and exploited as electroactive moiety [7][8][9]. Even less works are reported on phenothiazinyl-substituted ethylenes [8,10].…”

Synthesis and characterisation of azobenzene-bridged cationic–cationic and neutral–cationic electrochromic materials

“…Consequently, ECMs have attracted extensive research attention from researchers since Platt [14] reported the electrochromic phenomenon in dyes. ECMs include inorganic materials, such as metal oxides [15][16][17][18], and organic materials, such as phenothiazine [19][20][21][22][23][24], anthraquinone [25][26][27][28][29][30][31][32], viologen [33][34][35][36], thiophene [37][38][39][40], polythiophene [41][42][43][44][45][46][47], polyaniline [48][49][50], polypyrrole [51][52][53][54], and polyimide [55]. Compared with inorganic ECMs, organic ECMs exhibit the unique advantages of high optical contrast, fast switching speed, flexible device fabrication, and a multitude of achievable colors via chemical structure variation.…”