Synthesis and characterization of hole transporting polymers having tripheylamine dervatives ( TPAs ) by condensation polymerization = Synthesis and characterization of hole transporting polymers having tripheylamine dervatives ( TPAs ) by condensation polymerization

다국어 초록 (Multilingual Abstract)

Novel polymers having hole transport ability were prepared by condensation polymerization of triphenylamine derivatives (TPAs) and aldehydes such as paraformaldehyde (FA) or benzaldehyde (BzA). The polymers synthesized had high glass transition temperature in the range of 172-239℃ and were soluble in common organic solvents. The polymers had hole mobility in the range of 10＾-5 to 10＾-6 ㎠/Vs. The electroluminescent (EL) devices were fabricated using polymers prepared from N, N`-diphenyl -N, N`-bis(4-methylphenyl)-(1,1`-biphenyl)4,4`-diamine (TPD) as a hole transport layer and aluminum trisquinolinol as an electron transporting and emitting layer. It had turn on voltage of 4V and maximum luminance of 10⁴ cd/㎡, which correspond to the device using low molecular weight compound.