| 초록 |
A red phosphorescent Iridium complexes, Ir(TMP-TH)2(acac) Ir(DMA-DT)2(acac) were synthesized for organic light-emitting diodes (OLEDs). This material was designed by result of Gaussian modeling program. The ligand, TMP-TH, have the electron donor and acceptor in structure. Also, hexyl group was added for solubilization condition. So, It showed Intramolecular Charge Transfer(ICT) property. The TMP-TH was synthesized by Suzuki coupling reaction, and Ir(TMP-TH)2(acac) was synthesized by Nonoyama reaction. The UV-Visible absorption peak of TMP-TH was measured to be at 363 nm and its photoluminescence (PL) emission spectrum showed blue light-emission peaked at 425 nm in chloroform solvent. The devices fabricated by Ir(TMP-TH)2(acac) as emitting layer dopant. The device structures were ITO / NPB / CBP: Ir(TMP-TH)2(acac) / Bphen / Liq / Al. |
