Osmium- and ruthenium-based phosphorescent materials: Design, photophysics, and utilization in OLED fabrication

被引:239
作者
Chou, Pi-Tai [1 ]
Chi, Yun
机构
[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
[2] Natl Tsing Hua Univ, Dept Chem, Hsinchu 300, Taiwan
关键词
osmium; ruthenium; N ligands; phosphorescence; luminescence;
D O I
10.1002/ejic.200600364
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Osmium(II) complexes possessing beta-diketonate, quinolinate, diimine, and C-linked pyridyl azolate chelates reveal interesting structural and photophysical properties. Spectroscopic and dynamic measurements, in combination with theoretical analyses, have provided an important understanding of the electronically excited state properties of these complexes, such as the energy gap and nature of the lower lying states, rate for intersystem crossing, and the efficiency of corresponding radiative decay and nonradiative deactivation processes. This review also reports on the synthetic processes that lead to the neutral Os-II and Run complexes that possess two trans-substituted phosphane donor ligands together with two anti-parallel, aligned azolate chromophores. Considerable efforts have been made to focus on utilizing these emitting materials as phosphorescent dopants for practical PLED and OLED fabrication. Consequently, the interplay between these emitting materials and device configurations is discussed. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006).
引用
收藏
页码:3319 / 3332
页数:14
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