Osmium- and Ruthenium-Based Phosphorescent Materials: Design, Photophysics, and Utilization in OLED Fabrication
Resource
European Journal of Inorganic Chemistry 2006 (17): 3319-3332
Journal
European Journal of Inorganic Chemistry
Journal Issue
17
Pages
3319-3332
Date Issued
2006
Date
2006
Author(s)
Chi, Yun
Abstract
Abstract Osmium(II) complexes possessing β‐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 Ru II 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. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
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Type
journal article
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