Osmium- and Ruthenium-Based Phosphorescent Materials : Design, Photophysics, and Utilization in OLED Fabrication

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)3319-3332
Journal / PublicationEuropean Journal of Inorganic Chemistry
Issue number17
Online published13 Jul 2006
Publication statusPublished - Sep 2006
Externally publishedYes


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 OsII and RuII 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.

Research Area(s)

  • Luminescence, N ligands, Osmium, Phosphorescence, Ruthenium