Synthesis of triplet emitters and hosts for electrophosphorescence

Khai Leok Chan; Chris S. K. Mak; Nicholas R. Evans; Scott E. Watkins; Sofia I Pascu; Andrew B. Holmes; Anna Hayer; Anna Köhler; Lekshmi Sudha Devi; Richard H. Friend

doi:10.1117/12.624124

8 October 2005 Synthesis of triplet emitters and hosts for electrophosphorescence

Khai Leok Chan, Chris S. K. Mak, Nicholas R. Evans, Scott E. Watkins, Sofia I Pascu, Andrew B. Holmes, Anna Hayer, Anna Köhler, Lekshmi Sudha Devi, Richard H. Friend

Author Affiliations +

Proceedings Volume 5937, Organic Light-Emitting Materials and Devices IX; 59370B (2005) https://doi.org/10.1117/12.624124
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Electroluminescence from conjugated polymers can be significantly improved by harnessing the energy of their nonemissive triplet states. Poly(2,7-dibenzosilole) has been prepared and its triplet energy has been measured as 2.14 eV, a figure that is slightly higher than that of polyfluorene (2.09 eV). Two new tris-cyclometalated iridium complexes with blue-to-green emission properties have been prepared and characterized.

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Khai Leok Chan, Chris S. K. Mak, Nicholas R. Evans, Scott E. Watkins, Sofia I Pascu, Andrew B. Holmes, Anna Hayer, Anna Köhler, Lekshmi Sudha Devi, and Richard H. Friend "Synthesis of triplet emitters and hosts for electrophosphorescence", Proc. SPIE 5937, Organic Light-Emitting Materials and Devices IX, 59370B (8 October 2005); https://doi.org/10.1117/12.624124

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