Poly(2,7-dibenzosilole): a new blue light emitting polymer

Khai Leok Chan; Mary J. McKiernan; Carl R. Towns; Andrew B. Holmes

doi:10.1117/12.646429

9 October 2005 Enhanced color stability from poly(2,7-dibenzosilole)

Khai Leok Chan, Mary J. McKiernan, Carl R. Towns, Andrew B. Holmes

Proceedings Volume 5937, Organic Light-Emitting Materials and Devices IX; 59372A (2005) https://doi.org/10.1117/12.646429
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

For multicolor display applications, polymeric light emitters of the three primary colors of red, green and blue are required. Emitters of high luminescence efficiency and long lifetime stability for red and green have been found, but the search for a suitable blue emitter continues. 2,7-Disubstituted dibenzosilole monomers have been prepared by the selective translithiation of 4,4'-dibromo-2,2' diiodobiphenyl followed by silylation with dichlorodihexylsilane. Suzuki copolymerization of dibromo and bis(boronate) monomers afforded poly(9,9-dihexyl-2,7-dibenzosilole) which showed better color stability and efficiency than the corresponding polyfluorene in a single layer light emitting device. Preliminary studies demonstrated this to be a promising blue light emitting polymer.

Citation Download Citation

Khai Leok Chan, Mary J. McKiernan, Carl R. Towns, and Andrew B. Holmes "Enhanced color stability from poly(2,7-dibenzosilole)", Proc. SPIE 5937, Organic Light-Emitting Materials and Devices IX, 59372A (9 October 2005); https://doi.org/10.1117/12.646429

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