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Lighting with organophosphorus materials: solution-processed blue/cyan light-emitting devices based on phosphaphenalenes

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Abstract

A family of electroluminescent organophosphorus materials for solution-processed organic light-emitting diodes is reported. The investigated systems present a six-membered phosphorus heterocycle fused with a pyrrole or benzopyrrole moiety. The materials exhibit high thermal stability and are soluble in a variety of organic solvents. Already in very simple OLED architectures, the novel electroluminescent materials display blue or cyan luminescence; i.e. color coordinates x = 0.18; y = 0.21 and x = 0.22; y = 0.30, respectively, with performances that are in the range of state-of-the-art phosphazene materials. In electrofluorochromic devices, the color emission coordinates of the organophosphorus materials are tuned upon applying an electric potential. These findings set the bedrock for the development of new generations of organophosphorus light-emitting devices.

Graphical abstract: Lighting with organophosphorus materials: solution-processed blue/cyan light-emitting devices based on phosphaphenalenes

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Publication details

The article was received on 27 Jan 2019, accepted on 27 Feb 2019 and first published on 13 Mar 2019


Article type: Communication
DOI: 10.1039/C9DT00380K
Citation: Dalton Trans., 2019, Advance Article

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    Lighting with organophosphorus materials: solution-processed blue/cyan light-emitting devices based on phosphaphenalenes

    P. Hindenberg, J. Zimmermann, G. Hernandez-Sosa and C. Romero-Nieto, Dalton Trans., 2019, Advance Article , DOI: 10.1039/C9DT00380K

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