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11 - Polymers for Phosphorescent LEDs

Published online by Cambridge University Press:  28 March 2024

Andrew Grimsdale  and
Paul Dastoor
Andrew Grimsdale
Affiliation:
Nanyang Technological University, Singapore
Paul Dastoor
Affiliation:
University of Newcastle, New South Wales
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Summary

Emission from organic materials is usually fluorescence from decay of singlet states, but in LEDs a majority of the excited states generated are triplet states which can only decay by phosphorescence or by thermally-activated delayed fluorescence (TADF). To improve the potential maximum efficiency of LEDs, it is necessary to incorporate into the emissive material chromophores which are phosphorescent or which show TADF. The ways in which such units can be incorporated into polymers are described and compared and the device results to date and prospects for future development discussed.

Keywords

polymer synthesisluminescencephosphorescencelight-emitting diodes
Type
Chapter
Information
Conjugated Polymers for Organic Electronics
Design and Synthesis
 , pp. 173 - 183
Publisher: Cambridge University Press
Print publication year: 2024

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